This is an Energizer high output 5ft (1500mm) 22w LED tube with a frosted finish in colour 4000k - cool white. These tubes are a direct retrofit for old 58w T8 or 65w T12 fluorescent tubes in switch start fittings as they come complete with a Free LED Starter. All you need to do is simply remove the old tube and starter and replace with the LED tube and starter supplied. They can also be used in high frequency fittings, by bypassing the control gear and wiring the fitting live and neutral to one end only. These LED tubes can offer energy savings of up to 66% compared to their T12 fluorescent equivalent and are often used in environments like offices, schools, shops and warehouses as well as in domestic applications such as kitchens and garages. This Energizer tube offers the following: - 2000 Lumens - Full Glass Design with Protective Shatterproof Coating- Easy Replacement & Flicker Free Design- Even Light Distribution- True Retro Fit- IC Drivers- Includes a Free LED Starter- 3-year warranty included