Polished Chrome 28W 3500K 2050 lm 10,000 hrs IP65 A Rated Lamp Included28W requires 1 x 28W GR10q 4 pin DD CFL (included). Fitting is rated at 28W maxThis luminaire is compatible with bulbs of the energy classes: A to E and is sold with a bulb of the energy class: APolycarbonate constructionCeiling or wall mounted: versatile fixingPolished chrome, matt silver or white decorative trimHigh frequency electronic ballast: instant start, flicker free operation, and prolonged lamp lifeRemovable gear tray with retaining strap: easy installation and maintenanceSuitable for bathroom useTechnical SpecificationNominal Wattage: 28WRated Wattage: 28WAverage lifetime hours: 10,000 hrsNominal useful luminous flux: 2050 lmRated luminous flux: 2050 lmLuminous efficacy (Lm/W) in 50Hz operation: 73Rated lamp Lumen maintenance: 2000hrs: ≥85%, 4000 hrs: ≥78%, 6000 hrs: ≥76%, 8000 hrs: ≥75%Rated survival factors: 2000hrs: ≥98%, 4000 hrs: ≥90%, 6000 hrs: ≥88%, 8000 hrs: ≥80%Lamp dimensions (H/W/D): 200x200x32mmCap type: GR10q 4 PinLamp Mercury content to an accuracy of 0.1mg: ≤3.5mgColour rendering index Ra: ≥80Colour temperature: 3500KAmbient temperature required to achieve maximum luminous flux: 25°CIs this product dimmer compatible?: NoBallast EEI: A2Lumens per watt: Up to 73 lm / WWeight (kg): 1.573TSI Code: 396856227Technical Specification:Colour Temperature: 3500K Colour: Polished Chrome Wattage: 28W Lumens: 2050 lm IP Rating: IP65Weight: 1.573Kg