Jelosil was established in 1953 by Mr. Jacob Eigenheer in Locarno, Switzerland. From the onset, they made quartzlamps. At the same time, they built machines necessary to produce these lamps. The experience for making machines came about during second World War when it was impossible for Switzerland to get any quartzlamps from Germany, so they set up the company in Locarno to produce them. Locarno was chosen because of the conveniently situated there precious stone treatment productions which technology requires Oxygen and Hydrogen - two gases that also needed to produce the lamps.

Company details

Route de la Neuveville 5 , Le Landeron , CH - 2525 Switzerland

Locations Served

Business Type:
Industry Type:
Water and Wastewater - Water Treatment
Market Focus:
Internationally (various countries)
Year Founded:

This company also provides solutions for other industrial applications.
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Mr. Eigenheer produced his own Molybdenum ribbon and due to the shortage of glass blowers he set about mechanizing the process. In 1965 Felix Eigenheer joined the company and continued to develop both the lamp and lamp making machinery. In 1984 the lamp company Jelosil was set up separately from the equipment manufacturing. Machinery is still being developed to make small, middle and large size lamps and are capable of producing Halogen, Infrared, ultraviolet (UV) lamps and other gas discharge lamps. All machines are automatic or semi-automatic and are PLC controlled.

In the beginning of 2013 the lamp company Jelosil attracted new well skilled engineer team that developed the production facilities for producing in additionally low pressure amalgam lamps. Thus, lamp company Jelosil transformed into Jelosil UV-Technology and continue to produce a wide range of UV-quartz lamp for different applications of modern UV technology.

The current areas of application for our lamps are following

Drink water

UV water treatment is a relatively new and rapidly developing technology. The low pressure amalgam lamps gave new possibilities to this method over against the simple low pressure lamps. The main advantage of amalgam lamp is a high specific power with big efficiency. This circumstance allows to reach the industrial scale of treated water with small dimensions of the equipment.

The advantages of UV water treatment are following:

  • High performance of UV against all types of microorganisms
  • The absence of by-products during UV-treatment
  • Efficiency and safety of UV equipment
  • No transportation, storage or handling of chemicals
  • Easily installed within existing water treatment facilities
  • Low capital and operational costs
  • Effective as stand-along or part of multi-barrier treatment strategy
  • Simple to operate
  • Minimal hazard risks for operators

Industrial water

For environment safety is very important to clean and disinfect industrial waste water. 
Also a lot of types of water using in industrial processes (like gas treatment, technical water treatment, purification of radiators, mineral analysis and etc.) requires high and middle quality. Using UV-disinfection allows to completely refuse from chlorine method on processing industrial and waste water.


UV method is widely used for disinfection of surfaces and finds an application in hospitals, schools, and any other public places (airports, railway stations, stadium with a closed roof, nightclubs, buses. planes, trains, and etc.). Also one of directions – food industry, where is very important to prevent spreading of bacteria and other microorganisms in food, so UV-disinfection of surfaces in food production and packing process is very simple and effective way to solve this problem. UV disinfection also can be applied an agriculture industry (green houses, animal husbandry, fishing farms, store).


For clean healthy air and removing odors and bad smells UV disinfection is the most effective and low-cost method. In the air of public places (especially hospitals) there are a lot of microorganisms that requires very careful elimination. For this applications UV disinfection is used in irradiators and mounted in the ventilation system special devices with UV lamps.

Also, UV method finds an application in:

  • Medicine organizations
  • Food production facilities
  • Pharmaceutical production facilities
  • Food stores
  • Smelts contamination
  • Central air ventilation
  • In purpose of ozone generation
  • Public places (airports, raiway stations, stadium with a closed roof, nightclubs, buses. planes, trains, concert halls and so on)