This fantastic 12 led lantern combines led technology with practicality and convenience without any need for disposable batteries perfect in case of emergency or in the event of a power cut simply wind up using the handle to charge the built in battery 60 seconds of gentle winding will give up to 35 minutes of continuous light powered by 12 high intensity virtually indestructible led bulbs burn time up to 100 000 hours this superb portable lantern is extremely lightweight 619g