Advanced UV-C light sanitization technology with optimal performance.

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Today’s world has intensified the need for healthy, clean environments. To address this need, Keystone offers ultraviolet germicidal lamps and paired ballasts that offer cutting-edge UV-C disinfection and sterilization to protect against viruses and bacteria.

The Keystone UV-C Advantage

The lighting industry has found that pairing between ballasts and UV-C lamps isn’t always dependable. Ballasts are not optimized to work with lamps, so pairing power supplies with lamps can lead to wildly differing outcomes in power output. Among the concerns:

  • No national standard. There is no national standard for UV-C lamps, so products and their outputs vary widely.
  • Indefinite terms. “Output” is a flexible term, as UV-C, which is part of the nonvisible part of the spectrum, doesn’t register in lumens.
  • Uncertain pairings between ballasts and lamps. UV-C lamp output intensity (and therefore effectiveness) depends on the ballast driving it. Without a proper understanding of how a ballast is driving a lamp, there is a lot of room for uncertainty that can lead to insufficient disinfection performance, lamp failure, and/or solutions that are more expensive and larger than they need to be.

Why Keystone?

  • No guesswork. Keystone has taken the guesswork out of the process of matching ballast to lamp by creating a chart of replacement recommendations, so consumers can easily pair a particular ballast with a specific lamp.
  • A full line of lamps and ballasts. In addition, Keystone offers a line of products, including a full selection of lamps and coordinating ballasts, that provide the optimal solution for best performance.
  • Products designed for disinfection. Keystone germicidal UV-C lamps and ballasts are intended for fixtures specifically designed for disinfection purposes using UV-C 254nm light sources, including those in water purification, HVAC air handling, food processing, clean rooms, and other general sterilization/disinfection needs.

What UV-C does

Ultraviolet light, which includes UV-C, is a widely used sanitization technology. UV-C components are used in advanced treatment technologies in water and air quality applications, including purification, sanitization, and disinfection.

  • What is UV-C? UV-C is a portion of ultraviolet light on the spectrum from 200 to 280 nm.
  • How does UV-C work? UV-C radiation has been proven to effectively inactivate various tested pathogens such as common viruses and bacteria. UV-C radiation damages the molecules of nucleic acids and proteins, which helps to destroy and/or render them harmless. UV-C has been shown to be an effective technology against coronaviruses, E. coli, salmonella, and listeria, among other organisms.
  • What about COVID-19? Studies have shown that UV-C light can inactivate most SARS-CoV-2 virus particles, the microorganisms that cause COVID-19. Depending upon whether the virus is present in air or liquid or on surfaces, the process can take anywhere from 30 seconds to 25 minutes.

Ballast Pairing Guide

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Tech Specs

Germicidal Ultraviolet Lamps

Linear

  • T5 Double-Ended Bi-Pin
    Catalog Number Length Base Type Nominal Power Nominal
    Voltage    		 Nominal
    Lamp Current    		 Peak
    Wavelength    		 Average
    Lifetime    		 Nominal UV
    Output    		 Spec Sheet
    mm inches
    KTL-G4T5-254-DE 135mm 5.31in G5 4.5W 28V 170mA 254nm >8000 hrs 0.9W Download
    KTL-G6T5-254-DE 212mm 8.35in 6W 42V 160mA 0.9W
    KTL-G8T5-254-DE 288mm 11.34in 8W 56V 150mA 2.1W

  • T8 Double-Ended Bi-Pin
    Catalog Number Length Base Type Nominal Power Nominal
    Voltage    		 Nominal
    Lamp Current    		 Peak
    Wavelength    		 Average
    Lifetime    		 Nominal UV
    Output    		 Spec Sheet
    mm inches
    KTL-G15T8-254-DE 436mm 17.17in G13 15W 51V 340mA 254nm >8000 hrs 4.7W Download
    KTL-G30T8-254-DE 894mm 35.20in 30W 100V 370mA 11.2W
    KTL-G36T8-254-DE 1199mm 47.20in 36W 103V 440mA 15.5W
    KTL-G55T8-254-HO-DE 894mm 35.20in 55W 87V 780mA 17W
    KTL-G75T8-254-HO-DE 1199mm 47.20in 75W 110V 850mA 26W
    KTL-G95T8-254-HO-DE 1500mm 59.06in 95W 124V 620mA 33W

