Gentos LED Headlight Head Wars GH-201RG. Maximum brightness of 550 lumens. This is a new, unopened item as I no longer have a use for it. Light source used: High-intensity chip-type white LED x 1 Brightness (approx.): 550 lumens (High mode) / 240 lumens (Mid mode) / 50 lumens (Eco mode) Luminous intensity (approx.): 7639 candela (High mode) / 3296 candela (Mid mode) / 673 candela (Eco mode) Batteries used: Dedicated lithium polymer rechargeable battery 3.8V 2,000mAh 7.6Wh or AAA alkaline batteries x 4 Charging time (approx.): 3.5 hours Battery life: Approximately 300 charge/discharge cycles Operating time (approx.): [Head unit] 7 hours (High mode) / 18 hours (Mid mode) / 78 hours (Eco mode), [Rear recognition light] 200 hours (continuous) / 200 hours (flashing) Beam characteristics: Focus control Beam distance (approx.): 175m (maximum) Protection class: Dustproof and waterproof (IP66 compliant) Drop resistance: 2m drop durability Body size (approx.): [Head unit] W59.3 x H43.2 x D37.2mm, [Battery box unit] W92.1 x H59.2 x D32.5mm Body weight (approx.): 180g (including batteries) Accessories: Headband with non-slip, Dedicated rechargeable battery, USB Type-C cable (50cm), dedicated AC adapter (5V/1A), helmet holder x 4