efficient light sources
efficient light sources
(OP)
What is the light source and driver with the best luminous efficacy in lumens per watt. I have a low voltage application - less than 40 volts. The light source must have a life of 10,000 hours. The operating temperatures are outdoor temperatures in the continential united states.
I need to deliver about 15 lumens per lamp. cost no more than $5 per lamp and driver. thanks.
I need to deliver about 15 lumens per lamp. cost no more than $5 per lamp and driver. thanks.





RE: efficient light sources
The highest efficiency lights commonly used for outdoor lighting are low pressure sodium. I don't think you'll find a 40V ballast, but you could step up the voltage pretty easily.
This will give you highest efficiency, and the ugliest light.
It would help if we knew what you were trying to do and how much real estate you need to light.
Good luck.
RE: efficient light sources
I can't be any more specific about the shape and intensity of the light source. At this point, we are also flexible on color. As close to white as we can get.
RE: efficient light sources