The Circular T9 Fluorescent Tube is an alternative to conventional strip lighting enabling the use of slender and shallow ceiling and wall mounted fixtures. This 60 Watt Cool White G10q lamp has a diameter of 400mm and boasts an impressive lamp life of 10000 hours. Circular tubes are ideally suited to ceiling and wall mounted fixtures in commercial and domestic applications. This product is a tube only and requires a fluorescent tube unit to operate.