The Hi-Tech Lamps part number CF7S/827-U is a 7 watt (7W) single tube compact fluorescent lamp made by Ushio. It has a maximum overall length of 138mm with a G23 two pin CFL base. The average lifetime is 10000 hours, it has a color temperature of 2700 Kelvin (2700K), with a nominal luminous flux of 400 lumens (400 lm). It is intended for operation using a standard CFL ballast. This lamp is also known as Ushio CF7S/827 and 3000063.