This unique LED light with Dutch design features a 15-minute timer function and does not get hot, making it safe for children to use. It is also very convenient for on-the-go use, as you can operate the light with three LR44 batteries (included). Be sure to always secure the battery cover properly with the provided screw. The light has three functions: on, off, or timer (15 minutes). The timer function is indicated by a small light at the bottom. It operates with three LR44 batteries (included) and lasts for about 20 hours.