Using your Milwaukee 2161-21 flashlight is easy. First, make sure the REDLITHIUM™ USB 3.0AH battery is charged. You can charge it in the flashlight via the Micro USB cable or swap it with a fully - charged one. To turn on the flashlight, press the multi - functional power button. You can use the twist focus feature to adjust the beam size and intensity according to your needs. The button also shows you the battery charge status. Select different light modes (high, medium, low) by pressing the button. It will remember the last mode you used. When not in use, you can attach the flashlight to your pants or tool bag with the removable clip. For maintenance, keep it clean and dry. Since it's dustproof and waterproof, you can clean it under running water, but don't submerge it for longer than necessary. If you have any issues, refer to the limited lifetime warranty.
