This is a Bright Source 4ft Twin 40w LED Batten fitting with PIR movement sensor in cool white, designed to replace traditional 2 x 36w T8 Fluorescent tube fittings offering energy savings of 44% 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 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. The batten also boasts a lumen output of 4800 lumens meaning it has an extremely high lumen per watt. 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 Constructed with a robust steel powder coated white body and polycarbonate lens with an integrated Epistar LED Board. Dimensions: 1200mm (L) x 60mm (W) x 74mm (H) This product comes with a 5 year warranty for peace of mind. Please view our related products for Emergency options. General Characteristics Wattage [W]       40 Voltage [V]         220 – 240v Lumens [lm]       4800 IP Rating [IP]     20 Colour [K]          4000 (Cool White) Avg. Life [hrs]    30000 Part code           233015