Using your Dungeons and Dragons D12 light is easy. First, insert 2x AAA batteries into the battery compartment (batteries are not supplied). Once the batteries are in, switch the light on. You'll see it start to change colors between purple, blue, green, yellow, and red. You can place it anywhere you like - on a table, a shelf, or take it with you to your D&D sessions at a friend's house. When not in use, switch it off to save battery life. Keep the light away from water and extreme temperatures. If the light stops working, check the batteries to make sure they are inserted correctly and have enough power. Replace the batteries as needed.