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Hopkins Tail Light Converter - LED Compatible

Hopkins Tail Light Converter - LED Compatible

Item # HM48847
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Our Price: $26.73
Trailer Wiring
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Shipping Weight: 0.23 lbs
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This tail light converter combines your vehicle's independent brake light and turn signal to make them functional with your trailer's lights. Converter works with either incandescent or LED tail lights. 4-Way connector sold separately. Lowest Prices for the best trailer wiring from Hopkins. Hopkins Tail Light Converter - LED Compatible part number HM48847 can be ordered online at or call 1-800-940-8924 for expert service.
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Hopkins Trailer Wiring - HM48847

  • Trailer Connectors
  • Trailer End Connector
  • 3-to-2 Converter
  • Hopkins

This tail light converter combines your vehicle's independent brake light and turn signal to make them functional with your trailer's lights. Converter works with either incandescent or LED tail lights. 4-Way connector sold separately.


  • Tail light converter adapts your tow vehicle's 3-wire tail light system to your trailer's 2-wire tail light system
    • Combines your vehicle's independent brake light and turn signal functions
    • Makes your wiring compatible with common trailer tail light lighting
    • Works with LED and incandescent lights on vehicle
  • Compact size is easy to stow in an out-of-the-way location like your trunk
  • Simple installation - hardwires into your vehicle's wiring
    • 4-Way flat connector to connect wiring to your trailer not included


  • Maximum power: 2.1 amps per output
  • 90-Day Warranty

48847 Hopkins Electronic Tail Light Converter - LED Compatible

California residents: click here

Video of Hopkins Tail Light Converter - LED Compatible

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of Hopkins Wiring - Trailer Connectors - HM48847

Michael: Hi there. I'm Michael with Today we're taking a look at the Hopkins Tail Light Converter. This is going to adapt your vehicles independent brake lights and turn signal functions into a single brake and turn signal for your trailer. It's going to work with most of your common trailer tail light lighting. It's going to work with LED and incandescent lights on your vehicle, so you don't have to worry about that.

It is pretty compact. Let's see, it's only about three inches long, and close to about two and a half inches tall. It's going to fit easily within your vehicle, whether you want to store it in your trunk or behind your tail light housing.Now, the thing about this that I will tell you is it is not the simplest converter that I have seen for vehicles. It is going to require you to cut into your vehicles wiring. If that's not something that you are comfortable with then we do have many different options for your taillight wiring here at

I would recommend you search for plug-in vehicle wiring harness in our search bar, and find one that's going to work for your vehicle. It's going to be a lot easier. You can just plug it into your tail lights and you're not going to have to do any cutting. But if you are up for a little bit of trimming and splicing this can work for you.You're going to put the four.. Sorry, five end of the converter into your vehicle.

Your white is going to be your ground obviously, your brown is your tail lights, your yellow is your left turn, your red is your brake, and your green is your right turn signal. You'll splice the wire going to your lights for those functions. I would also recommend while you're buying this to go ahead and pick up some heat shrink butt connectors to make those splices. You can find them here at etrailer using part number DW05744-10. You'll put the line coming into your tail lights.

You'll put one end in the butt connector, and then put the line going out to your taillights and to your converter, and the other end crimp the butt connector down. You can heat shrink that if you're using one of the heat shrink butt connectors to help protect your connections.Then over here, you'll do pretty much the same thing for your 4-pole flat connector. It's not included in this kit. You'll have to pick that up separate. If you don't already have one we do have them here at as well. You can use part number HM38138 to find that. You'll again, make your connections, put your butt connector on both ends, crimp those down, secure your connection there. You do want to be sure that you test your wiring for the function, and you don't just go off of the color, because sometimes trailers are wired in a way that is not going to be compatible with the wiring that's here. Make sure that you are sending your white to your ground, your brown to your tail lights, your yellow to your left turn, and your green to your right turn on your trailer.This is going to be capable of a maximum power of 2.1 amps per outlet. That's going to give you about two bulbs, so you'll have one bulb for your stop and turn, one bulb for your. Sorry, one bulb for your right stop and turn, and one bulb for your left stop and turn. Any more than that you are going to need a power converter. This converter does come with a 90 day warranty from Hopkins. That's going to complete our look at the Hopkins Tail Light Converter.

