The Hi-Tech Lamps part number F25T8/850-U is a 25 watt (25W) fluorescent tube lamp made by Ushio. It has a maximum overall length of 915mm (36in). This lamp has an average lifetime of 24000 hours. It produces a color temperature of 5000 Kelvin (5000K) with a color rendering index (CRI) of 86 and an initial output of 2250 lumens. It is also known as Ushio F25T8/850 and 3000266.