The lights are waterproof. The lids and handles are made of stainless steel, so you can leave them outside without worrying about the weather. Automatic Sensor: Simply unscrew the cover and turn on the switch, lights charge during the day and turn on at dusk. Easy to use Fast Charging: The solar garden lights will be fully charged in 5-8 hours under bright sunlight. When fully charged, they last 8-12 hours at night. They are like a bunch of fireflies in a bottle, each LED light gives off a beautiful warm glow, very warm and romantic. It's also a perfect gift, everyone loves string lights. Waterproof Its waterproof rating is IP65, so you don't have to worry about placing it outside. Don't worry about rain and snow. Good idea for outdoor garden patio deck wedding party Christmas decorations. Stainless steel The lid and handle are made of stainless steel so you can leave them outside without worrying about rust. They will keep looking great. Work automatically The solar panel has photosensitive elements that automatically charge during the day and turn on at dusk.