This is a Bright Source Emergency 4ft Single 23w LED Batten Fitting with PIR Sensor in cool white, designed to replace traditional 1 x 36w T8 Fluorescent tube fittings. With an average life span over 30,000 hours, this averages at over 10 years based on normal use, significantly reducing maintenance costs. The batten also boasts a lumen output of 2760 lumens meaning it has an extremely high lumen per watt of 120. The batten fittings are often used in warehouses and factories as well as being used to light indoor spaces in applications such as corridor lighting or office areas. Constructed with a robust steel powder coated white body and polycarbonate lens with a integrated Epistar LED Board. This LED batten fitting comes complete with PIR movement sensor which can be adjusted between 30s/3min/5min/8min before switching the fitting off if there is no movement which helps save money on energy bills. The sensor can also be used to turn the fitting on when the room becomes too dark(>10lux). 6-8 Metre sensing distance. All the specification of the standard batten is still applicable in normal maintained running mode. The emergency backup pack is invisibly integrated into the body of the batten. These fittings come complete with LED Emergency inverter, rechargeable emergency battery stick and Green LED indicator. This product comes with a 5 year warranty for peace of mind. Please view our related products for Emergency options. Dimensions: 1200mm (L) x 60mm (W) x 74mm (H) General Characteristics Wattage [W] 23 Voltage [V] 220 – 240v Lumens [lm] 2760 IP Rating [IP] 20 Colour [K] 4000 (Cool White) Avg. Life [hrs] 50000 Part code 233008