Kichler 4U series LED light bars are a simple, energy-efficient choice for under cabinet lighting. They offer 4x the bulb life as 12v xenon fixtures, or 16x the life of 120v xenon lights! 4U series light bars can be installed as direct-wire fixtures at the rear of your cabinets or as part of a modular system at the front of your cabinets. Features: Durable powder coat finish Quality, diffused light output Available in 2700K (warm white) or 3000K (pure white) color temperatures Dimmable with standard wall dimmer switches Can be controlled with an on/off switch in the corner of each unit Install as a direct wire fixture or as part of a modular system 3-year residential warranty Dimensions: Length: 8" Width: 4 1/2" Height: 1" Electrical Specifications: Light Type: LED Wattage: 4 Voltage: 120V Lumen Output: 177 Color Temperature: 2700K Color Rendering Index (CRI): 93 Average LED Life: 40,000 Hours Accessories: Power: All 4U series light bars can be powered in three ways. You can direct-wire the fixture to your house's power, use the 10570 wire module to create a modular system, or use the 6UCORD plug-in cord if a wall outlet is convenient. Connecting Multiple Fixtures: Light bars can be linked end-to-end, or you can use an interconnect cable in the appropriate length. The part numbers are: 10571 (9"), 10572 (14"), 10573 (21")