Maximum luminous flux: 2000 lumens. Range: 300m. Switch: central control switch. Gear mode:High-Medium-Low-Double click to enter Turbo Mode-SOS Maximum lighting time: 8H Charging port specification: Type-C Fast charging (Display green when fully charged, Low power display in red) Anti-fall: 1.0meters. Net Weight: 85g Gross weight: 156g Material: Aluminium alloy About batteries: Using 18350 batteries (800Mah) Product size: 80MM * 30MM Lamp bead model: 3 * SST20 super bright lamp bead 5 Lighting Modes: Strong Light - Medium light - Weak light - Double click to enter TURBO Modes-Long press SOS Strong Light: 1800LM Middle Light: 1000LM Low Light: 250LM Double click to enter TURBO Modes: 2000LM SOS (Press and hold for 3 seconds in any gear to enter SOS mode)