Using your Casagami is easy! First, assemble it. It only takes a couple of minutes and you don't need any glue. Just put together the adhesive 'Solarmodule' and the pre - cut paperboard sheet. Once it's assembled, place it on the window sill during the day so it can soak up sunlight and charge. When it's time for bed, your Casagami will light up for about 5 hours. As for maintenance, keep it clean by gently wiping it with a dry cloth. Avoid getting it wet as it may damage the solar module. If you want to change its look, choose a plain white one and decorate it with your own designs. Remember, it's a great way to teach kids about sustainability, so involve them in the process and have fun together!