Spectra of UV lamps and UV LEDs
The Opsytec spectra database contains 54 measured emission spectra of UV lamps and UV LEDs – from low-pressure and medium-pressure mercury lamps through excimer and deuterium lamps to UVA, UVC and infrared LEDs. All spectra were measured in the Opsytec laboratory in accordance with CIE 250:2022, may be used freely and can be downloaded to calculate the UV-A, UV-B and UV-C components.
Our database offers precise and reliable spectra of a wide range of UV LEDs and UV lamps. The spectra are typical for the respective class. Therefore, we do not provide type designations.
All spectra were measured in our laboratory and can be used freely. The measurements were performed in accordance with CIE 250:2022 „Spectroradiometric Measurement of Optical Radiation Sources". We have also provided some information on various UV light sources. If you have any questions or queries, please do not hesitate to contact us.
The UV-A, UV-B and UV-C components of the emission can be calculated from the spectra. Instructions on how to calculate the irradiance from the spectral irradiance can be found here.
Here you can download the spectral data of UV lamps and UV LEDs. Learn more about UV LED technology for UVA, UVB and UVC in our UV LED training.
Compare and Analyze Spectra Online
With the Spectral Database Explorer, you can view and compare all spectra in this database directly in your browser—no downloads or spreadsheets required.
The Explorer calculates the most important photometric and photobiological parameters from each spectrum:
- Proportions of UV-C, UV-B, UV-A, and visible light
- Illuminance and color temperature
- Actinic irradiance (risk to skin and eyes)
- Erythemal irradiance
- Vitamin D-inducing and melanopic irradiance
This makes it easy to quickly determine which lamp or UV LED is suitable for a given application, how much two emitters differ spectrally, and which spectral range is relevant for the measurement. When designing a process, the Explorer is not a substitute for measurements taken with a calibrated radiometer.
All spectra with their characteristic values – measured range, peak wavelength and the shares in UV-C, UV-B, UV-A and the visible range – are listed in the overview at the end of this page.
Visualisation and analysis of spectral data
Try it out for free!
Spectra of medium pressure mercury lamps
- Typical outputs: 1 kW - 40 kW
- Doping:
- HG
- iron
- gallium
- ozone-free and ozone-generating
- Links:
Spectra of high-pressure mercury lamps
- Typical power: 100 W - 40 kW
- Doping:
- none
- ozone-free and ozone-generating
- Links:
Spectra of low-pressure mercury lamps
- Typical power: 4 W - 600 W
- Doping:
- none
- ozone-free and ozone-generating (185 nm)
- Links:
Spectra of UV fluorescent lamps
- Typical power: 4 W - 200 W
- Doping:
- none (emission by the phosphor layer)
- ozone-free
- Links
- Fluorescent lamp (Helarium)
