LED Bike Light Set, USB Rechargeable Bike Light Set with 3 Light Modes, Dual LED Light Beads Mountain Bike Light, Bicycle Light Set for Night Rider, Cycling and Camping Features: PC engineering glass lens. The outer casing is made of aerospace aluminum and CNC finished. Anti-wear treatment of surface military three-stage anode hard oxidation. Aluminum alloy pressure ring effectively protects the core of the flashlight head Specificaitons: Material Aluminum Alloy + ABS Color:Black+Orange Size(L×W×H):Approx.44×34×24mm Light source:T6 LED Light life:100,000 hours. Luminous flux:800-1000LM Light mode:Low light,Medium light,High light (long press flash) Switch type:Waterproof push button switch (with battery display) Photographic distance:100 m Package included: 1 x T6 Bike Light 1 x USB Cable 2 x Rubber Ring Note: 1.Please note that this item has not built-in battery and needs to be used with power bank. 2.If the battery is not placed for a long time. The self-discharge of the battery will deplete the power and cause over-discharge. Therefore, please keep the charging frequency at least once a month. 3.When the lamp indicator shows that the battery is low, then after the auto is turned off, please do not turn on the lamp again, otherwise the battery may be damaged.