The product buit-in device for mini generating electricity,illuminated by water without battery,the light will go out when the water was turned off.    
    When water flows down, the LED will light instantly and automatically.
    The illuminated colour will change according to the water temperiture.   
    Don't need battery and the power cord; connected to water after a Faucet Light spraying water at the moment will be issued by the gradual change in different colors light.
    Two Universal adaptors (included) fits most water faucets.

OEM/ODM,Customized Logos/Designs are Welcome