Bolayu 3500 Lumen 5 Modes CREE XM-L T6 LED Torch Powerful Flashlight Lamp & 18650 Black Aluminium Alloy Material: Aluminum Alloy. Lumen: 3500 Lumens. Non-thermal radiation, safe and stable, reliable, waterproof. Anti-reflective aluminum alloy coating makes it durable for long-term use. Perfect suitable for household, outdoor activities, hiking, night fishing, camping. Lifespan: 100000 Hours. Dimensions: (5.04 x 1.10 x 0.91)" / (12.8 x 2.8 x 2.3)cm (L x W x H).