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The UHP-T-DI Ultra-High Power Collimated LEDs provide excellent performance for most demanding applications such as fluorescence microscopy, Optogenetics in-vitro, patterned illumination, whole body imaging and many others.

The unique uniform, Flat Field illumination augmented with high power is achieved by utilizing a single monolithic LED chip (not LED array) technology and aspheric collimator build into the LED head (see example of beam profile).

The UHP-T LEDs are available at several discrete wavelengths, white and unique UHP-T-HCRI-DI (High CRI) broadband white LED.

The unique LED head design of UHP-T-EP-LED features shielded LED head metal enclosure which contains high current driver. The UHPTLCC LED controller performs control functions. This arrangement eliminates much of RFI / EMI interference common in high current light sources. The basic LED controller features 10 turn dial for manual power control and Optically Isolated TTL and Analog Inputs.

The product can be used in various configurations such as collimated LED light source, directly connected to microscope, coupled to liquid light guide or coupled to optical fiber. Modular Multi-wavelength light source can be easily created by several UHP-T units combined by a Beam Combiner. If you need multi-wavelength system please consider Combi-LED light engine.

Please see full list of optional accessories below.


Key Features:

  • Single square Ultra High Power LED chip (>50 Watt) (Not a LED array).
  • Uniform Flat Field Illumination (FFI).
  • Optically isolated TTL input for external triggering (no shutter needed) or strobe operation
  • Optically isolated Analog input (0-5V) for LED power control by external device like D/A interface
  • Computer control via USB by Windows software, LabView VI or uManager (optional)
  • Compatible with Prizmatix modular Microscope-LED Light Source products family - see below for details
  • LED spectrum can be narrowed by band pass filters or a filter wheel.
  • Computer control via USB by Windows software, LabView VI or uManager (optional).
  • Excellent for Optogenetics / fluorescence excitation in Petri dish applications. For microplate illumination please see UHP-T-MP LED series.
  • Stable precisely adjustable power
  • Long life (no lamp or laser tube replacement required)
  • Rapid warm up time

Prizmatix LEDs modular versatility


Optical Specifications

Product P/N Total Power [mW] Normalized Value [a.u.] Bandwidth Power[mW]

Center [nm] Width [nm]

Wavelength (nm)  

 Beam Profile Measurements

  • Typical Beam Profile for UHP-T-WCS-DI, UHP-T-WDS-DI, UHP-T-WSS-DI LEDs
  • Scan area: 120x120 mm; grid: 30x30 data points

 Benchtop LED Current Controller Specifications

Prizmatix offer several types of UHP-T-LED current controllers each optimized for specific requirements.

UHPTLCC-02: Analog controller featuring precision power control by 10 turns potentiometer or by Analog input. TTL input is provided for fast On/Off strobing.

UHPTLCC-02-USB : Manual or Computer power control via USB. TTL input is provided for fast On/Off strobing. Reference photodiode can be connected to monitor the actual output power.

UHPTLCC-02-STBL: Like UHPTLCC-02-USB but with power stabilization enabled for long illumination periods (typically hours).

To choose the one that best fit your application please visit UHPTLCC controller page.

UHPTLCC-02 LED Controller
Click to enlarge

Electrical Specifications:

Connectors for TTL and Analog Input   Optically isolated BNC
Digital modulation frequency Hz DC-50000
Rise / Fall time μs <2/<2
Analog input voltage range V 0-5
Analog modulation frequency Hz DC-~100
Current controller supply voltage V 12
Power adaptor input   85-264 VAC, 47-63Hz, 1.5A

General Specifications:

Operation temperature range °C 10-35
Storage temperature range °C -10-55
Operative relative humidity (Non condensing) % <90
Dimensions See drawing below
Head weight g 350
Controller dimensions (L x W x H) mm 197 x 174 x 80
Controller Weight g 400
Power adaptor dimensions
(L x W x H)
mm 167 x 67 x 35
Power adaptor weight g 590
Power adaptor safety  
LED Head fan noise dBA 38

Mechanical Drawings

Standard UHP-T LED head:


The front thread is fully compatible with Thorlabs SM1 (1.035″-40) components for 1 inch optics. To connect directly the LED head to the epi-fluorescence port of fluorescence microscope, please use Microscope Adaptors (shown as items #8 in Optional Accessories section below).

When microscopy application requires prolonged illumination periods in continuous mode the cooling fan may be activated and disturb the imaging. In such cases please consider detached fan option as described in the drawing below:


  * Specifications subject to changes without notice

Optional Accessories

For full details on optional accessories please see:



All Prizmatix's LED light sources can be easily configured for use in a wide variety of applications by simply adding further components. These use a standard 1.035″ 40TPI thread (SM1 compatible) or Prizmatix's 4-pin connection system.

The following table summarizes the most popular accessories according to application, further information on individual part can be found below the table. Custom solutions are also often available at a low cost: please contact us with your specific requirements.

