1Using 2 good quality LED beads, super bright, long service life is up to 100,000h. 23 common modes controlled by one button on the back of light: low, middle and strong, which can be switched according to your needs. 3Adopting premium 6063 aircraft-grade aluminum, anti-oxidation, resistant to corrosion and rust, high performance of stability and durability. 4IPX-8 waterproof scale enables you to use it on rainy . 5A perfect companion for night cycling, and it provides extra security for you.Features:Using 2 good quality LED beads, super bright, long service life is up to 100,000h. 3 common modes controlled by one button on the back of light: low, middle and strong, whichcan be switched according to your needs. Adopting premium 6063 aircraft-grade aluminum, anti-oxidation, resistant to corrosion andrust, high performance of stability and durability. IPX-8 waterproof scale enables you to use it on rainy . It is easily mounted onto the bike handlebar by using the rubber ring. A perfect companion for night cycling, and it provides extra security for you. Specification: Condition: 100% Material: Aluminum Color: Black Light Source: LED LED Quantity: 2 Brightness: 2400lm Lighting Distance: about 200m / 656ft LED Service Life: 100,000h Battery: 4 x 18650 Battery Pack(Included) Battery Capacity: 6000mAh DC Voltage: 8.4V Working Time: About 2 -3h Waterproof Sacle: IPX-8 Modes: Low, Middle, StrongCharger Plug: US Input Voltage: 100 - 220V Size: Approx, 42 * 60 * 38mm / 1.7 * 2.4 * 1.5in Weight: Approx. 409g Packing List: 1 x Bicycle Light 2 x Rubber Ring 1 x US Charger 1 x 18650 Battery Pack * Other terms on pictures are not included.