Using your Milwaukee M12™ LED Stick Light is easy. First, get a Milwaukee M12™ REDLITHIUM battery (sold separately) and attach it to the light. Once it's connected, you're ready to go. You can hold the light in your hand or use the multi - position hook to hang it up for hands - free use. When it comes to maintenance, keep the lens clean. If it gets dirty, you can gently wipe it with a soft cloth. Also, if the lens gets damaged, it's replaceable. Make sure to store the light in a dry place when not in use. And remember, the light has a 5 - year tool warranty and a Limited Lifetime LED Warranty, so you're covered for a long time. Just follow these simple steps and your stick light will serve you well for all your work needs.