MiracleLED 604016 Rough Service Long Life Harsh-Environment Bulb, Replaces 100W, Cool White, 4-Pack, Starts immediately, stays bright and safe for years Costs only 12 cents per 100 hours of continuous use Garage door openers shake regular bulbs to death -- but not this vibration and shock resistant LED No heat  safe for any Fixture Does not produce hazardous waste MiracleLED technology allows a 12W bulb to replace old 100W 130V incandescent bulbs.