Recessed luminaire for installation in ceilings with exposed grids only (not suitable for walls). Direct light distribution. Opal diffuser made of frosted methacrylate for enhanced light transmission and uniform illumination. Luminaire housing made of steel, finishes: white (RAL9003) or silver (RAL9006) coated. Optional drivers: One-step switched or 1-10V dimmable. Evenly spaced premium LEDs provide uniform illumination combined with highest efficacy standards. Factory-programmable drivers offer 2 standard output level. Standard color temperature: 3000K, 3500K or 4000K. CRI>80. On request: Other color temperatures, special surface colors, CRI>90. 5-year warranty on all electrical parts. 80% of initial light output for 50,000 hours. Direct access to integral drivers and LED circuit boards ensures hassle-free installation and maintenance.