Luminous efficacy is the ratio of light output to power input for a luminaire or other light source. It is usually expressed in lumens per watt (lm/W) and is a measure of the efficiency of the light source. The higher the luminous efficacy, the more efficient the light source and the less electrical power required to achieve the same level of illumination.
Looking for a great deal? Check this out. Yours for $6.30. Stock is moving fast…
Looking for the best deals? We found an amazing offer that you won't want to…
Looking for the best deals? We found an amazing offer that you won't want to…
Here's something worth your attention today. Listed at $11. Limited availability on this deal. What…
Just stumbled across something excellent that I need to tell you about. Going for $17.…
The price-to-quality ratio here is outstanding. Available for $56. I wouldn't sleep on this one.…