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TST Universal Brake Light Modulator

TST Brake Light Modulator - shown with Universal tail light wire kit. Included wiring kit helps to make your installation as easy as possible. Plug breakdown of the TST Brake Light Modulator Harness. The Brake Light Modulator has a removable cap that enables you to access controls. Choose the light mode and speed of the effect using the controls within the Brake Light Modulator capsule.

TST Universal Brake Light Modulator

Add 3 programmable brake light modes to your motorcycle's tail light with this easy to install TST Universal Brake Light Modulator.

This is a universal kit that requires custom wiring. The included wiring kit is intended to make that job as easy as possible.

SKU 10277, 10423, BLMH-1000
Weight 0.15 LBS
Price: $44.99
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If buying this product as part of the Buy Together bundle below, define these options there.


  • Adds 3 brake light modes to your motorcycle's tail light
    • Brake light modes: Strobe, Pulsar, Intermittent
  • Removable capsule cap enables easy programming of your light mode
  • Provides a valuable safety feature that demands attention while you are coming to a stop
  • Fits most tail lights with our included wiring kit
  • Handles up to four amperes of current


Do you wish your brake light had different light modes? We've got you covered! Our TST Brake Light Modulator is your solution to adding an important safety feature to your brake light. This modulator enables 3 selectable brake light modes to your tail light - standard, strobe alert, or pulsar brake alert. Slowing down for a stop or hard emergency braking can put you in a lot of danger, so do everything you can to make sure your brake light grabs the attention of the driver behind you!

Need help with installation? Click HERE to view a wiring diagram that demonstrates the correct wiring procedure.

This kit requires that you perform some custom wiring.

LIGHT REQUIREMENTS: Should only be used with LED tail lights or OEM tail lights with upgraded fast-reaction incandescent bulbs or LEDs.

PLEASE NOTE: The circuitry is designed to handle up to 4 amperes of current. That means the unit can power up to two 27 Watt bulbs, or a single 54 Watt bulb. In most of today's automotive tail lights, the light source is provided by LED's. These lights typically draw less than one ampere of current and are well within safe specifications for current draw for our brake light modulator. Older lighting systems still use incandescent bulbs rated in watts. Each bulb has the wattage rating stamped or printed on it. Please ensure your lighting system will be compatible with the maximums of current draw of the brake light flasher unit before you make your purchase.

Please note this item is not DOT approved and may not comply with the laws and regulations in your area. See our Terms & Conditions for more information.


  • TST Brake Light Modulator
  • Universal Wiring Kit
  • 1 Year Warranty (See our warranty policyhere)

WARNING: Cancer and Reproductive Harm -


Customer Reviews:

Average customer rating:
(2 reviews)  

2 Most useful customer reviews (see all reviews):
Joshua M Carlson
Jun 23, 2019
Thnde kit and programmed features are great. The modulator works well and has easily programmed settings allowing for flash timing speed, Programmed flash and flash to solid and and standard are all easily changed. Installation is easy with some knowledge of which wires go where and a basic metric set of ALLEN wrenches. (universal kit) Overall the kit performs well and with some brands of motorcycle plug a play kits are available. Suzuki is not one of them, I would like to think yet..... not that it matters now that I have mine hooked up. I give this kit a 5 star rating for overall quality and ease of install. Considering it is the **UNIVERSAL** kit you will have to use your head to get the correct wires in the correct spot. The kit also is easy to hide from view so the its like it is a factory install. Video coming soon. Installed on a 2017 GSXR 1000

Advantages: Quality, Easy to program, and Install. The universal kit will install on any brand of Motorcycle. There is also a plug and play kits for other brands of bike.

Disadvantages: splicing the wires and figuring out the correct wires. The wires on my 2017 Suzuki GSXR 1000, didn't even have the sames color wires on the factory harness at the connection, let alone the universal harness.
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Melmar Agaran
May 4, 2019
This customer purchased the item at our site.
Great product, would have given this a five star if it only came with instructions or indication of what was the output side or vice versa of T-harness. I figure it out that the red wire from brake modulator (one of the yellow wires on T-harness) goes to bike harness side and the blue wire from brake modulator (the other yellow wire on the T-harness)
is the output side which goes to taillights.

Advantages: Easy to install as long you find out wires goes to what.

Disadvantages: None, at this time.
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