Using your Milwaukee 2112 - 21 USB Rechargeable ROVER™ Pocket Flood Light is a piece of cake. First, make sure the REDLITHIUM® USB Battery is charged. You can charge it either inside the light via the Micro USB port or swap it with a pre - charged battery. To use the light, just turn it on. You have two light output modes. If you need a lot of light quickly, use the high mode which gives you 445 lumens but only lasts for 2 hours. For longer - term use, switch to the low mode that provides 100 lumens and can run for up to 11 hours. The dual - magnet clip allows you to attach the light wherever you need it, like on metal surfaces or your work clothes. As for the LED fuel gauge, it's there to help you quickly check how much charge is left in the battery. When it comes to maintenance, keep the lens clean. Since it's impact and chemical resistant, you can use a mild cleaner to wipe it down. Also, avoid exposing the light to extreme temperatures for long periods. If you have any issues, don't worry as it comes with a limited lifetime warranty.
