This is prototype of led light designed for Leatherman multi-tools. Light is based on led diode Cree XLamp XT-E. Standby current is less than 0,06 uA , active current is 4 mA. With tvo 1.5V battery with capacity 14mA is active time 210 minutes (3,5 hours) and standby time is 233 333 minutes (162 days). This is first prototype of light for multi-tools, next version will be designed with microcontroller and more features.