SG-Thumb II is our smallest and lightest usb rechargeable bike headlights we have ever produced. The headlight weighs only 55g and its size is as tiny as thumb finger. It’s with USB rechargeable battery pack, IP65 waterproof, shockproof and four mode settings. Overall, it’s a compact light for durable usage and outstanding performance.

Specifications:

LED Lamp: CREE XM-L2 U2 LED

Luminous flux: 1000 Lumens

Modes: Four modes: 10%, 40%, 70%, 100%

Reflector: Vacuum plating orange-peeled Aluminum Reflector

Torch Body: Aerometal, CNC process and Anodic oxidation surface treatment.

Switch: Mid click

Battery : 4.2V, 4400mAh lithuim rechargeable battery pack

8. Waterproof Design:

*With O-rubber seal ring

*waterproof battery from raining

Input of light: 4.2V, usb cable: 5V, 1A

Battery life: Can be charged more than 500 times

Size: 4.5*3.4*2.5cm

Weight of light：55g (0.5kg/set)