UV-WATER is composed of:

UV-WATER series includes different models of sterilizers, with 1, 2, 3 or 4 UV-C lamps.
To select the right device you must consider water flow, but also its transparency to UV-C rays, defined as UV-T. UV-T should be around 95%, if not the system has to be oversized.
Water passes through the stainless steel AISI 304L germicidal chamber, and it is irradiated by the lamp/lamps contained inside it.
UV-C lamps are inserted in a special quartz sleeve which guarantees water tightness and its resistant to a pressure up to 8 bars; in addition it isolates also the lamp from thermal shocks.
Light Progress lamps’ emit a dose of germicidal energy lethal for all microorganisms and a special disks system (septa) on its design, causes high revolving turbulences and mix the water flow, allowing UV-C rays to reach the entire circulating liquid mass.
UV-WATER series systems are produced entirely in Italy and are widely used also in various professional and industrial sectors, as well as in civil applications.


UV-WATER UV is a special UV-C system for water disinfection.
UV-C treatment is ideal for well water disinfection, cistern, or any source that present traces of microbiological pollution (ie. Coliforms, Streptococcus, Escherichia C.) and other microorganisms of various types, like molds, spores , etc.
In addition, it is ideal for water post-treatment, for example downstream active carbon filtration systems. All micro-organisms are eliminated by UV-C irradiation in a safe and rapid way, even Giardia, Cryptosporidium, and Pseudomonas Aeruginosa are eliminated completely, despite they are usually complicated to be removed.
UV-C treatment is purely physical, and it allows you to get always the same effect with no harmful by-products, without affecting smell, taste, and water’s pH.
UV-WATER maintains the natural and beneficial characteristics of the treated water as it does not affect the minerals naturally dissolved in it.
UV-WATER is compatible with all other water treatment methods such as filtration, water softening, dechlorination with Activated Carbon.
In some cases, law establishes the use of UV systems as mandatory, especially when water does not have any antimicrobial protection.
Installation is simple and can be performed by a common plumber.
Use and management of the system does not require special skills: the operations of ordinary maintenance and periodic replacement of the UV lamp (recommended every 9000 hours of use) can be performed without difficulty.




Ultraviolet rays are electromagnetic waves which are part of light. Electromagnetic waves are divided into three main wavelength bands, expressed in nanometers, nm: Ultraviolet rays (UV) 100-400 nm Visible rays (light) 400-700 nm Infrared rays (IR) 700-800,000 nm UV rays are in turn identified in three bands:

  • UV-A (315-400 nm) with tanning properties;
  • UV-B (280-315 nm) con proprietà terapeutiche e di sintesi della vitamina "D";
  • UV-C (100-280 nm) with germicidal properties.

UV-C rays (100-280 nm) have a strong germicidal effect and reach their maximum efficacy at the 265 nm wavelength. The germicidal effect of UV-C radiation covers bacteria, viruses, spores, fungi, moulds and mites; this is mainly due to the destructive effect of the UV-C rays on their DNA, which damage their reproductive system and prevent them from replicating.

Bacteria, Viruses, Spores, Fungi, Mould, and Mites are all sensitive to, and can therefore be eliminated with, UV-C light. Mircrobes cannot acquire resistance to UV-C light, unlike that which occurs using chemical disinfectants and antibiotics. UV rays are ecological. Polluting the environment is inevitable using normal disinfectants. Directly inhaling the vapours, or swallowing food products contaminated by any contact with said chemical disinfectants, can also give rise to a number of serious risks. In cases where chemical disinfectants cannot be eliminated (food, pharmaceutical, healthcare industries, etc.), using ultraviolet rays for disinfection allows a reduction in their use, with considerable economic savings and greater care for the environment, while maintaining and almost always improving the level of disinfection. UV-C light devices can be installed in environments and on machinery and be programmed to maintain the same level of disinfection day and night, guaranteeing ideal hygiene conditions, without highs and lows. On the contrary, chemical disinfectants are effective only during their actual use. Using LIGHT PROGRESS equipped luminaires, operating costs are negligible; it could be said that “LIGHT PROGRESS” UV-C systems do not require maintenance except for the normal replacement of the lamps. The cost/benefit ratio is considered excellent; the devices are both powerful and long-lasting. Hence the elimination of germs using UV-C technology is low-cost and highly effective compared to (or in combination with) other systems.

UV-C light genuinely works if properly applied and with the necessary precautions. The difference between a quality project, and an application that fails to bring the desired results, lies in the degree of knowledge about the subject, and level of experience acquired over time. Light Progress has been developing successful projects worldwide since 1987, and has built a client portfolio consisting of important companies in all fields requiring certified hygienic conditions to produce quality products and services.