This is a 3.5w energy saving led striplight designed to replace normal 221mm 30w incandescent striplights. They are typically used in picture lights, shaving lights, cabinet lighting and general display fittings. Powered directly from 240v mains supply means you can directly swap them into any incandescent fitting that accepts a 221mm lamp. Specifications of the lamps are as follows: Dimensions: L221mm x D26mm Cap Type: S15 Colour: 2700k (warm white) Lumens: 350 Rendering Index: 80 Lamp life: 15,000 Hours Brand: Energizer