... Lumen, luminous efficiency, lux, cct ,Voltage, Current, Power, Power Factor and Annual power consumption (calculated by 10hrs/day ) of lighting products. ... GU10 G9 E40 G4):2. Testing Power,Power factor, Voltage ,LUX ,color temperature and Annual power consumption.It could test 2 lamps ... at the same time,one side is AC100-250V,The other ...