... calculated by 10hrs/day), We are specializingac in all kinds of lights and lighting Equipment that test Lumen, luminous efficiency, lux, ... 150cm).TEST2 is without any ballast inside could test different size and wattage of LED tubes or T8-T5 fluorescent adaptors.7, LOAD1 ... electrical products with power plug, and no need to connect the wire in additional.8,It have different socket converters ,such as ...