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UVP Logo (14,093 bytes)

UVP Transilluminators
UVP Biomedical applications (31,380 bytes)

Since 1932 UVP has been involved in developing solutions, particularly for those who work in the ultraviolet portions of the spectrum. Since the 1980's in particular, owing to the dramatic growth of the genetics industries, UVP developed devices that back illuminate subjects in portions of the spectrum including: ultraviolet, visible, or near infrared. These devices are termed Transilluminators.

The Transilluminator is an illuminating platform that incorporates a flat window below which are ultraviolet and or other lamps. These AC powered devices were developed as a backlighting source for DNA gels. However, the Transilluminator can be used for studies of any transparent subject, or to backlight opaque objects so that their perimeter areas between the front and rear of a sample may be more clearly studied. All UV Transilluminator models incorporate an adjustable UV blocking cover, stainless steel frame for easy cleaning, fast start, flicker free lamps, and the UVG long life filter, and uniformity screen to insure consistent illumination across the panel. We are so confident in the reliability and quality control of these systems that all UVP transilluminators sold by Company Seven are accompanied by a two year warranty.

Examples of Back Illuminated Gel Imaging:

DNA Gel on Transilluminator (28,448 bytes)

stained DNA Gel, in
UVP PhotoDoc-It™ Imaging System

DNA Ethidium Bromide stained Gel on Transilluminator (28,448 bytes)

Ethidium Bromide stained DNA Gel,
taken on transilluminator

DNA SYBR stained Gel on Transilluminator (23,433 bytes)

SYBR stained DNA Gel, image
taken on transilluminator

Coommassie Blue stained DNA Gel on Transilluminator (59,277 bytes)

Coommassie Blue stained DNA Gel,
white light on transilluminator

Transilluminators And Their Differences:

Most Transilluminators for gel applications incorporate multiple UV source tubes of 302nm, these may each be 6 watt or higher capacity. But we also offer higher output models, and models in 365nm, or 254nm, or visible light. Some Transilluminator models can provide two or more wavelength sources for example, the 3UV Transilluminators provide the user with the choice of selecting 254, 302, or 365nm. While the 2UV Transilluminators (LM-20 and LM-26) provide the choice of 302 and 365nm sources. The Model Number will usually* include a designation indicating which portion of the spectrum the set is made to provide with 'S' indicating shortwave, 'M' midwave, 'L' longwave. The White Transilluminators bear the prefix 'TW'. The White/UV Transilluminators incorporate a partioned top plate where one side shows white light while the other shows UV; these bear the 'TW' prefix. The 'V' Visi-Blue™ prefix indicates a model specially made to convert UV light for use with 460-470nm excitation samples, SYBR green, SYPRO orange, and GFP stains.

Some Transilluminators feature the capability to vary the brightness of the source, these units (the M-26V for example) will bear a letter 'V' suffix in the model code. This should not be confused with the Visi-Blue Transilluminators that have a 'V' prefix in their model designations.

The Transilluminators also differ in size, we offer compact models with moderate output sources and we also offer larger models. The largest models will bear will bear a letter 'X' in the model code (the FI-26X for example). The available standard production* illumination panel dimensions are listed in the summary below, but note custom sizes can be produced depending on desired quantity, please inquire.

    Standard Benchtop UV Transilluminators:

    • 10 x 10cm: M-10E 'Mini Benchtop'
    • 15 x 15cm: M-15 and M-15V 'Benchtop'
    • 20 x 20cm: FI-20 'Firstlight™', LM-20 '2UV', LMS-20 '3UV', M-20 and M-20V 'Benchtop'
    • 21 x 26cm: FI-26 'Firstlight™', LM-26 '2UV', LMS-26 '3UV', M-26 and M-26V 'Benchtop'
    • 25 x 26cm: FI-26X 'Firstlight™', M-26XV 'Benchtop'

    High Performance & Specialized UV Transilluminators:

    • 20 x 20cm: TFML-20 '2UV', TFM-20V, TFS-20V, TLW-20, TMW-20, LMW-20
    • 21 x 26cm: TFML-26 '2UV', TFM-26V, TFS-26V, TW-26, VB-26, VB-26V
    • 25 x 30cm: TFML-30 '2UV', TFM-30V, TFS-30V,
    • 20 x 40cm: TFML-40 '2UV', TFM-40V, TFL-40V, TFS-40V, VB-40V
    • 36 x 42cm: TW-43

UVP Mini Benchtop 302nm Transilluminator, Model M-10E (37,351 bytes)

Mini Benchtop Model M-10E
10.25 inch wide x 4.5 tall x 7.25 deep

UVP Firstlight 302nm Transilluminator (26,026 bytes)

Firstlight™ Models FI-20, FI-26, FI-26X
14 inch wide x 5.63 tall x 11 deep

UVP Benchtop 2UV Transilluminator (23,988 bytes)

2UV™ Benchtop Models LM-20, LM-26
single intensity, includes UV 302 or 365nm
14 inch wide x 4.8 tall x 11 deep

UVP Benchtop 3UV Transilluminator (24,629 bytes)

3UV™ Benchtop LMS-20, LMS-26 models
single intensity, includes UV 254, 302 or 365nm
14 inch wide x 5.4 tall x 11 deep

UVP HP 2UV Transilluminator (24,629 bytes)

High Performance 2UV TFML-20, TFML-26,
and TFML-40 models
all: 19.13 inch wide x 5.63 tall x 13.25 deep

UVP HP Variable Transilluminator (23,434 bytes)

