Our LED Tube can offer 180lm/W in milky len & low power, other LED high power product can offer >140lm/w
The ratio of the total luminous flux emitted by the light source to the electrical power consumed by the light source is called the luminous efficacy of the light source.
That is, the efficiency of converting electrical energy into light energy
Luminous efficiency h said
The unit is lumen / W (lm / W, lm / W)