Using your Casagami is a breeze. First, assemble it by putting together the adhesive 'Solarmodule' and the pre - cut paperboard sheet. It only takes a couple of minutes and no glue is needed. Once assembled, place it on the window sill during the day so it can soak up the sunlight and charge. When it's bedtime, it'll light up to give you 5 hours of light. If you got the plain white one, you can have fun decorating it however you like. As for maintenance, keep it away from excessive moisture and rough handling. If it gets dirty, you can gently wipe it with a dry cloth. Since it's made of paper, be careful not to bend or tear it too much. And remember, the more sunlight it gets during the day, the better it'll work at night.