Square LED surface-mounted light in IP54 with opal cover. Light output: 18.1 W, with LED converter. LED lifespan of 50,000 hours until light output drops to 90% of the initial value. Color tolerance (initial MacAdam): 3. Luminous flux: 2250 lm, luminous efficacy: 124 lm/W. Color rendering index Ra > 80, color temperature 4000 K. Despite the highest quality controls, noticeable color differences between the lights may occur when applied in clusters due to the defined tight binning. To achieve a homogeneous appearance, it is recommended to consult a lighting advisor when planning to install in a cluster. Integrated LED module with ESD protection. Housing made of white plastic, injected opal polymethyl methacrylate cover with impact resistance: IK03. High-quality continuously foamed hydrophobic polyurethane seal; special cable routing for IP54; mounting using included slotted washers. Permissible ambient temperature: -20 °C to +25 °C. Light is halogen-free wired. Note: For use in chemically aggressive environments or outdoors, please consult your advisor. Dimensions: 310 x 310 x 90 mm; weight: 1.9 kg.