INDIRECT BACKLIGHT - this square LED ceiling lighting offers as a special feature indirect ceiling backlight to create a warm and welcoming atmosphere for any interior: living and dining room, lounge, kitchen, hallway, corridor and bedrooms. LIGHTING FEATURES - the built-in 18 Watt LED board offers a beautiful neutral day white light of 4000 Kelvin and an outstanding illumination of 2400 Lumen. The most recent LED technology offers an average life span of about 25.000 hours and energy savings of up to 80% compared to conventional bulbs ULTRA-FLAT - a discrete and powerful ceiling lighting fixture of only 28mm / 1.1inches depth. A perfect solution for a minimalist design and low ceilings. Please note this light is not dimmable. MOUNTING - the LED board is mounted directly to the ceiling by 3 screws, the sturdy resin cover is fixed with a convenient bayonet fastening. Dimensions: The square office ceiling lamp measures 293x293x28mm / 11.5x11.5x1.1in. The ceiling lamp LED creates a beautiful atmosphere in your home