This item is a universal/custom fit component, and does not have any direct standard/OEM model application.

Read ( 13 ) Reviews

Signal Dynamics Corporation Plug and Play Headlight Modulator

J&P Cycles Part Number: 445-956

Manufacturer Part Number: 01015


Gold Club Price: $61.19

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Description for Signal Dynamics Corporation Plug and Play Headlight Modulator

• Now there is no need to cut or splice wires in order to install a headlight modulator on your bike!

• With the Plug & Play Headlight Module, simply select which harness is needed for your bike, then plug it all together

• Note: Harness' sold separately

• Toggle Modulation ON and OFF: The modulation of the headlight can be toggled on and off by the user at any time

• Auto Night Shut-Off: The Diamond Star Headlight Modulator is designed to automatically turn on and off at specific light levels in order to comply with the DOT's regulation of no night time modulation

• To Switch From Max to Min Mode: The Diamond Star Headlight Module is equipped with two levels of modulation to meet your visibility requirements. (Both are fully DOT compliant).

• Heads Up Alert : The Diamond Star Headlight Module can be connected to your bikes horn wire in order to add a visual alert to your horn's audible alert

• Please Note: as per D.O.T. regulations, the Heads Up Alert feature DOES NOT work at night

• Emergency Headlight Feature: The Diamond Star Headlight Module is constantly monitoring the bulb that you have selected (high beam or low beam). In the event the bulb(s) should fail; the alternate bulb(s) will instantly be turned on

• No Excessive Heat Build-Up: Handles high power demand sealed beam and halogen headlights totaling up to 130 watts! Operates efficiently with only slight increase above ambient temperature at continuous max headlight power rating

• Surge Protected: Internal protection against transient voltage spikes during engine starts or charging system operation. Also drops out if voltage is too low, avoiding problems associated with low voltage

• Compact Size - 2-1/4″ long X 1-5/8″ wide X 5/8″ high

• Weather Resistant Heat Sink Case

• Requires purchase of 445-957, 445-958 or 445-960 to complete install

Product Specs

Product Specs for Signal Dynamics Corporation Plug and Play Headlight Modulator

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Fitment Note:

This item is a universal/custom fit component, and does not have any direct standard/OEM model application. Some items may require modification and an advanced level of mechanical skill and/or knowledge for installation.

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Customer Reviews

Customer Reviews for Signal Dynamics Corporation Plug and Play Headlight Modulator

Overall Rating

5 out of 5 stars (based on 13 reviews)

5 stars (12)

4 stars (0)

3 stars (0)

2 stars (0)

1 star (0)

0 stars (1)

BENNY on 5/20/2019

works like it was advertised

GEORGE on 4/29/2019

Easy to install and works great...

guitars-plus on 5/30/2017

did not say in add that you had to use standed light bulb only, i had h4 up grade

TK1948 on 1/13/2017

Installation was simple enough, but what you don't know is that the modulator in NOT compatible with HD LED Day Maker light. Sadly disappointed. This info was supplied by the manufacturer. :(

Tactical11 on 8/18/2016

Easy to install with the optional harness and works reliably and great. On my 3rd one as had one on my old Evo and on 2nd one on '07 Road King. First one burnt out prematurely after 3 yrs. but well worth the cost and time to install. Noticed many times cagers about to pull out from side roads or driveways and stop short when they see the flashing headlight.

keithledford on 5/27/2016

Works great, and I think a great safety item.

srd5760 on 8/19/2015

I feel much safer riding during the day knowing my pulsing headlight will grab the attention of the cage drivers.

mfinger on 8/10/2015


westernbrook on 6/11/2015

We don't have any suppliers here in the U.K. that hold a range of products anywhere near that of J & P's. Service, Price & Delivery speed is excellent and the Web Site is brilliant!

RMourdock on 1/26/2015

Modulator works great... very noticeable to traffic. On my 2012 Honda Stateline it took three sets of small hands to get all the wires stuffed back into the headlight canister.. IMPORTANT NOTE: if you install while located in a well lit garage and turn on the key.. don't be surprised if it doesn't work initially... roll it out into the daylight and odds are it will work perfectly. When it failed to work when I first turned the key I was livid... we rolled it out into the daylight and wham, bam... blinky, blinky, blinky......

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