Customer Reviews

Hopkins Tail Light Converter - LED Compatible - HM48847

Average Customer Rating:  4.9 out of 5 stars   (20 Customer Reviews)

This tail light converter combines your vehicle's independent brake light and turn signal to make them functional with your trailer's lights. Converter works with either incandescent or LED tail lights. 4-Way connector sold separately.


Worked great to wire my tail light on my atv for signal lights


The converter allowed an old trailer to upgrade to LED lights. Brighter and integrated turn and tail. A year later still going strong.


Just what I needed. Quick, efficient and competitively priced. Thanks!


Got what I was looking for to make my own adapter so can tow my Tacoma with my Peterbilt from job to job.


This was a direct replacement for a light converter that went bad on my truck. Good product one year later and still working as described!


I don't know. It just arrived. Wait for a month before sending review emails. I will be happy to respond.

It works perfectly!
Lane - 09/22/2021


Works great


The tail light converter is a must have if you plan to add brake and turn signal lights to your RV or Trailer. It allows a single light to convert the signal from a brake light to a turn signal and vis versa.
When you can’t seems to find a common or unique RV, trailer or vehicle part, you can bet etrailer will probably have it.


great product, that was not available locally, i got my wiring job done on time and done right. thank you e-trailer


Very good experience, thanks!!


Good, efficient service every time I’ve dealt with these folks.



Easy to install and still doing the job. No problems.
Elaine S - 11/13/2021


It works

Still working after one year.
Bob - 08/09/2021



Works great


It works exactly like it's supposed to!




