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Lumidox® II LED Arrays & Lamps


Surface Mat Styles
Array top surfaces come in two styles, Lens Mat and Diffuse Mat.
Lens Mat Solid Side
Lens Mat Surface
  • Ultra-clear, molded to fit into the holes of a Para-dox® Reaction Block
  • Captures nearly all light emitted by the array’s LEDs and directs it into the vials in the reaction block
  • Chemically inert silicone
Diffuse Mat Solid Side
Diffuse Mat Surface
  • Flat surface, making for easy pairing with SLAS footprint apparatus
  • Can be used for niche applications such as illuminating cell culture flasks, reservoir plates, large scale containers, etc.
  • Chemically inert silicone
Diffuse Mat and Vials


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About Array Cooling and Base Options
Lumidox® II LED Arrays can generate a considerable amount of heat at any output stage and therefore need to be cooled. Both Lens Mat and Diffuse Mat style arrays are available with an Active Cooling base, Solid base or Flow-Through base. Each has it’s own specific way of cooling the LEDs in the array and can affect different application situations.

Active Base
Active Cooling Base:
  • Self-cooling, no external cooling source required
  • Fully conforms to SLAS/ANSI standard dimensions
  • Ideal for lower output applications like cell culture and PCR work (may require special adapter)
  • Not compatible with tumble stirrers or devices that generate powerful magnetic fields

Solid Base
Solid Base:
  • External cooling source is required (see Thermal Transfer Deck)
  • A Thermal Transfer Deck (TTD) is recommended and can be attached to the base when used in conjunction with a recirculating chiller. The TTD can be removed if using a different cooling source, such as a cooling bay
  • Fully conforms to SLAS/ANSI standards and can be used with cooling baths, plates, or other cooling chamber (if NOT being used with our Thermal Transfer Deck and recirculating liquid chiller)
  • Ideal for applications requiring high output - up to nearly 3x more radiometric power output than Active Base arrays

Flow Thru Base

Flow-Through Base:
  • Provides the most optimal cooling efficiency for LED arrays
  • Direct connection to recirculating liquid chiller (required). Cooled liquid flows through the array base itself (no need for Thermal Transfer Deck)
  • Ideal for applications requiring high output - up to nearly 3x more radiometric power output than Active Base arrays
  • Light Weight – improved usability with orbital shakers due to lower overall mass
  • Shorter overall height than active base array – offers improved compatibility with tumble stirrers (less distance between stirrer and sample)

Note: Flow-through base LED arrays can only be used with an independent, dedicated recirculating chiller circuit. They cannot be daisy chained with any other hardware.


3 Bases
Note: All LED arrays can operate in an incubator at 37ºC, 95% humidity

For added protection, each device has a built-in thermal cutoff switch that, in case of overheating, will automatically shut down the unit. The trip temperature for Solid Base and Flow-thru Base Arrays is 95°C, and will reset when cooled to 65°C. Active Cooling Base Arrays will shut down if their temperature exceeds 75°C. They will reset once they have cooled to 45°C.

Note: Active Cooling Base arrays are not compatible with strong magnetic fields such as those found in most tumble stirrers due to interference with the cooling fans.

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Lumidox II LED Arrays are available in up to 15 wavelengths*:
365nm UV
375nm UV
385nm UV
395nm UV
405nm UV
 420nm-Violet
445nm-Indigo
470nm-Blue
505nm-Cyan
527nm-Green
590nm-Amber
630nm-Red
660nm-Deep Red
730nm-IR Infrared
810nm-IR Infrared
White
Note: LUM2CON controller is required to power LED arrays.

Lens Mat Active with Patent Colors
* Most LED arrays (excluding Discovery) are wavelength-specific - only one wavelength per device

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LED Output STAGES
By default, Lumidox II LED arrays and LumLamps (not the controller*) are factory calibrated with 5 discrete linearly stepped output STAGES. STAGE 1 output is the least radiometric power while STAGE 5 output is the most. STAGES are calibrated to the nearest whole number of radiant flux, and displayed in milliwatts (mW).



Custom Tuned STAGES
Analytical offers custom tuned stages to meet specific and unique requirements. These can range from maximum light output to low output to tight resolution. *NOTE: STAGE settings are stored on each individual Lumidox® II peripheral device (LED Array or Lumlamp), and are not tunable via the controller. Custom STAGE settings can only be calibrated by Analytical Sales and Services prior to shipment. Please contact Analytical before ordering.

