Q: I have a client with 4000K LED tape light on top of his cabinets. I need to make it look like 2700K, but I have never dealt with gels or colored lenses. What would you recommend and how would I ...

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 of ...

The image illustrates how local electron-phonon coupling at the europium (Eu 2+) site drives the mechanism behind heat-induced redshift (HIR) and blueshift (HIB) in phosphor emission spectra. A ...