This bulb is amazing! Charge it by day, and you have light all night! (Or several nights on a single charge if not left on constantly. If you want to leave it on, you can. It will chrage every day and shine every night!) The cord is only needed for charging, and a hook is attached for hanging. I originally put it in the kid's shower (with the cord running through the window), but moved it to my shed. I will probably order more! #Sponsered #RankBoosterReview #SolarLightbulb #ProdeliLED #EmergencyLight