Could someone point to a datasheet that specifies the temperature coefficient of leds ? Specifically, of red ones, but in general would be good. I expect the tempco of different colored leds to be different, by junction material. Is it ? thanks, Peter P. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist