Excuse me, how many different sizes for LED lamp lumens
If we assume power 5W 4 inch downlight case, assuming optical efficiency is 100LM/W, 4 inch downlight ideal luminous flux of 500LM, is on the wreck. The transparent cover is about 400 of the LM, if it is other material non transparent light cover would be lower, probably only more than 300 LM
Ha ha, we should consider the problem of heat dissipation, ah, is the light will heat
If you want to output LM, we must first choose high light efficiency of the lamp, this problem because there is no explanation for what your power and lamp type lamp, so I can not estimate
See customer needs and in what place, with the output of the LM itself and quality of reflective glass beads, beads arranged, there is a direct relationship between the transparent mask