- Fluorescent lamp (UVB-311)
- Fluorescent lamp (UVB broadband)
- Fluorescent lamp(UVA-340)
- Fluorescent lamp (100 W, light colour 79)
- Fluorescent lamp(BlacklightBlue 352 nm)
- Fluorescent lamp (BlacklightBlue 368 nm)
- Fluorescent lamp (light color 05)
- Fluorescent lamp (Philips Actinic BL)
- Fluorescent lamp (6500 K)
- Fluorescent lamp T8 15 W (cool daylight)
Spectra of excimer lamps
- Typical power: 10 W - 1000 W
- Excimer:
- Kr-Cl
- usually ozone-generating
- Links:
Spectra of blue-emitting LEDs and LED modules
- Typical wattages: 1-5 W as single LED, as LED module also up to 2000 W
- Doping:
- none
- ozone-free
- Links:
Spectra of visible-range LEDs (VIS)
- Typical wattages: 1-5 W as single LED, as LED module also up to 2000 W
- Doping:
- none
- ozone-free
- Links:
Spectra of UVA LEDs and UVA LED modules
- Typical wattages: 1-5 W as single LED, as LED module also up to 2000 W
- Doping:
- none
- ozone-free
- Links:
Spectra of UVB LEDs and UVB LED modules
- Typical wattages: 1-4 W as single LED, as LED module also up to 200 W
- Doping:
- none
- ozone-free
- Links:
Spectra of UVC LEDs and UVC LED modules
- Typical wattages: 1-4 W as single LED, as LED module also up to 200 W
- Doping:
- none
- ozone-free
- Links:
Spectra of xenon lamps, xenon short arc lamps and xenon flash lamps
- Typical power: 150 W - 5000 W
- Doping:
- none
- ozone-free and ozone-generating
- DC-operated or pulsed operated
- Links:
Spectra of metal halide lamps
- Typical power: 400 W - 4000W
- Dopants:
- Metal halides
- usually ozone-free
- Links:
Spectra of halogen lamps
- Typical power: 10 W - 1 kW
- Doping:
- none
- ozone-free
- Links:
Spectra of deuterium lamps, D2 lamps
- Typical power: 10 W - 300 W
- Doping:
- none
- ozone-generating and ozone-free
- Links:
Overview of the Spectra
The overview lists all 54 spectra of the Opsytec spectral database with their calculated characteristic values: measured range, peak wavelength and the shares in UV-C, UV-B, UV-A and the visible range. The shares refer to the total measured irradiance. The spectra are typical of the respective lamp class and may be used freely; every row links to the measurement data as an XLSX file.
The characteristic values are obtained by trapezoidal integration over the native measurement grid. Band limits according to CIE: UV-C 100–280 nm, UV-B 280–315 nm, UV-A 315–400 nm, visible 380–780 nm; the UV-A and visible ranges overlap between 380 and 400 nm. A share in parentheses indicates that the measured range does not fully cover the band. Where the measured range extends beyond 780 nm, the remainder not listed lies in the infrared. All measurements according to CIE 250:2022. Information without guarantee – the values are for orientation and do not replace a measurement.
| Lamp | Measured rangenm | Peaknm | UV-C% | UV-B% | UV-A% | visible% | Download |
|---|---|---|---|---|---|---|---|
