This 13 watt bulb is manufactured by Ushio and a single tube 2-pin shape. It has a rated life of 10, 000 hours, a maximum overall length of 7.08 inches and lumens of 760. This fluorescent bulb has a diameter of 0.50 inches, a color temperature of 6500k and a color rendering index of 85. It also uses a base of GX23 and an abbreviation name of CF13S/865.