Spectroline® transilluminator are designed to deliver optimal UV intensity and extremely uniform UV emission to guarantee clear and reproducible results.

Spectroline transilluminators provide the maximum fluorescent response for nanogram sensitivity with minimal UV damage to samples with a variety of choices in wavelength, wattage, filter size, and variable intensity controls. Each unit offers high intensity, uniform UV emission, and cool operation. They feature a wide variety of UV filter glass sizes to accommodate different sizes of gels and blots, as well as rugged construction and simple operation.

When working with UV models, attention should be given to the age of the UV tubes, as this will affect the sample fluorescent signals. As the UV tubes age in any transilluminator, their output steadily declines to make faint bands more difficult to see. This can result in lack of positive results and incorrect densitometric measurements. Regular replacement of UV tubes is suggested, particularly for transilluminators that are shared or heavily used.
Currently not available in CE rated housings; not for sale in the European Union. 
Where to Buy

LONGLIFE™ UV Filter Glass
Inhibits solarization up to 50 times longer than traditional UV filters

Easy-to-Clean, Rugged Housing
Composed of durable, stainless-steel filter frame welded to scratch-resistant painted metal

Powerful Cooling Fan
Maintains low filter glass temperature to eliminate surface heat buildup

Minimal UV Damage
312nm and 365nm models virtually eliminate transmission of 254nm radiation

Special Diffusing Screen (D)
Ensures superior surface uniformity by eliminating striations caused by the contours of the tubes; provided on all 312nm and 365nm models

Variable-Intensity Control (V)
Provides continuous intensity adjustments from 100% down to 20% for maximum sample preparation time and sensitivity

On/off Switch (S)
Controls power to the unit

Automatic Shut-Off Timer (T)
Prevents UV overexposure; doubles as on/off switch

Hinged UV-Blocking Cover (C)
Adjustable to a comfortable angle providing the end user with a clear view of surface access for sample manipulation. Eliminates the need for additional UV-absorbing clothing or face wear and protects the filter surface from accidental damage

Standard Series, Single Wavelength UV


  • 15-watt units provide high UV intensity
  • Fixed-intensity models include TS-, TC-, TR- and TL-series
  • Variable-intensity models with UV-blocking cover include TV-series
  • Models accommodate a variety of sample sizes
  • Housing dimensions (W x L x H): 18.5″ x 19.25″ x 4″, 34.3 x 48.9 x 10.2cm
  • Available in 120V/60Hz, 230V/50Hz, 240V/50Hz and 100V/50-60Hz

Our high power (15-watt) Standard Series units provide unsurpassed UV intensities and UV irradiance to produce brilliant fluorescent responses and highest clarity. Ideal for revealing even trace amounts of DNA! Models available in various UV wavelengths, fixed and variable intensity, filter sizes, timer options and UV-blocking covers.

Bi-O-Vision™ Series, UV/White Light Combination

  • tvd-1000r8-watt units provide standard UV intensity
  • Side-by-side UV/white filter sections
  • Available in fixed and variable intensity models
  • Housing dimensions (W x L x H): 18.5″ x 19.25″ x 4″, 34.3 x 48.9 x 10.2cm
  • Available in 120V/60Hz, 230V/50Hz, 240V/50Hz and 100V/50-60Hz

Bi-O-Vision™ UV/white light transilluminators offer both medium wave UV (312nm) and white light for dual-light convenience in one box. Each side of the sample platform fits samples up to 8″ x 8″ (20.3 x 20.3 cm). For added safety, only UV or white light can be selected with single UV/Off/VIS toggle switch.

The TD-1000R model offers fixed-intensity while the TVD-1000R offers variable-intensity control of either UV or white light. These units are continuously adjustable from 100% down to 50%.

Select™ Series, Single/Dual-Wavelength UV

  • ts-312eEconomical 8-watt units provide standard UV intensity
  • Fixed-intensity 312nm models accommodate a variety of sample sizes
  • Dual-wavelength models include TD-series
  • Housing dimensions (W x L x H): 12” x 13.25” x 3.5”, 30.5 x 33.7 x 8.9cm
  • Available in 120V/60Hz, 230V/50Hz, 240V/50Hz, and 100V/50-60Hz

Select™ Series transilluminators offer all the features and benefits of our standard fixed-intensity series but designed with a cost effective housing. Dual wavelengths, in combinations of 365/312nm, 312/254nm, and 365/254nm provide broader UV applications. Single and dual-wavelength models accommodate a variety of sample gel or blot sizes, with rugged construction and simple operation. All Select™ series units feature hinged UV-blocking cover to protect the user from radiation and UV filter glass to inhibit solarization.

Slimline™ Series, Single Wavelength UV

  • te-312sIdeal for mini gels and samples
  • Cost effective, (4) 8-watt UV tubes
  • Fixed-intensity models include TE-series in various wavelengths
  • Housing dimensions (W x L x H): 11.5” x 14” x 2.5”, 29.2 x 35.6 x 5.7cm
  • Available in 120V/60Hz, 230V/50Hz, 240V/50Hz and 100V/50-60Hz

Slimline Series™ transilluminators feature a small filter glass that measures 4.3” x 5.5” (11 x 14 cm), making them ideal for working with mini gels. This unit’s slim profile uses only four UV tubes − reducing operating cost and UV exposure, while still delivering performance comparable to our standard models.

Diffusing Screen: All 312nm and 365nm models come with a unique, removable, polymer-based diffusing screen that ensures uniform UV emission and excellent irradiance uniformity at the sample surface. It also improves the quality of photographic images.

LONGLIFE™ Filter Glass: Found on all 254nm and certain 312nm models (2F-assembly series), this special filter glass inhibits solarization up to 50 times longer than traditional UV filters.


Model Size (W x L x H) Fits
UVC-100A Cover 10.75″ x 12.0″ x 1.0″, 27.3 x 30.5 x 2.5cm Slimline and Select Series
UVC-250A Cover 18.0″ x 13.0″ x 1.0″, 45.7 x 33.0 x 2.5cm TC-, TD-, TL-, TR-, TS- and TV-Series
UVT-75A Filter Protector 13.75″ x 10.0″, 0.4″, 34.9 x 25.4 x 1.0cm Slimline and Select Series
UVT-150A Filter Protector 19.2″ x 12.2″. 0.4″, 48.8 x 31 x 1.0cm TC-, TD-, TL-, TR-, TS- and TV-Series