High Performance Variable TFM and TFS series
variable intensity source in any one UV band
all: 19.13 inch wide x 5.63 tall x 13.25 deep

UVP White/UV Transilluminator (30,246 bytes)

White only Models: TW-26, TW-43
TW-26: 13.25 inch wide x 4.25 tall x 9.5 deep
TW-43: 16 inch wide x 4.25 tall x 19.1 deep

UVP White/UV Transilluminator (24,356 bytes)

White/UV Models: TLW-20, TMW-20, LMW-20
white/UV 302 or 365nm, or white and 302/365
19.13 inch wide x 5.64 tall x 713.25 deep

UVP Visi-Blue Transilluminator (24,249 bytes)

Visi-Blue™ Models VB-26, VB-40V
VB-26: 14 inch wide x 4.8 tall x 11 deep
VB-40V: 19.13 inch wide x 5.64 tall x 13.25 deep

Transilluminator Converter Plates:

These plates are specially designed to convert the ultraviolet radiation produced by a UVP Transilluminator from one wavelength to another or to white light.

  • UV to White Light Plates convert ultraviolet to white light

  • The Visi-Blue™ Converter Plate converts ultraviolet 302nm to 460-470nm UV

  • The UV/UV Converter Plate converts 302nm to 365nm UV

With convenient grab handles at either end of each plate, simply place the appropriately sized plate over the emitting panel to increase the versatility of your UVP Transilluminator. The patent pending phosphored glass is stimulated by ultraviolet radiation from the Transilluminator and this fluoresces emitting the desired resulting light.

UVP White/UV Transilluminator (23,930 bytes)

UV/White Converter Plates
Converter plate incorporates phosphored glass, when stimulated
by UV this produces White light. For viewing protein stains,
Coomassie blue stained or silver stained media.

PN 38-0191-01: 21 x 26cm
PN 38-0191-02: 20 x 40cm
PN 38-0191-04: 25 x 26cm

UVP White/UV Transilluminator (16,371 bytes)

Visi-Blue™ UV/Blue Converter Plate
Convert UV 302nm to 460-470nm for viewing various
stains including SYBR Green, SYPRO Orange and GF.
Includes amber camera filter used when photographing gels.

Visi-Blue™ PN 38-0200-01: 21 x 26cm
Visi-Blue™ PN 38-0200-02: 20 x 40cm
Visi-Blue™ PN 38-0200-04: 25 x 26cm

UVP White/UV Transilluminator (16,371 bytes)

UV/UV Converter Plate
Convert UV 302nm to 365nm for
preparation and gel excision work.

UV/UV PN 38-0325-01 25 x 26cm



UVP DigiDoc-It system with transilluminator (75,581 bytes) Beyond their conventional applications...

UVP has engineered their Transilluminators to be compatible with:

  • Chromato-Vue® UV Observing Cabinets: the bottom panel of each cabinet may be removed so that the cabinet may be placed onto a Transilluminator to provide back illumination.

  • Some DigiDoc-It® systems (TFM-26V or TFV-30V), and all PhotoDoc-It™ systems incorporate a Transilluminator.

  • The DigiDoc-It®, MultiDoc-It™ , and VisiDoc-It™ imaging systems too are compatible and can be used with an optional UV Transilluminator.

Right: UVP DigiDoc-It® system designed for imaging gels shown with Transilluminator. Components labeled for convenience (75,581 bytes).

UV warning (4,464 bytes) WARNING these Transilluminators are powerful sources of ultraviolet wavelengths, some are invisible to the human eye yet these electromagnetic waves bear high energy and other information. So any structure that absorbs the light can be damaged by this energy; note how sunlight exposure tans the skin while prolonged exposure fades or breaks down materials. The photons of shorter wavelength carry greater energy therefore, these have the greater potential for causing biological damage. These wavelengths can penetrate the eye or skin cells and can produce heating and energy related biological changes that will modify or destroy cellular DNA; this is among the reasons why some UV light sources are used for germicidal (sterilizing) applications.

As amazing as it can be to explore the ultraviolet spectrum, this is not child’s play therefore:

UV safety glasses 1 (93,246 bytes)    it is vital that suitable eye safety protection be used when working with UV light sources UV safety glasses 1 (93,246 bytes)

For more information consult CSA Standard (CAN/CSA-Z94.3-02) Eye and Face Protectors,
or refer to our UVP safety products section.

For an overview about working in the UV read our Ultraviolet Spectrum Primer, the illustrated article by Company Seven explaining the ultraviolet (UV) spectrum as it applies to photographing or imaging objects in the UV and about observing fluorescence, phosphorescence, and tenebrescence. The article explains the different portions UV spectrum including UV-A (long wave), UV-B (mid) and UV-C (short wave). We also host numerous articles and lamp users guides at our Notes & Interesting Articles page.

Ordering UVP Products

Company Seven stocks some of the more popular UVP lamp and cabinet products, and we accept orders for their other products by numerous means. You can also bring your UVP item to Company Seven for repair, or contact us to obtain user-serviceable items (bulbs, grids, etc.). The ways by which you may order products or parts are outlined at , or click here to read that page now.

Company Seven has not become convinced that on-line ordering is always beneficial for the customer, particularly when making a more complicated choice. While on-line ordering certainly is convenient and time effective for the merchant since they do not have to spend time with the customer, the customer is not always making the best choices when buying solely after reading what may be "propaganda" on line. The best ways to make the better choices are to either visit our showroom, or telephone 301-953-2000. This way you can obtain prompt and competent concise assistance which will address your particular needs and concerns.


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