Just leave these floating pool lights out in the sun all day charging, floating in water.You don't need to do anything,they automaticlly turn off and get charging during the day, then automaticlly turn on at night.The floating pool lights can glow up to 8-10 hours on a full charge.Please always keep the solar panel up,otherwise the floating pool lights cannot be . floating pool lights float on the water during the day,the pool lights creates you a floating light show in your pool when the night comes, Also this floating pool ligths with RGB color Changing automatically, The color is intense and mesmerizing! Adds a of color at night to the pool and create a perfect atmosphere for parties and gatherings! solar floating lights are made of high-quality and ABS material,which makes the shell more tough and anti-aging.They are waterproof with a thick sealing ring at the bottom of the lights and are fully waterproof,It's very suitable for outdoor use.RGB color changing creates a warm and safe atmosphere.This solar Floating Pool Lights is the best decoration for your pool Our floating pool light is so fun for everyone but also create a great atmosphere and can create a relaxing environment.You can make led ball lights worked as night lights, let your family no longer fear the darkness of the night. These outdoor decorations work well for birthday parties, beach wedding, swimming pool, lanai, backyard pool, pergola, festivals and more, on any occasion.