LED
Recessed Lighting in Concrete Ceilings
Q: I'm dealing with a concrete ceiling in a condominium. If I use LED recessed lighting, do I still have to drop a 6-inch soffit? Someone told me that LED cans take up less space than traditional…
Light Output and 130V Bulbs
Q: I have tried to use 130V bulbs as an energy-saving technique, but found that the light output was different when I compared a 60W 130V bulb and a 60W 120V bulb. The 130V 60W looks more like a 120V…
Color Temperature vs. Color Rendering Index
Q: Just as I understand the concept of color temperature (Kelvin), now CRI is being bandied about as LEDs come into the market. What is it exactly?
A: I am right there with you. From the beginning…
Color Temperature for CFLs, LEDs
Q: Color temperatures are very important as we transition from incandescent bulbs to CFLs/LEDs. I am finding more problems with CFL and LED light sources than what is being portrayed. True color…