Prizmatix Ultra High Power LED Light Source [1]

Any type of Prizmatix Ultra High Power LEDs can be combined to form multi-wavelength system. For more information on specific types please see following links:  Mic-LEDs,  UHP-LEDs.

Beam Combiner [2]

Beam Combiner module joins two discrete Prizmatix LEDs into one output beam using a built-in dichroic mirror at specified cut-off wavelength .
The beam combiner has additional port that can be used for connection of monitoring photodiode.

FCA - Fiber Coupler Adaptor [3]

All Prizmatix LED heads can be easily changed from collimated LED source to fiber coupled LED configuration by means of Fiber Coupler Adaptor (SMA, FC or ST connector). .
For more details please see video clip

Fiber patch cords [4]

Various fiber optic patch cords are available. Most popular patch cords are 1000 / 1500 / 2000
micron core diameter Polymer Optical Fibers (POF) terminated by optical SMA or FC connectors.
For Optogenetics applications Dual or Triple Y shape bundles can be useful for multi-site activation.
For spectroscopy application special fiber optic bundles are very important. Care must be addressed to eliminate possible cross link between the excitation and the collection fibers. See more info here.

Rotary-Joint [5]

Prizmatix Rotary Joint is especially designed for Optogenetics experiments with High NA fibers equipped with FC connectors. Due to very low friction and smooth swivel the rotary joint is suitable for use even with small mice. See more info...

Beam Switcher [6]

The Beam Switcher accessory allows for Prizmatix LEDs installed on a microscope to be used either as microscope epi-fluorescence illumination or illuminating a specimen via a fiberoptic probe this feature especially useful for in-situ Optogenetics studies. See more info...

Filter Wheel [7]

The manual 6 positions filter wheel can be especially useful for White LED sources. The Filter Wheel can be installed at the beam output of LED or a Beam Combiner. See more info...

Microscope Adaptors [8]

Adaptors enabling connection of Prizmatix LED light sources to epi-fluorescence light port. Adaptors for Nikon, Zeiss, Olympus and Leica microscopes are available. See more info...

LLG-A Liquid Light Guide Adaptor [9]

The LED system can be quickly and easily attached to Liquid Light Guide by means of LLG-A Adaptor. For more details please see video clip

LLG-3 / LLG-5 [10]

The Liquid Light Guide is a common way to connect light source to microscope epi-fluorescence port. Prizmatix can provide 3mm or 5mm core LLGs.

LLG-C collimator XYZ [11]

The Prizmatix LLG collimator is an XYZ adjustable collimator for 3mm core Liquid Light Guide (LLG-3) with adaptor for the epi-illumination port of fluorescence microscopes. This collimator can be equipped with Nikon, Olympus, Zeiss or Leica adaptors. See more info...

C-Mount Adaptor [12]

A standard C-mount thread adaptor (1-32 UN 2A thread), usually used to connect to trinocular microscopes.

Collimator [13]

The output from optical fiber is divergent relative to fiber NA. In order to reduce the divergence angle a collimator module can be used. Prizmatix's collimator is especially designed to fit thick core high NA polymer optical fibers. See more info...

Reference Photodiode [14]

Prizmatix reference photodiode is useful in order to monitor LED source power over time in experiments required exceptional stability over long time period. See more..

Optogenetics-Fiber for in-vivo [15]

Prizmatix provides a full solution to the optogenetics in-vivo and in-vitro fiber optics. Made of silica or polymer high NA fibers, the high NA fibers are assembled to fit any research set-up with various combinations of connectors, ferrules, core diameters and lengths. This is example of a Y-shaped fiber for simultaneous in-vivo stimulation of two hemispheres. See more info...

Implantable Cannulae [16]

Prizmatix Implantable Fiberoptic Cannulae / Ferrules allow direct light stimulation of certain deep brain regions in living animals. Each Cannula consists of a Zirconia ferrule accommodating a high NA Silica optical fiber, protruding from the Zirconia ferrule at a desired length. See more info...

Optogenetics-Fiber for in-vitro [17]

Prizmatix provides a full solution to the optogenetics in-vivo and in-vitro fiber optics. Made of silica or polymer fibers, the high NA fibers are assembled to fit any research set-up with various combinations of connectors, ferrules, core diameters and lengths. This is example of a fiber with stainless steel tip with protruding bare fiber for in-vitro activation of brain slices under a microscope. See more info...

Pulser [18]

The Pulser USB to TTL interface box with user friendly software is an easy way to generate trains of pulses for Optogenetics activation directly from your computer. See more info...

USB-TTL Interface [19]

The microprocessor based device enabling simple control of Prizmatix LED sources from Windows based computer via USB.

Application Examples:

Optogenetics LED Light Source:

Optogenetics illumination sources include lasers and LEDs, and photoactivation can be done under a microscope or via a fiber for in-vitro or in-vivo applications. Using a Prizmatix LED illumination system for optogenetics studies provides many advantages compared to laser-based systems.
Read more... 

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