Light Bulb Research Articles

Method for determination of the spectral mismatch correction factors for the luminous responsivity of photometers when measuring the characteristics of LED lamps

This paper describes the challenges associated with the metrology of LED sources. The main problem is the difference between the spectra of LED lamps and the spectrums of reference lamps, which are mainly highly stable and well-reproducible incandescent lamps. The difference in spectra leads to the fact that the luminous responsivity of the calibrated photometer will be different for the reference incandescent lamp and for the LED lamp. The difference is caused by the fact that a relative spectral characteristic of the photometer responsivity is always different from the spectral responsivity of the human eye (V(λ) curve), which determines all luminous quantities. The greater the difference between the relative spectral responsivity of the photometer and V(λ) is, the more the luminous responsivity of the photometer will differ for the reference lamp and for the LED lamp. The paper describes a method developed at the NSC “Institute of Metrology” for experimental determination of mismatch correction factors of luminous responsivity that account for the difference in the LED spectra to solve the problems of metrological support of LED sources. Methods of experimental study of mismatch correction factors for measuring instruments of luminous quantities of LED radiation sources are presented.

Green synthesis of biomass-derived carbon quantum dots for photocatalytic degradation of methylene blue.

Water pollution, significantly influenced by the discharge of synthetic dyes from industries, such as textiles, poses a persistent global threat to human health. Among these dyes, methylene blue, particularly prevalent in the textile sector, exacerbates this issue. This study introduces an innovative approach to mitigate water pollution through the synthesis of nanomaterials using biomass-derived carbon quantum dots (CQDs) from grape pomace and watermelon peel. Utilizing the hydrothermal method at temperatures between 80 and 160 °C over periods ranging from 1 to 24 h, CQDs were successfully synthesized. A comprehensive characterization of the CQDs was performed using UV-visible spectroscopy, Fourier-transform infrared spectroscopy, dynamic light scattering, Raman spectroscopy, and luminescence spectroscopy, confirming their high quality. The photocatalytic activity of the CQDs in degrading methylene blue was evaluated under both sunlight and incandescent light irradiation, with measurements taken at 20 min intervals over a 2 h period. The CQDs, with sizes ranging from 1-10 nm, demonstrated notable optical properties, including upconversion and down-conversion luminescence. The results revealed effective photocatalytic degradation of methylene blue under sunlight, highlighting the potential for scalable production of these cost-effective catalytic nanomaterials for synthetic dye degradation.

Architecture differentially affects thermal properties of Song Thrush Turdus philomelos nest walls

ABSTRACT Thermistors embedded on and within the nest wall were used to measure the changes in temperature between different parts of the architecture of the wall of Song Thrush nests as heat from a light bulb was conducted across the wall. The wood pulp forming the nest cup provided the greatest resistance to heat loss across the nest wall. Despite differences in nest mass and architecture, thermal conductance for Song Thrush nest walls were not statistically different from values previously reported for Common Blackbird Turdus merula nests. Song Thrush nests constructed over many years in the same geographical location exhibited an increase in the thickness of the wood pulp cup and a reduction in thermal conductance, i.e. the most recent nests were better insulated. However, nest mass or thermal insulation did not affect reproductive success between years.

Synthesis and characterisation of Ag-Cu-co-Doped WO3 @Carbeneous materials composites for waste water treatment

Nanoparticles of tungsten oxide are widely used in advanced chemical processes but the application of tungsten oxide (WO3) in photocatalysis is limited. To increase their application in photocatalysis, nanostructured tungsten oxide (W-1) is co-doped with silver and copper (W-2), and nanocomposites with g-C3N4 (W-3) and CNTs (W-4) are synthesized. Structural, elemental, and morphological analyses of prepared samples were carried out using different characterization techniques like XRD, SEM, FTIR, EDX, and Mott-Schottky. The bandgap of WO3 is 2.75 eV which is reduced to 2.32 eV by doping and composite formation. The degradation of crystal violet and chlorpyrifos is done to check the photocatalytic performance of prepared materials under the light bulb energy. Photodegradation experiment shows 83.33 % and 41 % degradation of CV and chlorpyrifos respectively. The higher degradation ability is shown by CNTs composites because they have smaller crystallite size (12.81 nm) as compared to other photocatalysts. In the presence of CNTs, the rate of recombination of holes and electrons decreases, resulting in the enhancement of photocatalytic activity. The research reveals that W-4 exhibits promising potential for applications in the photodegradation of organic wastes.