  • T5 Single-Ended 4-Pin
    Catalog Number Length Base Type Nominal Power Nominal
    Voltage    		 Nominal
    Lamp Current    		 Peak
    Wavelength    		 Average
    Lifetime    		 Nominal UV
    Output    		 Spec Sheet
    mm inches
    KTL-G16T5-254-4P 317mm 12.48in G10q 16W 37V 425mA 254nm >8000 hrs 4.3W Download
    KTL-G17T5-254-4P 357mm 14.06in 17W 51V 425mA 5.7W
    KTL-G22T5-254-4P 436mm 17.17in 21W 62V 425mA 7.3W
    KTL-G36T5-254-4P 843mm 33.19in 40W 120V 425mA 15W
    KTL-G150T5-254-HO-4P 1554mm 61.18in 150W 220V 800mA 45W

    • Compact

  • Compact 2-Pin
    Catalog Number Length Base Type Nominal Power Nominal
    Voltage    		 Nominal
    Lamp Current    		 Peak
    Wavelength    		 Average
    Lifetime    		 Nominal UV
    Output    		 Spec Sheet
    mm inches
    KTL-G5PLS-254-G23 85mm 3.35in G23 5W 34V 180mA 254nm >8000 hrs 1.1W Download
    KTL-G9PLS-254-G23 145mm 5.71in 9W 60V 170mA 2.4W
    KTL-G13PLS-254-GX23 165mm 6.5in GX23 13W 60V 290mA 3.4W

  • Long Compact 4-Pin
    Catalog Number Length Base Type Nominal Power Nominal
    Voltage    		 Nominal
    Lamp Current    		 Peak
    Wavelength    		 Average
    Lifetime    		 Nominal UV
    Output    		 Spec Sheet
    mm inches
    KTL-G18PLL-254-2G11 217mm 8.54in 2G11 18W 60V 370mA 254nm >8000 hrs 5.8W Download
    KTL-G36PLL-254-2G11 410mm 16.14in 36W 105V 440mA 12W
    KTL-G55PLL-254-2G11 530mm 20.87in 55W 103V 540mA 18W
    KTL-G95PLL-254-HO-2G11 530mm 20.87in 95W 100V 950mA 33W

    • Ballasts for UVC Lamps

  • Compact Case
    Catalog Number Lamp Type Number of Lamps Input Volts (V) Input Power (W) Lamp Current (mA) Lamp Power (W) per
    lamp    		 Spec Sheet
    KTG15-2L-150-UV-PS-C1 KTL-G4T5-254-DE 1 120 5.9 150 3.4 Download
    277 6.2 150 3.4
    2 120 9.7 150 3.4
    277 10 150 3.5
    KTL-G6T5-254-DE 1 120 7.9 150 5.2
    277 8.6 150 5.4
    2 120 13.7 150 5.1
    277 13.6 150 5.1
    KTL-G8T5-254-DE 1 120 10.1 150 7.2
    277 10.4 150 7.1
    2 120 17.9 150 7
    277 17.7 150 7
    KTG40-2L-300-UV-PS-C1 KTL-G15T8-254_DE 1 120 18 300 14 Download
    277 18 300 14
    2 120 32 295 14
    277 32 295 14
    KTL-G30T8-254-DE 1 120 34 295 29
    277 33 295 29
    KTL-G36T8-254-DE 1 120 42 295 37
    277 42 295 37
    KTG45-2L-370-UV-PS-C1 KTL-G16T5-254-4P (GPH317T5L/4P) 1 120 19 380 12 Download
    277 19 380 12
    2 120 36 350 13
    277 35 350 13
    KTL-G17T5-254-4P (GPH357T5L/4P) 1 120 20 370 14
    277 21 370 14
    2 120 36 350 14
    277 35 350 13
    KTL-G22T5-254-4P 1 120 24 370 17
    277 24 370 17
    2 120 42 340 16
    277 41 340 16
    KTL-G36T5-254-4P 1 120 42 370 34
    277 41 370 34
    KTL-G18PLL-254-2G11 1 120 21 390 16
    277 22 390 17
    2 120 38 360 15
    277 37 360 15
    KTL-G36PLL-254-2G11 1 120 37 380 31
    277 38 380 32
    KTL-G30T8-254-DE 1 120 39 370 31
    277 38 370 30
    KTL-G36T8-254-DE 1 120 52 370 43
    277 52 370 46
    KTG75-1L-800-UV-PS-C2 KTL-G55T8-254-HO-DE 1 120 61 820 52 Download
    277 60 820 50
    KTL-G75T8-254-HO-DE 1 120 74 810 63
    277 74 810 63

