HM ring is a small dark light anti-glare ring. Yes its anti-glare producing anti glare modular fitting. The best in its class, architects choice, HM ring is made of aluminium and black nickel ring with polished poly carbonate with extra shiny nickle black finish. It helps in giving an anti-glare effect since its a deep recessed ring used with MR16 module or lamps. FIRELLUX provides both the HM ring and optional module ranging all wattage from 7W to 18W.