LED ceiling light A20-SQ with emergency light - can also be used as wall light This simple, square LED luminaire can be used not only on the ceiling but also as a light source on the wall. Its discreet appearance with the silver-grey powder-coated die-cast aluminium housing and the satin acrylic cover fits in with many interior design options. A20-SQ is a real jack-of-all-trades when it comes to basic and area lighting for offices, stairwells, company corridors etc. - Delivery includes non-dimmable control gear - battery operated emergency light: burn time 3 h - Light distribution: 90 % direct, 10 % indirect (symmetrical) - Color location tolerance (MacAdam): 3 - Average useful life (IEC 62717, Ta 25 °C): 60000 h L90B50 - Connection terminal: 5 x 2 x 2.5 mm² (plug-in terminal) - Suitable for through-wiring Energy efficiency class:A+