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  • Home
  • Lighting Products
  • Lighting Applications
    • New Construction Can Light (Down Light + Can Housing)
    • RGB Lighting & Smart Controls
    • Decorative Pendants and Wall Sconces
    • Architectural Linear Fixtures
    • Cove, Indirect, Under Cabinet Lighting
    • Green Wall Lighting
      • Projects and Products
      • Green Wall Lighting Design Case Study
      • Green Wall Basics
    • Troffer Retrofit Kits
    • Exterior Lightscaping
    • Black Light Lighting
    • High Efficiency Linear Fixtures
    • Specialty LED/Laser Products
    • Horticulture LED Lighting
      • Horticulture Lighting Basics
      • Horticulture LED Products
    • Commercial Lighting
    • Industrial LED Lighting
    • Residential LED Lighting
  • Lighting Projects
    • Recent Projects
    • 2017 Projects
    • 2016 Projects
    • 2015 Projects
    • 2014 and Earlier Projects
  • About SST
    • Company Profile
    • Our Technology
    • Contact Us
    • News
    • Timeline
  • Blog Post
  • Resources
    • Glossary of LED Terms
    • Other LED Info
    • Product Catalog

UV Product Safety

Home UV Product Safety

The UV Light Spectrum

The UV light spectrum is composed of 100-400 nm wavelength light and includes UV-A, UV-B, and UV-C light.

UV-C and UV-B wavelengths are very harmful.  UV-C light (100-280 nm) is germicidal and is commonly used in commercial HVAC systems as a means to purify air.  UV-B light (280-320 nm) causes erythemal damage (sunburns) and the development of skin cancer in humans.

UV-A wavelength light (320-400nm) is not nearly as harmful to humans.  UV-A light does not cause sunburns.  However, exposure to UV-A wavelength light for long periods may still cause skin cancer.

The visible light spectrum is beyond the UV light spectrum and is composed of 400-700 nm wavelength light.

Underline

Sunlite’s UV LED Light Output

UV spectrum

As shown in the figure above, traditional mercury lamps emit light from both the UV and the visible light spectrums, and they may emit both UV-C and UV-B wavelength light.

Sunlite’s UV LED curing units only emit UV-A wavelength light with a narrow bandwidth of 20 nm.  As shown in the figure, the peak wavelength of Sunlite’s curing units can be specified as either 365, 375, 385, or 395 nm.

Underline

UV Light Safety

The LED lights used in Sunlite’s UV LED curing units:

* Do not generate ozone

* Do not contain mercury

* Emit only UV-A wavelength light close to the visible spectrum (that does not cause sunburns and is typically not harmful)

LED Radiance Safety

Sunlite’s UV LED curing units emit high irradiance light.  According to IEC Standard #62471 “The Photobiological Safety of Lamps and Lamp Systems” by the International Electrotechnical Commission (IEC), light emitted by Sunlite’s LED curing units is classified as “Risk Group 3” if viewed directly.  The risk due to light emitted by Sunlite’s LED curing units is considered either “exempt” or “low-to-moderate” if viewed indirectly.  It is important not to look directly at the UV light emitted by Sunlite’s UV LED curing units without wearing UV viewing glasses!

Product Safety

The safety features of Sunlite’s UV LED Curing Units include:

  • The power control box is grounded
  • All electrical components and wires are enclosed within the power unit
  • The units are RoHS compliant (Restriction of Hazardous Substances, also known as Lead-Free)
  • The units contain no Substances of Very High Concern (SVHC-listed substances) according to EU REACH Regulation

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