• UV (Ultraviolet) refers to invisible light which appears on the more outside than a short wavelength (violet) of visible light.
  


• UV is classified into Long-wavelength Ultraviolet (UV-A), Medium-wavelength Ultraviolet (UV-B), and Short-wavelength Ultraviolet (UV-C) according to the wavelength.
  
  

  type	UV-A	UV-B	UV-C
  Wavelength(nm)	315~400	280~315	200~280
  Application	Counterfeit discrimination, Special Lighting	Beauty tanning, Medical	Sterilization (Air, Watter)

  
  
• UV has the short wavelength and strong energy compared to visible light and so produces various chemical and sterilizing reactions.

• Electron, which flows in the tube by electric discharge, collides with mercury and Ne+Ar gas and emits ultraviolet rays (253.7nm).
  


• The difference between UV lamp and fluorescent lamp
  - Both of them have the same process until ultraviolet rays are
  created in the tube.
  - UV Lamp: Lamp to emit ultraviolet ray
  - Florescent Lamp: Lamp to emit visible light by letting ultraviolet ray excite fluorescent materials on the inner wall of a tube

UV Lamp

The lamp lifetime and scalability is ensured by using a specially designed electrode.

Long Lifetime

The UV lamp using current filament electrodes has the short lifetime of less than 10,000 hours due to the inevitable degradation of the electrode. While, the UV lamp of EI Lighting uses specially-designed electrodes instead of filament electrodes and as a result, has improved the reliability and lifetime of the UV lamp.

Expandability and Convenience

Each filament-type UV lamp must have its own ballast. The UV lamp of EI Lighting can operate several lamps using one ballast.

• Various UV lamps mounted
  
• Sleeve (quartz protection tube) cleaning function applied
  - Internal self-cleaning function to maintain sterilizing power
  
• Tube-type Structure
  - Small-scale water and sewage treatment facilities
  - Stable against water flow and corrosion
  
• Water Treatment Capacity: ~200ton/day
  - The capacity may vary subject to the flow velocity
  
• Easy Lamp Maintenance
  - Easy to replace the lamp