Long life 60,000 hour LEDs at L80 for reduced maintenance;Choice of four LED color temperatures;Choice of four lumen packages;Available in 2', 4', and 8' lengths;Heavy die-formed steel channel with 100% acrylic formed diffuser;Fully assembled fixture for quick installation;LED boards and driver accessible for future maintenance or upgrades;Modular replaceable LED components;Surface mount or suspended;DLC® (DesignLights Consortium) Qualified, with some Premium Qualified configurations - see www.designlights.org;Five year warranty (Terms and Conditions apply)