Selectable Power Output This 2x4 led flat panel light lets you choose from 40W, 50W, or 60W, offering maximum flexibility for lighting upgrades. 4CCT Built In Easily select 3000K/4000K/5000K/6000K to match your preferred lighting ambiance before installation. Smooth Dimming Feature Works with 0-10V dimmers, making this 2x4 led drop ceiling light fixture panel ideal for variable brightness environments. High-Efficiency Performance Generates up to 6600 lumens of uniform light, perfect for upgrading lay-in fixtures. Commercial-Grade Build These 2x4 led flat panel lights are ETL listed, long-lasting, and easy to install in standard grid ceilings.