The Led Lenser K4R is a stylish and compact rechargeable key ring torch that has a maximum output of 60 lumens.
The battery is charged using the included USB cable, simply plug the cable into the torch and connect the other end to a USB power source. The charging indicator next to the port will illuminate red to show charging is in progress and will turn green once charging is complete.
A single push button operates the torch, with one press turning it on to provide wide angle illumination and a second press turning it off again. The K4R also has an SOS function which can be activated by holding the button down for 3 seconds.
For easy carry the light features a small carabiner clip to attach it to your keys, so it is always to hand when you need it.