Funtion: Testing Power, Power factor, Voltage, Current, and Annual power consumption(calculated by 10hrs/day); It could test 2 lamps at the same time, one side is AC100-250V, The other side is DC12V

base: E14 B15 B22 GU10 G9 E40 G4 MR16
with different adaptors you could check different lamps quality anytime everywhere.

with the build-in shor-circuit protection mechanism, they are safe to use no matter at home or laboratories.

with 1 year warranty if non-human reson error, free of charge replacement is avialable