It is essential to make sure that the luminaire is able to dissipate the heat it produces. The maximum temperature reached in the luminaire never exceeds the “T…” relative to its components because it can be dangerous and can cause damages. Lampholders without a relative "T…" (par. 17.1 "test A" of the EN/IEC 60400 standards) can work up to a maximum temperature of 80°C.