1. Non-conducting nylon polymeric material with high-strength and toughness, chemical corrosion resistance.
2. LED light and Alluminum alloy
3. Anti-shaving coating polycarbonate lens，unbreakable.
4. LED digital display screen, showing you how much electrity has left.
5. Cree R5 LED with a life span of 50,000 hours. If the brightness reaches 240 Lumen, it can work 9 hours.
6. Adopting lithium battery of Panasonic which can be charged 1200 times. USB charging.
7. O-ring: water&dust-proof
8. Design of anti-hand slip, easy to hold