This integrated LED ceiling panel has a long life, maintenance free operation of over 40,000 hours.It has a durable steel construction with a hard-wearing phosphate surface treated for corrosion resistance and flame resistance.Emits a bright 3300 lumens of cool white light, perfectly suited to office environments.Cold-rolled steel construction. Phosphate surface treated for corrosion resistance, flame resistance and wear resistance.Instant full light. Aluminium reflector with prismatic diffuser, anti-glare with UGR