... lights Operation life up to 100,000 hours, never need replace Water resisitant, shockproof, and erode prevent design, Perfect for you ... operation models :1 /8 /21 /flashing LED Bulbs Multi-function: bicycle head light, torch and diving Material: plastic Dimension (lamp): 71 ... of running light Quick release bracket, portable install to your bicycle Super bright, LED up to 800mtr/ 2,500ft Powered: 2 ...