This Robus branded circular LED bulkhead fitting comes with a built in colour selection switch on the PCB allowing the end user to select between 3000K (warm white) 4000K (cool white) or 6500K (daylight) colour temperatures. The ability to choose the colour makes this product versatile and suitable for almost any location. Common installations include public buildings communal areas sports centres corridors and many more. This particular model comes with an included 3 hour emergency battery which is designed to operate at 20% light output under power loss conditions (180 lumens). Using only 10 watts of power this 300mm diameter fitting is the perfect replacement for the old style 28W fluorescent 2D lamps.