| Medium-pressure mercury lamp | 200–600 | 546.5 | (26.6) | 16.8 | 17.7 | (39.4) | Spectrum (XLSX) |
| Ozone-free medium-pressure mercury lamp | 200–600 | 546.0 | (8.8) | 20.5 | 21.5 | (49.9) | Spectrum (XLSX) |
| Ozone-free medium-pressure lamp (iron-doped) | 200–600 | 546.0 | (5.1) | 11.7 | 45.0 | (49.1) | Spectrum (XLSX) |
| Gallium lamp (medium pressure) | 200–600 | 419.0 | (4.1) | 13.1 | 20.7 | (67.5) | Spectrum (XLSX) |
| Medium-pressure mercury lamp OSRAM UltraVitalux 300 W | 200–450 | 365.5 | (0.1) | 11.4 | 45.0 | (45.0) | Spectrum (XLSX) |
| High-pressure Hg lamp LC5 (with light guide) | 200–600 | 365.0 | (1.2) | 37.1 | 43.1 | (21.6) | Spectrum (XLSX) |
| High-pressure mercury lamp (with light guide) | 200–600 | 438.5 | (<0.1) | 2.5 | 35.1 | (70.2) | Spectrum (XLSX) |
| UVC low-pressure mercury lamp (253.7 nm) | 200–600 | 253.5 | (92.7) | 1.6 | 1.2 | (4.6) | Spectrum (XLSX) |
| Mercury amalgam lamp (253.7 nm, high power) | 200–600 | 253.5 | (71.0) | 5.1 | 3.8 | (20.4) | Spectrum (XLSX) |
| Fluorescent lamp (Helarium) | 200–600 | 546.5 | (<0.1) | 3.2 | 74.7 | (28.6) | Spectrum (XLSX) |
| Fluorescent lamp (UVB-311) | 230–450 | 311.5 | (<0.1) | 73.2 | 17.6 | (11.4) | Spectrum (XLSX) |
| Fluorescent lamp (UVB broadband) | 200–600 | 435.5 | (1.9) | 53.8 | 36.1 | (8.5) | Spectrum (XLSX) |
| Fluorescent lamp (UVA-340) | 200–600 | 435.5 | (<0.1) | 3.7 | 83.9 | (18.4) | Spectrum (XLSX) |
| Fluorescent lamp (100 W, colour 79) | 200–600 | 546.0 | (<0.1) | 0.3 | 78.1 | (28.1) | Spectrum (XLSX) |
| Fluorescent lamp (BlacklightBlue 352 nm) | 200–600 | 365.0 | (<0.1) | 0.5 | 98.9 | (5.6) | Spectrum (XLSX) |
| Fluorescent lamp (BlacklightBlue 368 nm) | 300–450 | 365.5 | (–) | (0.1) | 99.5 | (11.0) | Spectrum (XLSX) |
| Fluorescent lamp (colour 05) | 200–600 | 435.5 | (<0.1) | 0.8 | 72.2 | (45.0) | Spectrum (XLSX) |
| Fluorescent lamp (Philips Actinic BL) | 200–600 | 369.0 | (<0.1) | <0.1 | 91.2 | (22.6) | Spectrum (XLSX) |
| Fluorescent lamp (6500 K) | 379–780 | 546.0 | (–) | (–) | (0.5) | 100.0 | Spectrum (XLSX) |
| Fluorescent lamp T8 15 W (cool daylight) | 379–1045 | 545.3 | (–) | (–) | (0.3) | 99.7 | Spectrum (XLSX) |
| Filtered excimer lamp (KrCl) 222 nm | 200–400 | 221.5 | (99.8) | <0.1 | 0.2 | (0.1) | Spectrum (XLSX) |
| Excimer lamp (KrCl) 222 nm | 200–380 | 222.0 | (98.6) | 0.8 | (0.6) | (–) | Spectrum (XLSX) |
| Blue LED (405 nm) | 330–450 | 405.0 | (–) | (–) | (28.1) | (99.7) | Spectrum (XLSX) |
| Blue LED (420 nm) | 320–520 | 423.5 | (–) | (–) | (1.0) | (100.0) | Spectrum (XLSX) |
| Blue LED (445 nm) | 330–520 | 447.0 | (–) | (–) | (<0.1) | (100.0) | Spectrum (XLSX) |
| Blue LED (450 nm) | 330–520 | 451.0 | (–) | (–) | (<0.1) | (100.0) | Spectrum (XLSX) |
| VIS blue (450 nm) | 379–780 | 450.3 | (–) | (–) | (0.1) | 100.0 | Spectrum (XLSX) |
| VIS green (520 nm) | 379–780 | 519.7 | (–) | (–) | (<0.1) | 100.0 | Spectrum (XLSX) |
| VIS red (630 nm) | 379–780 | 631.8 | (–) | (–) | (<0.1) | 100.0 | Spectrum (XLSX) |
