 White light emitting diodes, LEDs, are expected to replace traditional light sources such as fluorescent lights and incandescent bulbs due to their increased efficiency and longer lifespans. LEDs use blue or near ultraviolet, NuV, light emitting diodes, LEDs, and phosphors to produce white light. Blue and NuV LEDs emit light at different wavelengths, which must be combined with the correct phosphors to create white light. Phosphors absorb the light from the LEDs and remit it at other wavelengths, resulting in white light. The selection of the appropriate phosphors is critical to ensure the desired color rendering index and color temperature. This article was authored by Chowanya, Ruzher Liu, Chunchie Lin, and others.