​GL LED Architectural LED Linear Up Lights provide single-direction uplight for indirect illumination—emitting upward only to raise ceiling luminance and a sense of openness while reducing direct-view glare and screen reflections. They support continuous-run linear uplight layouts to create a uniform ceiling wash, and share the same design language as our downlight linear fixtures for cohesive suspended, wall-mounted, or recessed installations. 0–10V dimming, CRI 90+, and CCTs 3000K / 3500K / 4000K. Ideal for open offices, meeting rooms, corridors and atriums, hotel lobbies。