"Aiqite" Mushroom Lamp Humidifier with Touch Sensor Switch (Blue LT-LAMP-03) Lovely mushroom-shaped LED night light and humidifer with touch-sensor switch Click the switch once to use as humidifier. It adds 10ml of water to air eah hour. The water bottle holds 200ml of water. You can add some fragrance to water for good smell Double click on the switch to turn on LED night light. User instruction is printed on packaging box. There are 4 colors to choose from