Universal Round LED Cluster

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Custom LED


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  • 1.85" diameter Universal LED Cluster with ColorChange for Run and Turn operation, or Run and Brake operation.
  • Fits stock Harley-Davidson blinker housings with simple retrofit!
  • Fits many hot-bodies undertail led cluster housings. See DIY write-up here.
  • Replaces common MR-16 type aftermarket lamp housings (same diameter).
  • Note: requires adequate weatherproofing, enclosure not included.
  • Can be configured for running light, brake light and blinker operation! (4-wire conversion pack required).
  • Sold as EACH.
  • Made in the USA.
  • Ships within 1-2 business days.


The Custom LED 1.85" Universal Round LED Clusters feature 18 ultra bright running light LEDs in your color of choice, and 16 ultra bright turn/brake LEDs in either red or yellow.  The LEDs and ColorChange Technology is tightly packed on the PCB for the tightest power density possible.  The total thickness from the top of the LEDs to the bottom of the circuit board is only ~0.45".  These LED clusters are amazingly bright!

With a simple three-wire configuration, the clusters have a Run input (primary LEDs on), a Turn or Brake input (secondary LEDs on), and a common ground.  The on-board ColorChange technology will automatically shut-off the Primary LEDs anytime that the Secondary LEDs come on.  This way there is no color-mixing, and the turn or brake indication is a pure color and distinguishable.

Example: a White primary/Yellow secondary setup would be bright white for running light, and would alternate between white and yellow when a turn signal is on.

For Run, Brake AND Turn function, add our 4-wire Conversion Packs, and now you have Run (dim primary), Brake (bright primary), and Turns (bright secondary).  You would want to choose the RED PRIMARY/YELLOW SECONDARY configuration for this setup.


The Custom LED 1.85" Round Clusters come as shown in the pictures.  There is no mounting hardware or enclosures provided.  Mounting can be achieved simply with hot-glue, or double sided tape.  Care must be taken to prevent shorting the exposed solder points on the back of the PCB.  The Clusters are not waterproof, so they must be enclosed in a suitable enclosure.  As mentioned above, the 1.85" dimension is similar to that of an MR16 lamp which is commonly used in aftermarket turn signal housings.

Wiring the Round Clusters is as simple as any 3-wire setup:

  • Red: Run +12V (illuminates the Primary LEDs)
  • White: Turn or Brake +12V (illuminates the Secondary LEDs, and shuts off the Primary LEDs)
  • Black: Ground

As with any LED blinker modifications, additional accessories may be required to maintain the normal blink rate after removing incandescent blinkers, and installing LED blinkers.  The correct solutions to these issues are covered in our Frequent Questions section of our website.

Customer Reviews

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  • Questions (2)

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United States

Custom led

Loved it!!!!! So bright!!!!!!!

Jason M.
United States

HotBodies UnderTail LED’s

Although, I have yet to install these LED’s there area several great points to be made thus far. First, “MADE IN USA”! The entire ordering process was incredibly simple, and the website provides plenty of information for questions. Packaging and shipping was fantastic with detailed installation instructions. The craftsmanship of the LED’s is leaps and bounds above the ones that will be replaced. With the increased number of diodes, the safety margin will certainly be increased. Overall, quite pleased with the purchase and look forward to installing them on my RC51 project.

Kurtis K.
United States

LED upgrade for hotbodies undertail

I bought these to upgrade the factory taillights on a hotbodies under tail and the they work great. Now my running lights, brake lights and turn signals are all in one sleek little round led light. And they are nice and bright. Highly recommend

Lake Wales, Florida

Bought these to upgrade my 01 GSXR hotbodies undertail

My hot bodies undertail lights were so dim, that I was uncomfortable riding especially at night. They were unsafe and potentially illegal. These clusters along with blaster-x module, was such a great investment. Now my LEDs are so much brighter and they flash thanks to the blaster-x. CustomLED makes some top of the line, high quality, and functional products. I'm impressed with what this company does and they are highly recommended by me! If it wasn't for this company, I would still be riding unsafe with those dim led tail lights. Thank you CustomLED!!

buffalo, ny

I ordered two 1.85" round clusters to replace the taillights in my hotbodies und

I ordered two 1.85" round clusters to replace the taillights in my hotbodies undertail for my cbr 600 f4i. They were a vast improvement! Very high quality stuff. I wish you guys sold an external blaster x controller so I could wire that to my clusters!

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