... test Lumen, luminous efficiency, lux, cct ,Voltage, Current, Power, Power Factor and Annual power consumption of lighting products. All those are CE approved ... easy to carry, you could check lamps quality anytime everywhere. 4.It is safe to use with short circuit protection mechanism ... 4kg.2.Size: 250*200*135mm3.Maximum testing wattage: 300W.4.Input voltage: 100-250V AC. 5.Testing lamps: energy saving ...