The Led Lenser K1 is a very useful keychain torch that will help you out in pitch-dark! It works on four LR41 button-cell batteries, which makes the torch itself about the size of an AAA battery. The maximum light output is 17 lumens and it can go for 45 minutes straight. Switching it on and off is very easy by loosening and tightening the head.
|Country of origin||China|