What is Thermal Management?

A common misconception is that LEDs do not generate heat. Although the beam emitted is cool they do, like any other light source, convert electric power in radiant heat. Lifetime of the LED Chip is directly linked to the operating temperature of the LED Chip (often expressed as Tjor Junction Temperature). Poor thermal management where the LED is operating above manufacture guidelines can also lead to colour shift.

How does John Cullen manage the operating temperature?
There are various methods of doing this, at John Cullen we use the body of the luminaire to draw heat away from the LED chip. We do this by carful material selection, considered produce development and by working alongside our subcontract partners who are able to virtually assess designs and physically test prototypes.

How does this benefit you (our clients)?
By fully testing our luminaries we are able to offer our clients information such as maximum ambient temperature the luminaire can operate in, so our clients can be assured of life time and colour consistency of their investment in our lighting.