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Germicidal UVC Light Bulbs

UV-C Germicidal Bulbs & Germicidal Lamps


Germicidal bulbs(UVGI / UV-C) are mainly used in specialized sterilization processes. UV-C germicidal bulbs give off light at the short end of wavelength that is harmful to micro-organisms (253.7nm). Germicidal bulbs emit ultraviolet light, UV-C germicidal bulbs are used in air purification, aquarium and pond sterilization, water purification and some etching processes. Germicidal UVC bulbs are clear in appearance and have no phosphor on the inner portion of the glass.

Another distinguishing aspect is that the germicidal arc tube is also made of quartz glass rather than standard fluorescent glass . This allows UV light to pass freely through the envelope and onto a surface.


Types of Germicidal Lamps:

  • Low Pressure Mercury Arc Tubes:
    Most Germicidal lamps are Low Pressure Mercury Arc Lamps. These lamps are available in Ozone producing or Non-Ozone producing. The peak wavelength for the none ozone producing germicidal lamp is 253.7nm and the peak wavelength for ozone producing Germicidal lamps is 253.7nm and 185nm.
  • Medium Pressure Arc Lamps:
    These type lamps are much more similar to the High Intensity Discharge(HID) lamp. They produce a broad band of UV-C radiation unlike the Low Pressure which radiates one band. The main use of these type lamps is in industrial and commercial waste water purification plants. Here large doses of intense radiation must be produced to ensure clean water that is free from micro-organisms and any contamination.


Germicidal bulbs are Dangerous

At this wavelength (253.7nm) germicidal lamps are dangerous to humans or any other forms of life it may come in contact with. The lamp should always be shielded and should never be viewable to the naked eye. If exposed to germicidal wavelengths humans will notice a sunburn on their skin and some may begin the initial stages of skin cancer. If a persons eyes are exposed to UVC lamps the individual will notice a severely painful inflammation of the cornea which may lead to temporary or permanent vision loss or impairment.

Germicidal lamps are also known as UV lamps, UV-C lamps, UVC bulbs, germicidal lamps, TUV lamps, germicidal UV light, UV Bulbs, UV-C Light Source, germicidal bulb.

Click here to shop for Germicidal Lamps(UV-C)




G4T5, G6T5, G8T5, G15T8, G20T10, G25T8, G30T8, G40T10, G64T5, GTL-3, PL-S13/TUV, PL-L18/TUV, PL-L36/TUV


    These lamps emit ULTRAVIOLET RADIATION (UVC). Avoid exposure. Ultraviolet radiation is harmful to the skin and the eyes and can cause serious skin burns and eye injury either from direct or reflected radiation. To reduce the risk of personal injury, install only in a fixture which provides adequate protection to area occupants. This lamp SHOULD NOT BE USED FOR ILLUMINATION PURPOSES. Hand and eye protection should be worn at all times when handling.
  • Precautions for safe handling and use:
    Consult the fixture manufacturer regarding the suitability of the fixture for this lamp. Operate with proper auxiliary equipment. Turn off lamps before installing, replacing, cleaning or performing any maintenance work near the fixtures. Handle lamps carefully to avoid breakage. Broken glass can cause cuts.
  • Waste disposal method:
    At the end of rated life, when this lamp is removed from service it will be subjected to the current Toxic Characteristic Leaching Procedure (TCLP) prescribed by the Environmental Protection Agency. This test is used in determining whether an item is a hazardous waste or a non-hazardous waste under current EPA definition. These lamps would fail the TCLP test and would be considered hazardous waste under the Universal Waste Rules. Generators should evaluate all of the disposal options, which may be available in the particular state in which the generator’s facility is located. The generator should check with federal, state and local officials for their guidance.
  • Control Measures:
    Do not operated under these lamps without personal protective equipment. (Goggles, glove, skin protection)
  • Respiratory Protection:
    If large numbers of these lamps are being broken appropriate respirator should be considered, note grinding of lamps on site may require a permit from state or federal authorities. We recommend recycling as your disposal method.
  • Ventilation:
    Avoid inhalation of airborne dust.