The Hi-Tech Lamps part number F17T8/850-U is a 17 watt (17W) fluorescent tube lamp made by Ushio. It has a maximum overall length of 610mm (24in). 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 1400 lumens. It is also known as Ushio F17T8/850 and 3000262.