Recessed LED luminaire Design: LED-recessed luminaire for recessed ceiling mounting. Rigid luminaire housing in white powder-coated sectional extruded aluminium (RAL 9016). End caps made of die-cast aluminium. LED modules formed as a flat board. Mid-power LEDs for even illumination and maximum efficiency. LED driver integrated in luminaire housing. Luminaires suitable for through wiring. Protection rating IP65, protection class II. Ten different resistances for ten different luminous flux levels can be set for the luminaires using an integrated flexible resistance (ResFlex; Factory setting: maximum light output). Colour rendering in index Ra >= 80, colour temperature 3000 Kelvin (830), 4000 Kelvin (840) Luminaires with flexible resistance (ResFlex). Electronic converter for LED, 220-240 Volt, 0/50-60 Hz and internal connector block. Suitable for direct voltage operation and use in central battery systems, 220-240 VDC. Mounting: Mounted by the customer. Protection rating seal included. Note “ball resistant“: RIDI luminaires with this sign are produced to the appropriate mechanical and photometric standards demanded for sports hall lighting. They comply with ball-resistant safety requirements according to DIN 18032, part 3. M125-E ... S Satin finish on cover, made of polycarbonate with wide beam, symmetrical prismatic profile, vandal-proof. Impact resistance IK09.