Influence of the temperature of a white LED on its lighting characteristics

Quispe M.R.; Oscco F.M.A.; Horn M.J.; Gómez M.M. · Journal of Physics: Conference Series (2023) · DOI: 10.1088/1742-6596/2538/1/012009

Resumen

The influence of the temperature of two white LEDs, a good brand and one of unknown brand, on their characteristic curves and their light properties was experimentally evaluated in the range from 10 °C to 95 °C. The measurements show that the luminous efficacy decreases with increasing temperature, specially of the LED of unknown brand. In addition, a small redshift could be observed of the blue peak of their respective spectra, as well as changes in their correlated color temperatures (CCT). © Published under licence by IOP Publishing Ltd.

Instituciones: Universidad Nacional de Ingeniería; Universidad Tecnológica del Perú