These are LED torches with a bike bracket to be used as a front light.
You can get a cheap 18650 rechargeable battery and charger on ebay as this comes with the extension to fit those batteries
2 x CREE Flashlight Torch
2 x Flashlight Bicycle Holder
2 x Flashlight Cover
1 x 5LED REAR LIGHT
Individually thes cost about £9, so with the rear light thrown in this is a bargain if you need 2 lights