Feature: 1. Made of aluminum alloy, has better heat dissipation performance. Sandblasting treatment on the surface adds texture to the product. 2. Humanized clip‑on installation, quick installation is not troublesome. 3. It can be used continuously for about 3 hours after fully charged (super bright mode). 4. Suitable for various outdoor activities, suitable for mountain biking, commuting and outdoor adventures. 5. Easy to use. Press the power button to open, each time press to switch one effect, cyclic operation, long press the power button to close. Specification: Item Type: Bike Light Material: Aluminum Alloy Color: As Pictures Shown Weight: Approx. 190g/6.7oz Function: Bicycle warning light, bicycle auxiliary lighting Specifications: LED chip, 300lm, 2200mAh lithium polymer battery Light: Monocolor white light Features: Support USB interface, easy to charge Mode: Constant bright/flashing How to use: Press the power button to open, each time press to switch one effect, cyclic operation, long press the power button to close. Package List: 1 x Bike Light 1 x Bracket 3 x Gasket 1 x USB Cable 1 x Wrench 1 x Manual