Lumidox II Stages 600
See also: Lumidox®II Radiant Flux and Irradiance Values for LED Arrays

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Typical Spectral Characterization

UV Wavelengths


Visible Wavelengths


Broad Spectrum Wavelengths


Infrared Wavelengths


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Frequently Asked Questions

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Will my LED array function properly in a condensate environment?
Our Lumidox Gen2 arrays are “sealed” with a silicone lens mat or diffuse mat cover. As such, the internal electronics are not exposed to outside elements and can withstand the conditions of high- humidity environments. To reduce condensation, you can wrap the array in an insulating material. Note: LED arrays should never be immersed in liquid. While arrays are built to withstand condensation, full immersion in liquid will almost certainly short the internal electronics.
I ordered two of the same LED arrays and expected their output to be precisely the same. Why aren’t they, and will this influence the reliability and reproducibility of my results?
Each array is individually calibrated, and unless there is a specific request for precisely matching values when ordering multiple arrays, this is completely normal. We can't comment as to the reliability and reproducibility since we don't know your specific process/reaction, but it should be fine. If there are issues, this can always be adjusted in the future (the higher array can be tuned down slightly to match).
I’m looking for a wavelength that you don’t offer. Can you do a custom solution for me?
The breadth of wavelengths offered by Analytical encompasses a wide range of the UV, visible, and IR spectrum. There's a good chance your required wavelength falls within the emission spectrum of one of our existing offerings, meaning you will still see your desired wavelength come through, albeit at a lesser intensity. Please consult the Typical Spectral Characterization on our Lumidox page, or contact our team for more details.
Are discovery arrays calibrated in the same way as single-wavelength arrays?
No. Since there are multiple different wavelength LEDs on each discovery array, radiometric/optical output will vary across the array. Therefore, the arrays cannot be calibrated to show a single output value (in milliwatts) per stage. Instead, output will be displayed as milliamps of electric current, which is the only value common across the array. Please contact Analytical Sales if you need approximations of typical radiometric/optical output for each wavelength based on the displayed current.
What kind of material can I use to block the light from the LED arrays?
Transparent orange acrylic is excellent for blocking UV and blue (365 to 470nm) light. We recommend 1/8" thick material.
Does my LED array require ventilation in an area where VOCs are present?
Yes. Stagnant VOC vapors will permeate the LEDs, potentially leading to discoloration and/or damage, which may be reversible. If sufficient ventilation for VOCs cannot be provided, please periodically run your array on stage 5 for 2-3 hours with a fan blowing on the LEDs to completely burn away all the VOCs and revert the array back to its original state. See Product Note: Lumidox® II LED Arrays and VOCs
Can our LED arrays achieve extremely low output levels?
~5-10 mW of radiant flux is close to the low limit of how far down we can go. Some values may be difficult to achieve if they are below the activation current of the LEDs. For extremely-lower-tuned stages, the ramp-up time is set to be very gradual otherwise the LEDs behave erratically and the array will not function. You could see up to a 30 second delay between when you fire the array and when the LEDs reach the programmed brightness. This will be visually evident. The controller's timer is set to begin only when the LEDs reach the programmed power level, so you can be sure your samples will be receiving the desired power output for the correct length of time.
Can you use 96-position LED arrays for 384-well collection plates?
Customers have found success in using a 96-position diffused array by simply placing it under their 384-well collection plates. When aligned properly, each LED of the array will settle at the center of a quadrant of four wells of the 384 plate (see diagram). This results in even distribution of light across all wells of the plate. An adapter plate can help keep everything centered and aligned. If you send us your plate, or provide a part number (we may have it), our engineering department may be able to make an adapter plate for your needs. The use of a lens mat array with an adapter may also be possible if there is enough geometry to work with.
Is the LED Array’s brightness controlled by pulse width modulation (PWM)?
In short, yes. The Lumidox controller produces a PWM signal which is then smoothed through an LC filter to create a constant current direct drive of the arrays. This filter also eliminates the "flickering" traditionally associated with PWM light devices.
I need to change my output levels for each stage. Can I do this remotely?
Yes, please contact engineering@analytical-sales.com for assistance. We will be able to walk you through the process. Please be sure to navigate to the "Additional Information" tab on our Lumidox controller webpage ahead of time, and download the firmware update files. Within that folder will be an executable file named GUI5R7529.exe. This is the GUI that we will utilize to make the changes to the array. Please contact your IT department if the file is blocked. You will also require the USB Cable that was provided with your controller.
Can you support my need for pulsing of the LED arrays?
We do provide some Python scripts for convenience. These downloadable files can be found under the “Additional Information” tab of the LUM2CON product page. Please note that the use of scripts for the Lumidox controller is experimental and not a supported commercial feature.
Are the Lumidox® II LED arrays compatible with well plates?
Yes, our LED arrays are compatible with any SLAS/ANSI microplate, well plate, cell culture plate, etc. Please note that the use of a well plate adapter may be required for proper alignment.
What can cause the lens or diffuse mats to swell during operation?
The silicone mat may stretch or expand at high temperatures. This is normal, and the mat will return to it’s original size and shape upon cooling down. Avoid removing a 96-well Para-dox reaction block from a lens mat Lumidox array while the system is at high temperature due to potential damage to the silicone lens mat. Allow the array to cool below a safe handling temperature (typically below 45°C).
Can the Lumidox II be integrated with automation systems?
Our Lumidox units are easy to integrate with automation systems, as they were designed with this intention in mind. The serial commands themselves plus some sample Python files can be downloaded from the "Additional Information" tab on our Lumidox controller page. Note that these features are currently experimental, and not yet officially supported. The available commands in Lumidox Controller II – Serial Commands guide should cover all of the tasks needed to integrate and fire the units with your automation platform. Analytical also has "extension" cord sets available to extend the distance the array can be from the controller.
Can a reaction block, together with a LED array and Thermal Transfer Deck be used with a mechanical shaker or magnetic stirrer?
For mechanical shakers, please consult the manufacturer of the shaker for maximum load capacity. We post the mass for most reaction blocks and accessories in the description sections of their respective product pages. You may also find useful details under the "Additional Information" tab on those product pages. Regarding magnetic stirring, the TTD is 25mm tall and we find customers have obtained acceptable stirring.
What is the lifetime of the LEDs?
The LEDs have an approximate lifetime of 50,000 hours when operating under normal, ambient conditions.
What are STAGES?
Stages are radiometric output levels, of varying intensity, selectable by the front mounted controller dial.
My unit turned off, is it broken?
Gen II arrays contain a resettable fuse. If internal temperatures surpass this fuse, the unit will temporarily be prevented from illuminating. Power cycle the device and wait for the array to cool before operating. For Solid Base Arrays, the cutoff temperature is 95°C and will reset when cooled to 65°C. For Active Cooling Base Arrays, the cutoff is 75°C and will reset at 45°C. LumLamp units contain a single use thermal protection fuse. Fuse repair is not possible in LumLamp units.
Who is the manufacturer of the LEDs?
We do not disclose this information, but can confirm that they are sourced from high quality manufacturers, and binned together for uniformity.
Do you offer light and heat mapping of the arrays?
Not at this time.
Is there a way to continuously sweep the light intensity?
This is not currently possible as a custom option.
Do you offer custom array calibration?
If you know what your optical power requirements are for a given wavelength, we can custom tune the units to your desired 5 stages.
Do I need an external cooling system for use with the active cooling base arrays?
The active cooling base arrays have both fans, and a heat sink, so they can cool themselves. Placing the active cooling base on a magnetic stirrer, or near another device that generates a magnetic field, may hinder or stop the active base cooling fans from functioning properly, which could cause the LED array to overheat. 
Do I need an external cooling system for use with the solid base arrays?
The solid base (passive) arrays do require an external cooling source such as a chiller/cooling plate or dry cooling bath.
How efficient are the cooling fans on the active cooling base?
The efficiency of the cooling system is HIGHLY variable based on LED wavelength and type of reaction being catalyzed. As a general guide for informational purposes only, for the 5 default power levels, if starting out at ~20°C you can expect stage 1 to maintain a reactor block temperature of ~22°C, stage 2 to ~27°C, stage 3 to ~35°C, stage 4 to ~46°C, and stage 5 to ~60°C. For additional cooling capability, we suggest using a chiller with a cooling plate (utilizing a liquid coolant) on top of your reactor block.
Are you able to modulate intensity?
Yes, modulating the output intensity is achieved by turning the front mounted dial to the desired output stage.
What are the spectral outputs of the different wavelengths?
Typical spectral outputs can be found here. However, with each array or LumLamp, we provide a unique calibration document that notes this information, specific to the device. See an example of this document
What are the power and output of each LED, and the LED array as a whole?
See Lumidox®II Radiant Flux and Irradiance Values for LED Arrays (pdf)
I’m trying to match the J/cm2 values from a research paper. Can you help me determine how long to expose my samples?
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LED Arrays for TCR

