Material: Aluminum Color: Black Size: 71 x 71 x 150 mm Weight: 459 g (±5%) Bulb: 31 LED Beads Battery: 3500 mAh Lumens: High - 3200 Lm | Medium - 2200 Lm | Low - 600 Lm Charging time: About 6 hours Working time: 4 - 5 hours Function: High - Medium - Low - Strobe - SOS Type-C port Five-speed mode - Five-speed mode: Strobe - High - Medium - Low - SOS, with an instant strobe function activated by a long press of three seconds on any setting. Comes with type C fast charging port. Battery indicator - the battery level is monitored with green for full power, and red for low power. With basic level of water resistance suitable for use in the rain but is not designed for submersion in water or for underwater use. Aluminum alloy material - Ergonomic grip, high-density aluminum alloy, corrosion-resistant, shockproof, and pressure-resistant. Lithium-powered - one 26650 lithium batteries, providing a long-lasting battery life of 3500mAh.Includes over-voltage, over-discharge, and over-charge protection.