Features: Waterproof: IPX-7, does not support diving use. The internal wiring uses a high-efficiency booster circuit with a wide operating voltage, which can maximize the use of the battery. High-performance electronic switch,the brightness mode can be changed with a light switch, low-medium-high, and hidden strobe. Aluminum alloy structure, wear-resistant anodized treatment, deep heat dissipation. Long press the switch for more than one second to enter the strobe mode. Specifications: Black color Material: Aluminum Alloy Lamp Type: t6 LED Number of Issuers: 2 Bin Color: Cold White Working Voltage: 7.2 8.4v Power Source: 4x18650 battery in a pack Current: 2500MA Real Luminous: 8000lm Number of Modes: 4 Arrangement mode: low> mid> high> strobe Memory Mode: No Switch Type: double clicky reverse Switch Location: Tailcap Lens: Plastic Filter lens Reflector: Smooth Aluminum Beam Range: 200m Dimension: lxwxh: 42mm x 50mm x 30mm Type:A/B Note: Type A does not have a battery and needs to be connected to a power supply; Type B is an American plug and includes a battery. Please confirm carefully before buying. Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Pcs bicycle front light.