... CCT(color temperature),wtta,power factor,current for LED CFL lamps.for DC and AC lamp testing Lux CCT(color temperature),wtta,power ... power meter Measures:1. It's practical tester to identify or compare the quality of LED lamps,fluorescent lamps, halogent ... or incandescent lamps,or appliances from DC0-30V or AC 100-277V within 300W at the ...