Smart temperature control + low voltage protection. Automatically downshifts when the lamp bead temperature exceeds 70C,and shuts off power and turns off when the temperature exceeds 100C. When the battery level is below 10%,only two levels of adjustment,220 lumens/100 lumens,are allowed. When the battery voltage is too low,it automatically cuts off power to protect the battery Equipped with a 3000mAh large-capacity lithium battery,enhancing endurance,stable and durable use. Type-C charging interface for faster charging speed and compatibility with more charging methods High-transparency acrylic lens,lightweight,strong impact resistance,clear and soft light,and even light distribution with internal reflective mirrors 90 wide-angle lighting to improve visibility during night rides IPX6 waterproof,capable of handling adverse weather conditions with ease Lifting installation,simple operation Specifications: Model: RHL 800 Material: aluminum alloy Weight: about 103g Lamp bead model: 3535 10W Charging time: about 3.5h Mode: 5 modes Range: 200m Waterproof level: IPX6 waterproof Function: IPX6 waterproof,intelligent temperature control,type-c charging Package included: 1 x Bicycle Front Headlight 1 x Bolt 1 x Cable