Research into LED RGB Light Fixture with Adjustable Radiation Spectrum for Aquarium Lighting

Abstract

The article presents the results of a study of an aquarium lighting device prototype developed based on a RGB LED strip using computer technologies for measurement of its spectral characteristics on the basis of practical studies of the effect of chromaticity on flora and fauna of water bodies. The studies were carried out at Light and Engineering Metrology resource sharing centre of the Electronics and Light Engineering Institute of N.P. Ogarev Mordovia State University. For development of the prototype of an aquarium lighting device based on RGB LED strip, the results of colorimetric measurements of special fluorescent aquarium lamps made by Hagen and Havells Sylvania Europe LTD (Germany) were used. The laboratory set based on a Raspberry Pi single-board computer and software for colorimetric calculations and set control was developed for connection and adjustment of spectral characteristics of the RGB LED strip. The colorimetric characteristics of the prototype were compared to those of special fluorescent lamps for aquarium lighting. Satisfactory repeatability of spectra and CCT was demonstrated for the developed LED-based prototype aquarium lighting device. These studies will allow us to identify further areas for updating of functional and software solutions to make it possible to adjust spectral characteristics and to make them close to optimal levels for specific species.