Our high definition bulbs are an improved, energy-saving LED that enhance the appearance of colors. Experience the difference with bolder colors and enhanced contrast vs our standard LED bulbs. Relax HD light offers a warm, soft white light ideal for comfortable moments and cozy spaces. Use relax HD light in spaces like bedrooms, family rooms and dining rooms.Rated to last 13 years based on 3 hr/day useEach bulb costs 0.48 dollars annually to operate based on 3 hr/day use at 11 cents per kWhDimmable and works with most dimmer switches