32w T9 Circular triphosphor fluorescent tubes with 29mm tube diameter. This 32w T9 Is identical to all market leading 32w T9 tubes. If you\'re replacing tubes with references such as L32w, FC32w or similar then this is a like for like replacement. With an average life of 10,000 hours it providers users with over 10 years estimated life. T9 Circular lamps are available in colours - Warm White = 830 and Cool White = 840. 32w T9 circular tubes have a G10q 4 pin cap. These circular tubes are boxed in 12\'s. General Characteristics Wattage [W] 32 Voltage [V] 230 Cap/Base G10q Bulb Shape Circular Bulb Diameter [mm] 299mm Colour Rendering Index (CRI) [Ra] 82 Rated Life L7 [h] 10000 Dimming Capability Yes