  • Linear Case Type
    Catalog Number Lamp Type Number of Lamps Input Volts (V) Input Power (W) Lamp Current (mA) Lamp Power (W) per lamp Spec Sheet
    KTG200-2L-500-UV-PS-L4 KTL-G95T8-254-HO-DE 1 120 71 510 64 Download
    277 74 510 65
    2 120 136 490 62
    277 134 490 612
    KTL-G55PLL-254-2G11 1 120 53 520 48
    277 54 520 48
    2 120 104 500 49
    277 99 500 47
    KTG100-2L-480-UV-PS-L1 KTL-G16T5-254-4P (GPH317T5L/4P) 1 120 19 490 15 Download
    277 19 490 15
    2 120 35 480 15
    277 35 480 15
    KTL-G17T5-254-4P (GPH357T5L/4P) 1 120 21 490 17
    277 21 490 17
    2 120 39 480 17
    277 39 480 17
    KTL-G22T5-254-4P 1 120 25 485 21
    277 25 485 21
    2 120 48 475 21
    277 47 475 21
    KTL-G36T5-254-4P 1 120 48 480 42
    277 47 480 42
    2 120 89 455 40
    277 87 455 40
    KTL-G36T8-254-DE 1 120 60 480 53
    277 59 480 53
    2 120 108 445 50
    277 107 445 50
    KTL-G36PLL-254-2G11 1 120 46 485 42
    277 46 485 42
    2 120 88 460 40
    277 87 460 40
    KTG75-2L-350-UV-PS-L1 KTL-G15T8-254-DE 1 120 18 350 16 Download
    277 18 350 16
    2 120 34 345 15
    277 34 345 15
    KTL-G30T8-254-DE 1 120 34 350 31
    277 34 350 31
    2 120 68 345 31
    277 67 345 31
    KTL-G36T8-254-DE 1 120 45 350 42
    277 45 350 42
    KTL-G16T5-254-4P (GPH317T5L/4P) 1 120 15 350 12
    277 15 350 12
    2 120 28 345 13
    277 28 345 13
    KTL-G17T5-254-4P (GPH357T5L/4P) 1 120 18 350 15
    277 18 350 15
    2 120 33 345 15
    277 33 345 15
    KTL-G22T5-254-4P 1 120 20 350 18
    277 20 350 18
    2 120 39 345 18
    277 39 345 18
    KTL-G36T5-254-4P 1 120 39 350 36
    277 39 350 36
    2 120 75 340 35
    277 74 340 35
    KTL-G18PLL-254-2G11 1 120 19 350 16
    277 19 350 16
    2 120 35 345 16
    277 35 345 16
    KTL-G36PLL-254-2G11 1 120 37 350 34
    277 37 350 34
    2 120 75 340 34
    277 73 340 34
    KTG100-1L-800-UV-PS-L2 KTL-G55T8-254-HO-DE 1 120 57 825 52 Download
    277 57 825 52
    KTL-G75T8-254-HO-DE 1 120 76 815 70
    277 76 815 70
    KTL-G95PLL-254-HO-2G11 1 120 91 805 85
    277 91 805 85
    KTG150-1L-840-UV-PS-L3 KTL-G150T5-254-HO-4P 1 120 123 830 116 Download
    277 123 830 116

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