Description:
This bright head wear bicycle light is specially designed for safety cycling. It is designed with 3 lighting modes， USB charging， adjustable and high elastic head strap， adjustable angle design and waterproof body. All this make it a perfect choice for mountain cyclists， city bikers and outdoor adventurous riders.

Parameter:
- 3 lighting modes: high， low and flash
- Continuous working time: 3 - 4 hours
- Charging time: 2 hours
- Battery: 2 x 6800mAh 18650 battery ( not included， charged by USB cable )
- Brightness: 400 lumens
- Waterproof: IPX - 6
- Material: high-quality aviation 6063 aluminum alloy
- Maximum head circumference: 84cm / 33.1 inches ( elastic head belt design ) Power Supply: Battery 0.245 Package weight: 0.287 kg
Product Size(L x W x H): 9.00 x 8.00 x 6.00 cm / 3.54 x 3.15 x 2.36 inches
Package Size(L x W x H): 11.50 x 10.70 x 9.50 cm / 4.53 x 4.21 x 3.74 inches Package Contents: 1 x Bicycle Head Wear Light， 1 x USB Cable IPXX Rating Chart

IP Code
The IP Code (or International Protection Rating， sometimes also interpreted as Ingress Protection Rating*) consists of the letters IP followed by two digits and an optional letter. As defined in international standard IEC 60529， it classifies the degrees of protection provided against the intrusion of solid objects (including body parts like hands and fingers)， dust， accidental contact， and water in electrical enclosures. The standard aims to provide users more detailed information than vague marketing terms such as waterproof.

The digits (characteristic numerals) indicate conformity with the conditions summarized in the tables below. For example， an electrical socket rated IP22 is protected against insertion of fingers and will not be damaged or become unsafe during a specified test in which it is exposed to vertically or nearly vertically dripping water. IP22 or 2X are typical minimum requirements for the design of electrical accessories for indoor use.