Lens Mat Active with Patent BLUE

96-Position, Single Wavelength LED Arrays

U.S. Patent No. 11,458,447

Use with Para-dox® Standard 96-Position Aluminum Reaction Blocks for photoredox catalysis applications.

96-Position Discovery LED Arrays

U.S. Patent No. 11,458,447 Lumidox® II Discovery LED Arrays for screening offer researchers an economical and time-saving way to evaluate all of the wavelengths that the...

24-Position, 18mm Spacing LED Arrays

U.S. Patent No. 11,458,447

Use with Para-dox® 24-Position Aluminum Reaction Blocks with 18mm Spacing for photoredox catalysis applications.

24-Position, 255nm-UVC Arrays for Quartz Vials

Our 255nm UVC wavelength LED Array opens the door to exciting new applications—from high-energy photochemistry to polymer resin curing and surface disinfection—making...

24-Position, 9mm Spacing LED Arrays

U.S. Patent No. 11,458,447

Use with Para-dox® 24-Position Aluminum Reaction Blocks with 9mm Spacing for photoredox catalysis applications, or HTe-Chem Assemblies...

LED Arrays for Cell/Bio Work

Cell culture or biological applications push the limits of the lower end of the LEDs’ output range. Our novel arming sequence facilitates this by slowly increasing the...

PCR Plate Adapters

If your workflow involves the use PCR plates, then Lumidox® II Lens Mat Arrays are perfectly suited for your research. Lumidox II Arrays generate highly precise,...

Cell Culture Plate Alignment Spacers

Glass Block for Light Reduction (PCR, Cell Culture)

Use to reduce the amount of light intensity delivered to your samples by increasing the distance between the samples and the light source (LED array). Place the Glass...

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Adapters for Gen I Arrays

Lumidox Generation I arrays are backwards compatible with Generation II controllers via the use of an adapter.