For higher efficiency and lower maintenance cost, compact fluorescent low bay lights are a smart choice. They use 75 percent less energy than traditional incandescent light bulbs. A fluorescent light will burn brightly for up to 10,000. Regular incandescent light bulbs only burn for 800 to 1,500 hours. This greatly reduces the need for replacement bulbs and saves you money. These fluorescent light fixtures operate at 120-277 volts, with an output of 4300 lumens. An acrylic prismatic reflector is included that focuses the light. Our compact fluorescent low bay lights are suitable for ceilings between 10 feet and 18 feet high.