This is a branded 18-inch 15w T8 Triphosphor Fluorescent Tube, available in all colours from Warm white, Standard white, Cool white and Daylight. The 15w T8 Fluorescent tube boasts a lumen output of 950 lumens and a 15,000-hour average lamp life. The T8 tubes are suitable for all stores, warehouses, factories and other large industrial sites as well as public buildings and spaces. T8 tubes can also be used within household applications and garages. Dimensions: 438mm (L) x 26mm (D) General Characteristics Wattage: 15w Lumens: 950 Lumens Cap/Base: G13 Diameter: 26mm Length: 438mm Cap to Cap (L): 451.6mm Colour (K): 2700/3000/3500/4000/6500 CRI: 85 Avg. hours: 15,000 Dimmable: Yes Box Quantity: 25 Energy Rating: A/B Brand: GE/Osram/Philips/Sylvania