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Home > FAQ > Epitaxy > Q:We are using 40x40 mil size and 45x45 mil size chips for 1W . And 45x22 or 38x22mil size for 0,5w . Eff. is min. 120lm/w , package form is 3535 ceramic no lens flat type, and 5050 smd flat type. Cct 6500k, cri min 70-75, drive current 350 mA ( it c

Q:We are using 40x40 mil size and 45x45 mil size chips for 1W . And 45x22 or 38x22mil size for 0,5w . Eff. is min.  120lm/w , package form is 3535 ceramic no lens flat type, and 5050 smd flat type.Cct 6500k,  cri min 70-75, drive current 350 mA ( it can be change if you have suggest for it ), can you give us suggestion?


A:We suggest you choose our LED wafer on PSS substrate, EL wavelength(wafer):455+/-2.5nm, 70% yield rate.