The T34 FAHE high-efficiency LED panel features adjustable wattage output and selectable color temperature. It is designed for recessed ceiling installation but can also be directly mounted to drywall using one of the available surface mounting kits. Measuring 2 feet by 2 feet, this ultra-economical panel achieves efficacies of up to 140 lm/W, surpassing DLC Premium standards. The Rab Lighting T34FAHE-2X2/E features include 30W/23W/17W field adjustable light output, 3500K, 4000K, 5000K selectable color temperature, battery backup will operate the fixture for 90 minutes if power fails and wired for 120-277V, formulated for high durability and long-lasting white finish.