Spa tub cover and method of sterilizing water within spa tub

A spa tub cover, comprising:

• one or more Ultraviolet (UV)-C lights secured to an inner side of the spa tub cover, the one or more Ultraviolet (UV)-C lights being arranged in an array and configured to disinfect water and/or surfaces within the spa tub;
• one or more fixation devices adapted to secure the one or more Ultraviolet (UV)-C lights to the inner side of the spa tub cover fitted over an opening of the spa tub;
• a hinge positioned between a first surface and a second surface of the spa tub cover to make the spa tub cover foldable;
• a switch mounted adjacent the hinge of the spa tub cover, and to be operated for activating or deactivating the one or more Ultraviolet (UV)-C lights;
• and
• a power cord attached to the second surface of the spa tub cover for supplying power to the one or more Ultraviolet (UV)-C lights configured to disinfect the water and/or surfaces within the spa tub.

A method of sterilizing water and/or surfaces within a spa tub, comprising steps of:

• placing a spa tub cover over a spa tub and unfolding the spa tub cover to close an opening of the spa tub;
• actuating a switch to supply an electrical energy from a power supply unit to one or more Ultraviolet (UV)-C lights, thereby activating the one or more Ultraviolet (UV)-C lights, wherein the one or more Ultraviolet (UV)-C lights are configured to emit light rays with wavelengths in a range of 200 Nanometers (nm) to 280 Nanometers (nm) to disinfect the water and/or surfaces of the spa tub;
• actuating the switch to discontinue the supply of electrical energy from the power supply unit to the one or more Ultraviolet (UV)-C lights, thereby deactivating the Ultraviolet (UV)-C lights when disinfection of the spa tub is completed by the spa tub cover;
• and
• folding the spa tub cover by the user to provide access to the opening of the spa tub.