This is a Osram 20w LED T9 Circular Tube in a 4000k Cool White colour to replace the 32w circular fluorescent tube. The 20w tube offers energy savings of 38% and a lumen output of 2000 lumens. These lamps are often used in domestic applications such as kitchens and bathrooms as well as offices and walkways. This circular tube has a G10q cap and is to be used in fixtures that have a ballast that\'s conventional (EM) or mains (AC).All you need to do is simply remove the old tube and starter and replace with the LED T9 tube and starter supplied. They can also be used in high frequency fittings, by bypassing the control gear and wiring directly to the mains. They have an average lamp life of 30,000 hours and a 2 year warranty to give the customer extra peace of mind and significantly reduce maintenance costs. Dimensions: 298mm (L) x 30mm (W) The Osram Reference: 4058075135482 General Characteristics Wattage [W] 20w Lumens [lm] 2000lms Cap/Base G10q Lifetime 30000 hours Dimmable No Beam Ang 123 Colour [K] 4000k Cool White