Mightex LED Spotlights


High-power LEDs are a new class of light sources that have numerous applications in industrial, consumer, medical, and scientific fields. However, engineers and scientists often find that they have to design and fabricate heat sinks and optics mounts, and solder electrical contacts before they can light up a high-power LED. Mightex provides ready-to-use high-power LED light sources with integrated heat sinks and mounted collecting optics. SiriusTM compact high-power light sources are designed as a universal light source for general lab use and OEM applications. The mechanical housing features multiple mounting holes compatible to common opto-mechanical mounts. SiriusTM light sources can be driven by Mightex SiriusTM SLC series multi-channel LED drivers or other LED drivers and current sources.

Available wavelengths / light colors include visible, NIR, white and UV.


The heat sink (P/N: ACC-SLS-HS) is recommended for heat dissipation.


  • Machine vision
  • Displays
  • Microscopy
  • Semiconductor equipment
  • Testing instruments
  • Medical instruments
  • Lighting
  • Fiber bundle coupling
  • 1W and 3W high-power emitters
  • High-efficiency collecting optics
  • Precision machined aluminum housing
  • Multiple mounting features for lab and OEM applications
  • Round and oval illumination profiles



Click here to download datasheet from manufacturer's website.


Datasheet Download:


IMPORTANT : (1) LED’s can ONLY be driven by a constant-current source, and NOT a voltage source (e.g. a battery, or a AC/DC power supply etc.); (2) Please always verify LED’s current rating first before applying current to the LED, and please always make sure NOT to apply current that is above the LED’s current rating.




About Mightex High Power LED Light Sources

Selecting a Microscopy LED Light Source

1. Select LED Wavelength

Emission Spectra
Multiple Available Wavelengths  (Click to enlarge. Also see: Specification Sheet; Manufacturer's website)



2. Select LED Configuration


Mightex Microscope LED Light Source Configuration
Single-Wavelength:      Type A, Type B, Type J & Type H



Mightex Microscope LED Light Source Configuration
Multi-Wavelength:       Type A, Type B, Type J & Type H



Mightex Microscope LED Light Source Configuration
Wavelength-Switchable:     Type A



3. Select LED Controller

Mightex Microscope LED Light Source Controller Option
Manual/Analog:       BLS-1000-2, BLS-3000-2, BLS-13000-1, and BLS-18000-1


Mightex Microscope LED Light Source Controller Option
Manual/Software/Analog/TTL          BLS-IO04-US



4. Microscope Coupling

Microscope adapters are available for all major manufacturers (Nikon, Olympus, Leica, Zeiss). If you have a different microscope, please contact us.

Mightex Microscope LED Light Source Configuration


Mightex Microscope LED Light Source Configuration
Lightguide-Wavelength Microscopy



LED Application Examples

Abdelfattah AS et al., Bright and Photostable Chemigenetic Indicators for Extended In Vivo Voltage Imaging – Science (2019)
Abdelfattah et al., developed novel chemigenetic indicators for in vivo voltage imaging in neurons. To illuminate their indicators, the group used Mightex’s Microscope LEDs.

Crandall SR, et al.,  Infrabarrels Are Layer 6 Circuit Modules in the Barrel Cortex that Link Long-Range Inputs and Outputs – Cell Reports (2017)
In this work, Crandall et al., used Mightex’s Microscope LEDs to optically stimulating different neuronal pathways connecting to pyramidal neurons found in L6 of the whisker somatosensory cortex of mice.

Higgs MH, Measurement of Phase Resetting Curves Using Optogenetic Barrage Stimuli – Journal of Neuroscience Methods (2017)
To study phase resetting curves in vivo, Higgs and Wilson used Mightex’s Microscope LEDs to establish whether their novel method of optogenetic barrage stimulation would work during extracellular spike recordings (a recording method often used in in vivo experiments).



Also See:


Microscopy LEDs

by Mightex
(manufacturer's website)




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