MAGLITE MAG-TAC LED TRM1RA4 RECHARGEABLE SYSTEM MATTE BLACK 543 LUMENS WITH FLUKE LOGO Constructed of aluminum alloy WITH FLUKE LOGO Sutra LED technology high performance powered by a high capacity Lithium Iron Phosphate (LiFePO4) rechargeable battery 543 Lumens BEAM DISTANCE 181M (594 FT) 4 Modes: Momentary, Full Power, PowerSave and Strobe