Up to 75% energy savings: Hykolity's 4-foot 40W LED surround light delivers 4000K neutral white light with over 4400mm resistance, replacing two traditional 32W fluorescent bulbs and instantly reducing electricity bills by 65%. Unique design: Featuring an impact-resistant prism acrylic lens design to maximize light output and distribution, and employing ultra-efficient LED technology to help reduce energy consumption and costs. No bulb replacement required. Hardwiring required: This 4-foot LED surround light requires direct wiring to your electrical system. It has no plug. Professional installation is recommended. Incompatible plug-in setup. Wide applications: The 4-foot LED workshop light is suitable for garages, offices, workshops, workbenches, kitchens, basements, closets, storage rooms, warehouses, corridors, etc.