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white pcb
Does anyone know the correct engineering description and a manufacturer for the white top coat / pcb lacquer that I see on some LED / solid state lighting PCB and MCPCBs today?
I am trying to specify it and am having problems with the description.
Many thanks
Jon Connell, IESNA
led use junction temperature
This is in fact the method that LED manufacturers use to predict lamp life in a real world lighting fixture application.
The Vf being a known function of junction temperature and LED lumen depreciation being a known function of junction temperature you can use the...
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