This SmartStream™ ultraviolet disinfection system is highly effective at providing protection against microbiological contamination in water for residential and commercial applications with 110v power input and flow rates up to 12 gallons per minute. Disinfection of water with SmartStream is a simple, rapid physical process. When contaminated water is exposed to SmartStream 254 nanometer UV light, the UV light penetrates the cell walls of microorganisms and disrupts their genetic deoxyribonucleic acid (DNA) material. This quickly inactivates microorganisms by destroying their ability to replicate and infect. UV light has the ability to inactivate up to 99.9999 percent (6 log) of harmful organisms in water. This UV system has the ability to inactivate bacteria, cysts, protozoa, parasites and viruses. Even mold and algae are inactivated by the powerful effects of UV. This SmartStream UV disinfection system can be used as a point of entry or point of use disinfection device.