Permeate gap thermo-osmotic system for simultaneous freshwater production, energy storage, and power generation

The emerging thermo-osmotic system enables harvesting low-grade thermal energy below 100 °C for the simultaneous production of fresh water and electricity. Considering the fluctuation of low-grade heat sources, a novel permeate gap thermo-osmotic system without pump pressurization was proposed in this study, which also allows for energy storage. A lab-scale setup with a 32 cm2 membrane area was built, by which a 2 W light bulb was successfully illuminated through the thermal energy-potential energy-electricity conversion process. In the pressurization process of the permeate side, the hydrophobic membranes with non-woven support exhibit higher pressure resistance, capable of withstanding pressures exceeding 200 kPa. Through experimental and theoretical analyses, the influences of different operation conditions and membrane properties on system performance were studied. Furthermore, utilizing solar energy as the heat source, a case study was conducted based on real meteorological data from a typical coastal city over a consecutive 72-hour period. In the solar-driven PGTO system with a power capacity of approximately 150 kW, the exergy efficiency can achieve 1.04 %, with a power density surpassing 0.1 W m−2, and an average daily freshwater production of over 70000 t. The energy storage function enables stable power generation within the 72 h, and it can sustain steady operation for nearly 7 h thereafter in the absence of sunlight. This study demonstrated the potential of the proposed PGTO system to efficiently utilize fluctuating low-grade thermal energy.

Low-cost visible spectrophotometer for detecting absorption and emission in metallic blends of colorful samples solution

The innovative, affordable assembled visible spectrophotometer employed in this study aims to analyze the absorption and emission of colorful metallic blends of colorful samples solution. It features a tungsten white light bulb source, an ammeter as a detection element, a digital voltmeter, a diffraction grating for light dispersion, a converging lens for light collimation, and filters of various wavelengths (blue, red, yellow, and yellow-green). The light bulb source was powered by a standard supply set at 6 V. Using metallic solutions of chromium chloride (CrCl3) and copper sulphate (CuSO4) with different filter wavelengths, the performance was assessed. The transmittance and absorbance of these metallic solution samples exhibit a linear relationship with approximately 3 % deviation compared to results from a commercial UV–VIS spectrophotometer (DR-6000). Similar investigations were conducted with equivalent quantities of CuSO4, CrCl3, and nickel chloride (NiCl2) solutions, showing a discrepancy ranging from 2 % to 8 % when compared with the commercial UV–VIS spectrophotometer. Therefore, in low-income countries like Ethiopia, colorful metallic solution samples can be effectively analyzed using the newly designed low-cost spectrophotometer.

Improved sensitivity and ambient light stability of radiochromic plastic dosimeters through composite azo compounds

The aim of this study is to evaluate and compare the dose sensitivity and ambient light resistance of radiochromic plastic dosimeters (RPDs) incorporating mixed azo compound with those incorporating individual azo compounds.RPDs were fabricated using a mixture of polyurethane, leuco dye, initiator, and solvent.In this study, three azo compounds (tartrazine, sunset yellow, and allura red) were incorporated into RPDs either individually or in combination. Thus, we produced five dosimeter types: one original RPD (A) without azo compounds, three RPDs (B, C, D) with individual azo compounds, and one RPD (E) with mixed azo compounds. Initially, to compare dose response and sensitivity, one group of each sample was delivered to doses ranging from 0.2 Gy to 3 Gy with 6 MV photon beams at 600 cGy/min. To assess ambient light resistance, another group was exposed to light for varying durations. Following irradiation and light exposure, optical density (OD) was obtained using a cone-beam optical CT scanner for each group. Wavelength spectra for each sample were acquired using a spectrometer. This study encompassed analysis and comparison of dose response curves, sensitivity, and netOD-time graphs among samples. Additionally, the absorption wavelength spectra of the samples were compared with the light spectrum emitted by a light bulb.The dose response curves were represented by linear functions, with the slope indicating the sensitivity of each sample. The sensitivity for samples A-E were 0.0759, 0.0988, 0.0902, 0.0809, and 0.1013 ΔOD/Gy, respectively. Samples B-E demonstrated increases in sensitivity of 30.1%, 18.8%, 6.5%, and 33.4%, respectively, compared to sample A. Sample E, which incorporated mixed azo compounds, demonstrated the highest sensitivity and remarkable resistance to ambient light. The results suggested that all azo compounds influenced the sensitivity of the RPDs, and that mixed azo compounds does not reduce the sensitivity of the RPDs. The ambient light resistance was dictated by the overlap between the light bulb's wavelength and the azo dyes' absorption range, which for mixed azo compounds spanned widely from 300 nm to 600 nm. The mixed azo compounds, as opposed to a single azo compound, allowed for the absorption of a wider range of light wavelengths, leading to an increased resistance to ambient light.Our study demonstrated that the inclusion of azo compounds enhances the sensitivity of RPDs. Specifically, the use of mixed azo compounds provided the highest sensitivity and exhibited superior resistance to ambient light. This improved performance can be attributed to the broader absorption wavelength spectrum achievable with mixed azo compounds, enabling absorption across a wider range of light wavelengths. These findings highlight the potential utility of mixed azo compounds in the fabrication of RPDs, enhancing their function as highly sensitive and resistant dosimeters to ambient light.

