The StratusDISC adjustable is an ideal choice for all office and corridor lighting. The ultra slim profile can be placed into the slimmest of voids and the adjustable back means it can fit in any size hole in the ceiling and it can be easily surface mounted as well. The back lit technology and high power SMD LEDs offer an even, superior light output, with no dark spots and reduced glare.Complete with LED driver 18W LED module (SMD 2835 CCT) CCT (Included) K: 3000/4000/6000 Lm: 1800 Lm/W: 100 IP44. Suitable for bathroom zone 2 Suitable for bathroom zone 1 if used in conjunction with a 30MA RCD Proj: 18mm Dia: 220mm Class 2 Cut hole Dia: 50-180mm Dimensions: 18mm projection x 220mm diameterProduct Material: Aluminium & polycarbonateLight Source Description: 18W LED module (SMD 2835 CCT) CCTLamp Category Primary: LED moduleLamp Included: YesIP Rating: IP44Dimmable: Non-dimmableVoltage: 220-240VProduct Lumens: 1800Product Kelvin: 3000/4000/6000Product Energy Rating: Energy efficientProduct Control Gear: IncludedProduct Control Gear Used: LED driverProduct Cut Hole Shape: DiameterProduct Cut Hole Size: 50-180