Rechargeable Bicycle Tail Light,rechargeable light,torch light,Bicycle Light,torch flashlight,rechargeable flashlight,waterproof Rechargeable Bicycle Tail Light,rechargeable light,torch light,Bicycle Light,torch flashlight,rechargeable flashlight,waterproof LED ... red LED.works with our TK-031FD for easy charging or connects with other USB power supplies for charging.charging time ...