Combining durability with energy efficiency, the Festival S-11 LED bulb is a revolutionary solution for designers of lighting everywhere. This lamps unique virtual filament brings the look and feel of incandescent to the energy efficient world of LEDs. Festival S-11 bulbs operate on standard, worldwide voltages (both AC and DC). Utilizing gapless manufacturing, the Festival S-11 is rated for both indoor and outdoor use. And it's use of fire-resistant polymers means the S-11 is also the choice for the safety conscious. These lamps last beyond 35,000 hours many, many times more than traditional, incandescent lighting. That means less bulb changing and large reductions in maintenance costs. Ultra-low power consumption and free of heavy metals like mercury!