Philips Dimmable 26W G24q-3, 4 pin, 4000K Low Energy CFL Light Bulb PL PLC Lamp G24q-3, 4 Pin Cap fitting 4000K White 26W = 1800 lumens Brand New Energy efficient bulbs; 13,000 hours life span. This bulb is approximately 128mm high by 45mm wide. Energy saving lamps, also called compact fluorescents lamp (CFL) or low energy bulbs, saves energy by using the same technology as a fluorescent tube to generate equivalent light outputs to a conventional tungsten filament bulb but with a significantly lower power requirement. Due to the technology used they also offer huge increases in life expectancy over conventional lamps. The marked wattage of all energy saving lamps is much lower than the equivalent conventional bulb therefore costing less per hour. Price is VAT inclusive - VAT invoice dispatched with goods.