square recessed luminaire with wide range of applications and very low installation depth, outstanding ease of maintenance, no UV and thermal emissions, thermal management via housing, integrated high-tech lenses made from acrylic glass with black louvre optics for high luminous efficiency and glare-free lighting, symmetrical and wide-beam light distribution, housing made from sheet steel, tool-free ceiling mounting via quick-action clamping springs (automatic adjustment of the ceiling thickness), luminaire and ballast permanently connected via cable (length: 500 mm), ballast ready for mains connection, ballast (LED converter DALI, dimmable) included (external placement) Note: Required installation space: L x B x H = 250 x 250 x 50 mm. Lamp: LED Modul | 830 | CRI 80 | 3000 K Lifetime: L90 B50 50.000 h / L80 B50 100.000 h / L80 B20 50.000 h EPREL light sources: 1226235 beam angle: 80° Protection class: II Type of protection: IP20 Standards: CE,RoHS Ceiling thickness: 1 - 15 mm Installation depth: 50 mm Cut-out: 90 x 90 mm Dimensions (LxBxH): 106 x 106 x 27 mm Weight: 0.408 kg Colour: silver (article no. 665599), black (article no. 665600), white (article no. 665601) Accessories: ZB-OR DONGLE Organic Response IR dongle kit ZB-OR GATEWAY Organic Response IoT Gateway Cascade Series ZB-OR-R SENSOR Organic Response sensor for recessed mounting Manufacture: LTS Type: CHOCM-R 220.830.80.02/DALI