The EPA targeted residential lighting because of the large efficiency potential offered in a market where technology has not changed significantly for generations. The lighting specifications went beyond identifying efficiency standards. They also targeted consumer barriers that have slowed penetration of efficient residential lighting. For example, they require that indoor models start immediately and operate without the low-level hum typical of older fluorescent fixtures. Outdoor fixtures automatically shut off during daylight hours, and some models are equipped with motion sensors.
Some consumers still confuse efficient lights with old-fashioned fluorescent tubes.
But the eerie blue-green glow given off by the old tubes is a thing of the past. To use the Energy Star logo, manufacturers that do not include lamps in the package with the fixture must agree to include color temperature guidance on the package. This is meant to help each consumer identify the appropriate lamp, based on color rendering and temperature, for a given room. To help convince consumers that these fixtures truly represent a new generation of lighting, Energy Star models come with a warranty. All models are guaranteed for two years against defective housing and electronics, and outdoor models also have a one-year customer satisfaction guarantee.