Upgrade the lighting in your home or business with sunlite energy saving led bulbs. With an a19 shape and medium e26 base they are an energy efficient replacement for 100 watt incandescent and cfl bulbs while only using 15 watts of electricity. And unlike fluorescent bulbs, they are instant-on at full 1600 lumen brightness. With an average life of 25,000 hours these bulbs the estimated annual energy cost is a low $1.81 based on 3 hr. /day use at $0. 11 per/kwh. Perfect for any fixtures, including wall sconces, ceiling lights, vanity lights, closet fixtures, table lamps, garage door openers, porch, patio and pole lights. Save more energy in an efficient way with this led dimmable bulb. These bulbs are ideal for both residential and commercial use. These bulbs contain no mercury or other harmful chemicals. They are energy star certified, and ul listed for damp location use