A homeowner primer on LED lighting

Since the federal government mandated in 2007 that light bulbs needed to be 25 percent more energy efficient than incandescents, the industry has solved the problem by creating consumer-friendly light-emitting diode, or LED, bulbs. It used to be that all you needed to know was whether your lamp took 60, 75 , or 100 watts. Homeowners now are faced with learning a whole new lingo. The most common complaint against LEDs, and I share this one, is that the light emitted is too white. Correlated color temperature, or CCT, is a measure of how white the light is.