My modest project consists in making myself a pendant lamp for my living room using linear lighting sources. I have questions and need your advice:
It seems that low output 4000k white SMD led are more efficient that their high output big brothers. Could I get 1000 lumens out of a line of 10 or more SMD leds (philips), welded every 2 cm over a PCB, do I need a cooling device if I wish to have a correct lifetime (above 30000h with > 90% of initial light output)? Do I really need to buy a...
SMD lighting led
It seems that low output 4000k white SMD led are more efficient that their high output big brothers. Could I get 1000 lumens out of a line of 10 or more SMD leds (philips), welded every 2 cm over a PCB, do I need a cooling device if I wish to have a correct lifetime (above 30000h with > 90% of initial light output)? Do I really need to buy a...
SMD lighting led