Biomass nanoarchitectonics with activated rice husk char for nanoporous carbon as electrode material: Enhancing supercapacitor electrochemical performance

Nanoporous carbon from activated rice husk char was prepared via KOH activation at different ratios of rice husk: KOH, for using as electrode material in supercapacitor. The electrode could exhibit high performance in 6 M KOH aqueous electrolytes, particularly in terms of specific capacitance and power density. The Brunauer-Emmett-Teller (BET) analysis showed a high specific surface area of 2833 m²/g with a mesoporous structure in a sample activated with a 1:3 ratio of rice husk to KOH. In this sample, a high specific capacitance of 195.36 F/g was obtained at a current density of 1 A/g with excellent cycle stability of 99.87 % after continuous charge/discharge test for 10,000 cycles at 10 A/g. Furthermore, the fabricated symmetric coin cell exhibits a power density of 526.88 W/kg and an energy density of 14.77 Wh/kg. The practical application of this cell is demonstrated by its ability to power a 3 V LED light bulb for over 900 s.

Energy Harvesting System

Abstract: This paper presents a novel energy harvesting system designed to harness ambient mechanical energy using piezoelectric sensors, with the Arduino Uno microcontroller serving as the central processing unit. The system's primary objective is to convert mechanical vibrations into electrical energy, storing it for potential use in powering low-energy electronic devices. The proposed setup incorporates piezoelectric materials strategically positioned to capture mechanical vibrations from various sources. The core of the system is an Arduino Uno microcontroller, programmed to efficiently manage the energy harvesting process. The harvested energy is stored in a rechargeable battery, ensuring a consistent power supply for applications with intermittent energy demands. To validate the effectiveness of the system, a light bulb is employed as a demonstrative load, allowing for real-time observation of the energy harvesting capabilities. The paper details the experimental setup, including the placement and configuration of piezoelectric sensors, the Arduino Uno programming logic, and the integration of a light bulb for visual confirmation of the generated current. Performance metrics such as voltage output, current production, and power generation efficiency are thoroughly analyzed under varying environmental conditions and mechanical vibrations. Results demonstrate the feasibility of the proposed energy harvesting system, showcasing its potential as a sustainable power source for low-power electronic devices. The combination of piezoelectric materials, Arduino Uno control, and a practical load application illustrates a promising approach to energy harvesting, paving the way for advancements in self-sufficient and ecofriendly power solutions

Magnetically recyclable nano-sized Fe3O4@TiO2 heterogeneous photocatalyst for 2-substituted benzimidazoles synthesis under visible light

The method for immobilizing TiO2 nanoparticles on Fe3O4 was presented. On the base of microscopic and spectroscopic characterizations, the prepared Fe3O4@TiO2 nanoparticle composites were employed as a heterogeneous photocatalyst to catalyze the synthesis of 2-substituted benzimidazoles under incandescent light. The composite material exhibited the enhanced photoactivity compared to bare TiO2 and Fe3O4, being able to yield a variety of 2-substituted benzimidazoles in moderate to good yield with recyclability and stability. A possible photocatalysis mechanism was investigated based on the free radical scavengers tracking method. It was evident that holes, ·OH radical and singlet oxygen played the important roles in the synthesis of 2-substituted benzimidazole.

