Design: F MarkFlush-mounted or surface-mounted using accessories, low profile 35 mm height, direct LED luminaire, 592x592 mm for mounting in visible T-rail ceilings or 599x599 mm for concealed ceiling systems. With unique energy efficiency (up to 114 lm/W), collimated TIR optics with angled illuminated edge made of sheet steel. Precise low unified glare rating (UGR) <19 from clear PMMA, ensuring a perfectly lit workplace. Quick connection to electronic driver kit, not dimmable, 1–10 V dimming or DALI/SwitchDim (not included – ordered separately). Supplied with 3000K or 4000K.