... /day), We are specializingac in all kinds of lights and lighting Equipment that test Lumen, luminous efficiency, lux, ... cct ,Voltage, Current, Power, Power Factor and Annual power consumption of lighting products. All those are CE ... should be AC 200V-250V,50Hz. If test LED lamp or other lamps without ballast inside the meter, ... T8 full range power meter(LED tube and bulb demo case)