Effects of Different Qualities of Light and Phytohormones on Seed Germination, Seedling Growth and Establishment of Papaya (Carica papaya) cv. Pusa Nanha

The present study was undertaken to study the effects of different qualities of light and phytohormones (GA3 @ 200ppm) on papaya seed germination, seedling growth, and establishment. The experiment was laid in Randomized Block Design. The experiment comprises of eight treatments viz. T0 {Natural Light (95000 lux)}, T1{Shade Net/Green House (Light 21500 lux)}, T2 {Polyhouse (light 7750 lux)}, T3 {Partially shaded area (light 2800 lux)}, T4 {Fully shaded area (light 880 lux)}, T5 {Incandescent Light (290 lux)}, T6 {Fluorescent Light (3000 lux)}, T7 {Growth Chamber Light (light 2500 lux)}. Among different treatments T6 performed best in terms of Seed germination, Seedling growth and Establishment of Papaya. The findings revealed that treatment T6 {Fluorescent Light (3000 lux)} + GA3 (200 ppm) performed best in term of Days to Germination (8 Days), Germination percentage (94.44%), Number of leaves (9.6), Plant height (16.23 cm), stem vigour index (1444.93), Leaf area (394.4 cm2), Chlorophyll content (41.47 SPAD value) and stem girth (0.37 cm), Establishment Percentage (93.33%). The highest B:C ratio was found in the same Treatment, T6 {Fluorescent Light (3000 lux)} + GA3 (200 ppm), with 3.5.

Impact of Economic Awareness on Sustainable Energy Consumption: Results of Research in a Segment of Polish Households

This manuscript explores the relationship between the economic awareness (as a part of energy awareness) of Polish households and their sustainable energy consumption practices. Sustainable consumption is measured by the frequency of behaviors such as turning off electrical devices when not in use, removing mobile device chargers from sockets, switching off lights when leaving a room, preferring showers over baths, using washing machines and dishwashers only when full, and purchasing energy-efficient appliances and light bulbs. Economic awareness is gauged through variables such as knowledge of electricity tariffs, understanding of electric bill components, awareness of electricity prices, exact knowledge of electricity expenses, electricity usage in kWh, knowledge of effective energy-saving methods, and familiarity with the energy efficiency classes of appliances and light bulbs. This study presents profiles of households with high and low economic awareness regarding their electricity expenditures and examines how these profiles differ in their sustainable energy consumption behaviors. This research is based on a survey of 1407 Polish households conducted online in 2023. Data collected from the survey were subjected to statistical analysis and are presented in tables and graphs. The findings are discussed in the context of the existing literature in the field, highlighting the implications of economic awareness on sustainable energy consumption practices. This research contributes to understanding how economic knowledge influences energy-saving behaviors among Polish households, providing insights for policymakers and energy conservation initiatives. One of the key findings of this paper is the significant association between economic awareness, energy-saving knowledge, and the adoption of sustainable energy consumption behaviors among Polish households. This study reveals that households with higher levels of economic awareness demonstrate a notably higher frequency of practices related to sustainable energy consumption compared to those with lower economic awareness. Similarly, households equipped with greater knowledge about energy-saving techniques exhibit a higher propensity to adopt energy-efficient behaviors. This underscores important roles of economic literacy and education in fostering behavioral changes towards more sustainable energy practices, highlighting the importance of targeted interventions and educational campaigns aimed at enhancing economic awareness and promoting energy-saving knowledge among consumers.

Maximizing the energy scavenging capability of droplet triboelectric nanogenerators through surface engineering

Recent advancements in energy harvesting have led to innovative methods for converting droplet motion into electricity, such as droplet triboelectric nanogenerators (D-TENGs). However, enhancing their power generation capacity and efficiency remains a challenge. We present a novel surface engineering approach that significantly boosts the electrical outputs of the D-TENGs. By grafting perfluorodecyltrimethoxysilane (PFDTMS) onto polydimethylsiloxane (PDMS) surfaces pre-treated with sandpaper, we achieve a dual effect: fluoridation and increased contact area between droplets and PDMS. This modification, when applied to a droplet-based TENG, yields a remarkable 10–20 fold increase in power metrics such as current, charge, and voltage as compared to untreated counterparts, resulting in an energy conversion efficiency of 17.1% under a 30 MΩ load. Our enhanced D-TENG efficiently harvested energy from falling tap water droplets, producing a current of ∼2 mA. Remarkably, a single droplet impact could illuminate 400 LED lights. Furthermore, when coupled with capacitors, the device powered a hygrometer and 3 W light bulbs, demonstrating substantial potential for real-world applications. This breakthrough in surface engineering for energy harvesters represents a significant step forward in the efficient and powerful generation of electricity from droplet motions.

ENHANCING E –LIFE WITH IOT: A SMART APPROACH TO EFFICIENT ELECTRICITY MANAGEMENT

In the contemporary era, energy conservation stands out as a pivotal challenge in striving towards a sustainable lifestyle. Regrettably, it often falls by the wayside due to a lack of awareness and the uncertainty surroundings the lifespan of electrical and electronic equipment. Nonetheless, energy conservation remains the most economically viable approach to address energy deficits. Introducing “E-Life,” a ground breaking product, offers a solution to this dilemma while fostering public consciousness. Traditional electricity-intensive devices, despite having specified power requirements and lifespans, frequently outlast their projected longevity. However, they tend to consume more power than indicated due to aging effects. For instance, empirical investigations reveal that a 40-watt incandescent light consumes an additional 25% of its original power post- lifespan. To mitigate such inefficiencies and monitor excessive power consumption across all electronic equipment, we propose integrating the E-life algorithm into an IoT-enabled device. This device, based on the ESP32 platform and capable of managing two loads, provides real-time monitoring and prompts replacement when necessary. Experimental results demonstrate that this innovative gadget can yield energy savings of over 37% within a six-month timeframe for constrained loads. Keywords—Energy Saving; Efficiency; Energy Management; Energy Conservation; IoT; E- Life; ESP32

Mid-term Clinical Outcomes of "Light Bulb" Core Decompression with Arthroscopic Assistance in Peri-collapse Osteonecrosis of the Femoral Head: A Retrospective Comparative Study.

Nontraumatic osteonecrosis of the femoral head (ONFH) is commonly encountered in orthopedics. Without early clinical intervention, most patients with peri-collapse of the ONFH will develop femoral head necrosis and eventually require hip replacement surgery. The aim of this study is to evaluate clinical outcomes in patients with ONFH who underwent "light bulb" core decompression (CD) with arthroscopic assistance and to compare them with the outcomes of those treated with traditional procedures. A retrospective review of patients with Stage II and IIIA (Peri-collapse) radiographic findings based on the Association Research Circulation Osseous (ARCO) stage for ONFH who underwent "light bulb" CD with or without arthroscopic assistance by a single-surgeon team between March 2014 and December 2018 was performed. All patients were followed up for a minimum of 2 years. The visual analogue scale (VAS) pain score, Harris hip score (HHS), and radiological imaging were evaluated. The categorical parameters were analyzed by chi-square test and the continuous variables conforming to a normal distribution were analyzed by Student's t-test. The study included a total of 39 patients (18 and 21 patients in the with and without arthroscopic assistance groups, respectively), with a mean age of 40.3 years and a mean follow-up of 22.2 months. Overall, there was a better VAS score in the arthroscopic assistance group than in the control group (p < 0.05), There was a significant difference in HHS (80.1 ± 9.2 vs 75.1 ± 12.7) at the last follow-up (p < 0.05). The rate of good and excellent outcomes was 94%. Similarly, there was no significant difference in the total rate of complications or conversion to THA. With arthroscopic assistance, "light bulb" CD could be achieved via hip arthroscopy with less trauma, and it offered the opportunity for more precise evaluation and monitoring for therapy and yielded better VAS scores after surgery and better hip function outcomes at the last follow-up.

Implementation of Internet of Things for Egg Incubation Control System

An egg incubator is a technology in the livestock industry used for automated and efficient egg hatching. However, in its development, existing egg incubators only utilize incandescent lamps without any notification system to indicate when the chicken eggs have hatched, and there is no temperature or humidity detection in the incubator. As a result, the incubator’s situation during the egg hatching process remains uncontrolled. Therefore, this research, we designed and constructed an egg incubator machine that utilizes a microcontroller as the main control unit, responsible for regulating temperature, humidity, and egg rotation. Through the implementation of the Internet of Things, this egg incubator is connected to the internet as a communication tool using specialized software, allowing farmers to remotely monitor the device. Users receive information about the incubator machine through the Telegram mobile application, such as the current temperature and humidity inside the incubation room, up to the hatching status of the eggs. Based on the test results conducted, it can be concluded that the hardware has been successfully developed using the Microcontroller. In the temperature sensor test, there was an average error of 3.14% in temperature readings and error 5.91% in humidity readings. Overall, the device has functioned well and as intended, which includes temperature and humidity readings, controlling the timing of the lamp, and shifting the egg tray. The performance test of the device successfully hatched eggs on time (for 21 days) with a success rate of 90%.

