Adjustable Wattage Design Each 2x4 led flat panel light allows 40W/50W/60W selection, optimizing energy use without sacrificing brightness. 4 Color Temperatures in One Panel 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 ideal for variable brightness environments. Easy Lay-In Installation This 2x4 led flat panel light installs directly into standard T-bar grid ceilingsno special tools required. Commercial-Grade Build These 2x4 led flat panel lights are ETL listed, long-lasting, and easy to install in standard grid ceilings.