This 3.5 watt A17 standard shape light bulb uses Archipelago's patented driver-free LED technology. Operating on AC (alternating current) instead of DC (direct current) the LEDs within this bulb require no driver to make a voltage conversion. This means the bulb's 50,000-hour life is not limited by the life of a driver! No driver also means the bulb is smaller than other LED light bulbs since a large aluminum heatsink is not needed. Use this wet location rated bulb to replace any 25 watt incandescent A-shape in decorative or standard lighting fixtures, indoors or outdoor.