PRODUCT DESCRIPTION:The LED RKL Retrofit Kit Strips are economy-level replacements for both 2'x4' and 2'x2' recessed troffers in replacements for both 2'x4' and 2'x2' recessed troffers in existing drop-in ceilings. The kits are easily field installed using simple hand tools with minimum modification to the existing housings.FEATURES:• Twin aluminum carrier angles for added heat sinking and optic diffusion• 120- to 277-volt class 2 UL driver included• 45 deg. optic angle of each strip for beam spread• 4 LED FR4 light strips for 2’x2’• 4 LED FR4 light strips for 2’x4’• 0-10V dimming standard• All components are discreet parts allowing for sustainable repair and upgrade cycles• 50,000 hour life at L70 standards• Uses thermal dot technology for easy warranty controlCONSTRUCTION:• 1 x 1 x .06 aluminum angle carriers• Sealed driver• Completed wiring harness with Tyco quick connection plugs• LED strips screwed to carrier angle for field replacement if needed• < 3 pounds for easy handling over head