Assessment of internal and external disturbances on the fuzzy-based thermal control of a sub-scaled building testbed

This experimental study follows on our previous work on the development of robust fuzzy-based thermal control strategies of a multi-room sub-scaled building testbed. In the present analysis, the focus is placed on testing the robustness of the fuzzy controller under internal and external disturbances, as it deals with maintaining specific setpoint values of room temperatures. The testbed has eight rooms, distributed on two floors, with a cooling unit that supplies cool air to each room, and eight 40 W light bulbs serving as heat sources. T-type thermocouples gather the temperature data, and eight dampers deliver the airflow. The controller uses information about the difference between setpoint and actual temperatures, their derivative, and their cumulative integral. The fuzzy sets and if-then rules are built based on experimental data, and a Mamdani inference method is used to provide the inputs to the actuators. Results from experimental tests show that the fuzzy control strategy can handle the different types of disturbances while maintaining the room setpoints.

ПІДВИЩЕННЯ ЕФЕКТИВНОСТІ СИСТЕМ ОСВІТЛЕННЯ ЖИТЛОВИХ БУДИНКІВ І ОБ’ЄКТІВ СОЦІАЛЬНО-КУЛЬТУРНОГО ПРИЗНАЧЕННЯ

The results of a study of the energy efficiency of lighting installations of residential buildings and buildings of social and cultural purpose are given, and based on a technical and economic comparison of four options of lighting systems: with incandescent lamps, fluorescent lamps, compact fluorescent lamps and LED lamps, a quantitative assessment of lighting costs is given. A mathematical model of specific discounted costs was developed, which made it possible to take into account changes in lighting operating conditions over time, and the presentation of research results in relative units gave them a generalized appearance. Conclusions were drawn and recommendations for their application were given. Ref. 9, fig. 2.

Design and Testing of Holagen Incandescent Lamp-Based Corn Drying Cabinet to Improve Efficiency and Cleanliness of the Processing Process

Indonesia is a tropical country with entrepreneurs engaged in maize cultivation, most of whom live in rural areas. The corn processing process is heavily reliant on sunshine, however owing to the unpredictable environment and sunlight, which is less effective and hygienic in carrying out the corn drying process, the operation is hampered. As a result, a drying cabinet is created that uses heat from electricity and is specifically intended to accelerate the drying process. This corn drying rack employs incandescent lamps, including bulbs and holagen lamps. In addition, the number of drying racks is identified in order to assess the drying cabinet's capacity for work. After testing the tool with various blower speeds (15,000, 10,000, and 5,000 RPM), the electrical power utilized is 120 watts, which includes 50 watts of bulb/halogen lamp power, 40 watts of heated glass, and 30 watts of blower power. So it is known that holagen incandescent lamps are more successful at distributing work evenly on the shelf within 30 minutes, which can save drying time by 20% to 30%.

Potential Use of Andean Tuber Waste for the Generation of Environmentally Sustainable Bioelectricity.

The growing demand for agricultural products has increased exponentially, causing their waste to increase and become a problem for society. Searching for sustainable solutions for organic waste management is increasingly urgent. This research focuses on considering the waste of an Andean tuber, such as Olluco, as a fuel source for generating electricity and becoming a potential sustainable energy source for companies dedicated to this area. This research used Olluco waste as fuel in single-chamber microbial fuel cells using carbon and zinc electrodes. An electric current and electric potential of 6.4 ± 0.4 mA and 0.99 ± 0.09 V were generated, operating with an electrical conductivity of 142.3 ± 6.1 mS/cm and a pH of 7.1 ± 0.2. It was possible to obtain a 94% decrease in COD and an internal resistance of 24.9 ± 2.8 Ω. The power density found was 373.8 ± 28.8 mW/cm2 and the current density was 4.96 A/cm2. On day 14, the cells were connected in earnest, achieving a power of 2.92 V and generating enough current to light an LED light bulb, thus demonstrating the potential that Olluco waste has to be used as fuel in microbial fuel cells.