A very slim LED light for wall and ceiling mounting, square. Non-dimmable LED driver with 3-hour emergency light function and manual testing. Housing: polycarbonate (PC),. Diffuser: polycarbonate (PC), opal. Protection class II, IP65, IK10. Including LED module with 4000K Suitable for direct wall or ceiling mounting. Through-wiring is possible with cables of up to 2.5 mm². BESA compatible. Dimensions: 277 x 277 x 58 mm Light output: 16.3 W Light luminous flux: 1950 lm Light luminous efficacy: 120 lm/W Weight: 1.13 kg Self-sufficient emergency lights require long-lasting batteries. This product has a robust high-tech lithium iron phosphate battery with a 3-year guarantee. (Valid in accordance with and to the extent set out in the applicable manufacturer's warranty on Thorn products, which is available at http://www.thornlighting.com/en/products/5-year-guarantee/5-year-warranty/terms-of-guarantee_en.pdf. The battery warranty is void if the battery is not installed until three (3) months after delivery EXW (Incoterms 2010).)