| VIS white (CIE A, 3139 K) | 379–780 | 715.7 | (–) | (–) | (0.9) | 99.8 | Spectrum (XLSX) |
| VIS white (CIE D50, 5235 K) | 379–780 | 511.6 | (–) | (–) | (0.2) | 99.9 | Spectrum (XLSX) |
| VIS white (CIE E, 5616 K) | 379–780 | 502.8 | (–) | (–) | (1.3) | 99.9 | Spectrum (XLSX) |
| White LED (5670 K) | 379–1039 | 451.6 | (–) | (–) | (0.1) | 99.4 | Spectrum (XLSX) |
| IR LED (750 nm) | 379–1045 | 755.2 | (–) | (–) | (<0.1) | 96.9 | Spectrum (XLSX) |
| IR LED (810 nm) | 379–1045 | 804.1 | (–) | (–) | (<0.1) | 12.3 | Spectrum (XLSX) |
| IR LED (940 nm) | 379–1039 | 944.8 | (–) | (–) | (<0.1) | 0.2 | Spectrum (XLSX) |
| UVA LED (365 nm) | 330–450 | 371.0 | (–) | (–) | (99.3) | (14.4) | Spectrum (XLSX) |
| UVA LED (385 nm) | 330–450 | 385.0 | (–) | (–) | (94.9) | (84.0) | Spectrum (XLSX) |
| UVA LED (395 nm) | 330–455 | 396.5 | (–) | (–) | (67.3) | (98.9) | Spectrum (XLSX) |
| UVB LED (280 nm) | 200–400 | 281.0 | (32.3) | 67.4 | 0.3 | (<0.1) | Spectrum (XLSX) |
| UVB LED (285 nm) | 200–400 | 283.5 | (23.8) | 75.6 | 0.7 | (0.1) | Spectrum (XLSX) |
| UVB LED (295 nm) | 230–400 | 295.0 | (0.3) | 95.8 | 3.9 | (0.4) | Spectrum (XLSX) |
| UVC LED (255 nm) | 200–400 | 255.5 | (99.2) | 0.6 | 0.3 | (0.1) | Spectrum (XLSX) |
| UVC LED (265 nm) | 200–320 | 266.5 | (95.5) | 4.4 | (0.1) | (–) | Spectrum (XLSX) |
| UVC LED (267 nm) | 200–400 | 267.5 | (93.8) | 6.2 | <0.1 | (<0.1) | Spectrum (XLSX) |
| UVC LED (270 nm) | 200–400 | 270.5 | (88.5) | 10.7 | 0.7 | (0.3) | Spectrum (XLSX) |
| UVC LED (275 nm) | 200–400 | 277.5 | (63.0) | 36.7 | 0.4 | (<0.1) | Spectrum (XLSX) |
| Xenon lamp (pulsed) | 215–441 | 424.6 | (18.3) | 13.7 | 41.0 | (37.8) | Spectrum (XLSX) |
| Xenon lamp (DC operated, XBO) | 210–500 | 468.0 | (7.6) | 8.3 | 31.9 | (61.0) | Spectrum (XLSX) |
| Xenon short-arc lamp (Cermax, VIS–NIR) | 379–1039 | 882.4 | (–) | (–) | (2.6) | 49.8 | Spectrum (XLSX) |
| Metal halide lamp OSRAM HMI 575 W | 200–600 | 546.5 | (1.7) | 7.6 | 28.2 | (69.0) | Spectrum (XLSX) |
| FEL lamp (110 V) | 250–1100 | 893.5 | (<0.1) | 0.1 | 0.8 | 40.4 | Spectrum (XLSX) |
| Halogen lamp (standard illuminant A, 2856 K) | 379–780 | 779.1 | (–) | (–) | (0.5) | 99.8 | Spectrum (XLSX) |
| Deuterium lamp (D2) | 200–400 | 200.0 | (73.2) | 12.6 | 14.2 | (2.3) | Spectrum (XLSX) |
| Medium-pressure lamp (iron-doped) | 200–600 | 546.0 | (5.1) | 11.7 | 45.0 | (49.1) | Spectrum (XLSX) |
Author: Dr. Mark Paravia
Dr.-Ing. Mark Paravia is the managing director of Opsytec Dr. Gröbel GmbH in Ettlingen and heads the accredited calibration laboratory. Following his research on pulsed xenon excimer discharges at the Institute of Lighting Technology at KIT, his current focus is on optical radiation measurement technology. He is a recognized UV expert, vice-chair of the DIN Standards Committee FNL 7 “Optical Radiation,” and a member of the DVGW Project Group on UV Disinfection.
