Measurement of color, photometry and electrical parameters of street light LEDs

Abstract

This paper presents the procedure to evaluate the performance parameters of street light LEDs i.e. color, photometry, and electrical characteristics such as voltage, current, power, and power factor using a standard Sphere Spectroradiometer. The integrating Sphere 1.5 Meter measures total radiant flux (W/nm), from which total Luminous flux and color quantities are obtained at different levels of the supply voltage. There are three street light LEDs tested experimentally with the Spectroradiometer for different voltage levels for flux and power output. The simulated spectrum test reports give values of parameters such as color, photometry, and electrical quantities. At the later stage, the performance of LED is compared with the conventional incandescent lamp. The simulated spectral, as well as experimental results, have shown the superiority of LED street light over an incandescent lamp.