Ready light flashlight need no batteries to provide illumination. Simply press the handle to crank, 1 minute of charging provides up to 20 minutes of light. Ready light flashlight has two LED bulbs for bright light during emergencies. Environmentally safe and easy to use. Includes wrist strap attached. Total dimensions of the Ready Light is 4'' x 2.25'' x 1''. Sold Each. Great flashlight to keep in autos, rvs, boats, bug out bags or disaster emergency kits.