Eterna 6W T4 230mm Fluorescent Bulb The Eterna 6 watt T4 fluorescent 3400k white tube, 12 mm diameter with 230 mm including pins and 220 mm excluding pins is specifically designed for use with Eterna brand fittings. Please note fluorescent tubes do not come in standardized lengths so please make sure your tube is the same. Suitable for use with electronic ballast. The T4 G5 fluorescent tube offers longer life, improved energy rating and high-quality life. Can be used for under cupboard light fittings, pelmet or emergency lighting. Technical Specification: Average Lifetime Hours: 10,000 Lumens: 370 lm Colour Temperature: 3400K Dimmable?: No Weight: 0.034kg Dimensions: Lamp Including Pins: 230mm Lamp Excluding Pins: 220mm You may also be interested in the 10w version of this bulb.