Just what I needed



Ask the Experts about this Hopkins Trailer Wiring

  • Are Trailer Taillight Converters Waterproof
    Taillight converters such as the Hopkins # HM48847 would be installed in a an area where the are at least semi-protected from water, so the occasional splash won't harm them but they aren't meant to be fully exposed to a downpour or submerged. Installing the converter so that the box is in a protected or semi-protected area like under the seat or within a saddlebag is recommended for a installation like yours. If you click the provided link, you can see a product description video featuring...
    view full answer...
  • Troubleshooting Trailer Brake Lights Not Working When Connected To 2000 Chevrolet Silverado
    On your 2000 Chevrolet Silverado the left and right brake signal wire is separate from your turn signal wires. To connect this style of vehicle wiring to a trailer wiring connector you will need to use a 3-wire to 2-wire connector like the Hopkins Tail Light Converter - LED Compatible # HM48847. The brake wire will get connected to the red wire, the green wire will get connected to the passenger side turn signal, and the yellow wire will get connected to the driver side turn signal wire....
    view full answer...
  • Availability of Tail Light Converter for LED Light Installation on 5th Wheel
    It sounds like you need a converter so the 3 wire system on your vehicle works with the 2 wire system on your new LED tail lights. If that is the case, you can use the Hopkins Tail Light Converter - LED Compatible # HM48847. This installs on your vehicle wiring to combine your vehicle's independent brake light and turn signal functions.
    view full answer...
  • How to Convert a 3-Wire Vehicle's Wiring for Use with a 2-Wire LED Light
    If you have a 3-wire system on your vehicle (separate stop and turn) and your LED light is 2-wire (combined stop and turn), then you need a 3-to-2 converter. I recommend the Hopkins Tail Light Converter, part # HM48847. It's LED compatible and will combine the functions on your vehicle so they can be wired to your 2-wire light. I've linked to a video review of this converter for you to look at.
    view full answer...
  • Troubleshooting Hopkins 3-2 wire Converter HM48847 Only Having 9.7v Out Of Converter
    I reached out to my contact at Hopkins and the Hopkins Tail Light Converter - LED Compatible # HM48847 you have should have a full 12 volts exiting the converter. She recommended checking that the ground wire is connected to clean, corrosion free metal, but since you have already checked this then this is likely not the cause. Are the tail lights on your 1999 Toyota Tacoma the factory tail lights? or have they been changed with aftermarket ones? If not it really sounds like the converter...
    view full answer...
  • What Harness do I Need to Combine my Trailer Lights with My Turn Signal/Brake Lights?
    From the sounds of the issue, your trailer is wired for separate turn/brake lights. What you need is the Hopkins Tail Light Converter - LED Compatible # HM48847 to combine the trailer lights.
    view full answer...
  • Trailer Wiring Harness for 2019 Dodge Grand Caravan
    For trailer wiring for your 2019 Dodge Grand Caravan the only solution we can point you towards is a kit like the Tekonsha part # 118534 which does draw power from the battery directly for powering the trailer taillights. This is good because it prevents any trailer wiring shorts from damaging the wiring of your vehicle. I do understand that running the power wire is an extra step most don't want to do but it is necessary. I attached an install video for this on a similar 2019 Grand Caravan...
    view full answer...
  • 4-Way Extension to Get 4-Way Up to Front of Homemade Trailer
    That looks like a standard type of connector that vehicle manufacturers will use for various connections. I couldn't give you a part number for it though. Easiest option would probably be to cut that off and then use the 4-way extension part # HM47114 which is 4 feet long to get you a standard 4-way ran to front of vehicle.
    view full answer...
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  • 2-to-3 Wire Tail Light Converter for New LED Trailer Lights
    The Hopkins Tail Light Converter # HM48847 combines the signals from your truck to pass them to your towed trailer; however this won't work in reverse if you were to install this on your trailer. Since you're looking to add functionality of new lights on your trailer, which is wired as a 2 wire system, you'll want to use the Curt 2-to-3 Wire Tail Light Converter # C56196. This converter will convert the 2 wire signal from your trailer's 7 way connector into a 3 wire setup that will allow...
    view full answer...
  • What Type of Wiring is Needed to Convert From 7-Way on Semi to RV 7-Way
    Since the 7-way of your 2005 International 4300 has the brake lights and the turn signals on separate circuits and standard 7-way RV trailer wiring has those two circuits combined what you'd need is the part # HM48847 to make the circuit conversion needed to then wire up the new 7-way like with # HM48480 and you'd be set.
    view full answer...
  • How To Wire a Standard 4 and 7-Way Trailer Connector On a Semi Tractor
    I do have an option for you but semi tractors use separate stop and turn signal circuits and they will need to be combined to tow a recreational trailer. Therefore, you will first need a converter like the Hopkins Tail Light Converter part # HM48847. Then you can wire up a trailer connector like the 7-Pole and 4-Pole Trailer Connector Sockets part # HM40975-11998 which comes with both a 4 and 7-way as well as a mounting bracket.
    view full answer...
  • How To Install LED Trailer Tail Lights On a Side by Side
    The Miro-Flex LED Trailer Tail Light part # STL22RB as an example is designed for use on trailers therefore the stop and turn signals are combined which is the case for almost all of our trailer lights. Therefore, in order to use this tail light on a vehicle/trailer or in your case an ATV, you must have combined wiring which simply means the stop and turn signals are on the same circuit. If your wiring is separate then the only option to use a trailer tail light is with a converter, the...
    view full answer...
  • Recommended 3-Wire to 2-Wire Adapter For 1995 Chevrolet S-10
    We have the exact adapter you are looking for. To convert the separate brake and turn signal wires to a single wire for your 7-way connector you will need the Hopkins Tail Light Converter # HM48847 which will splice into the wiring harness on your 1995 Chevrolet S-10, and will give you combined brake and turn signal functions for you are looking for. Since we list your 1995 Chevrolet S-10 as already having a combined wiring system, I recommend double checking that you do have a separate...
    view full answer...
  • Converter to Separate Brake and Turn Signals on Trailer
    It sounds like you are looking to separate out your combined brake and turn signals on your trailer, and there is a part which will allow you to do that, though it isn't an adapter. What you will need is to wire in a 2-to-3 converter, and there are two of these which will do the job for you: - Curt 2-To-3-Wire Tail Light Converter # C56196 - Vehicle to Vehicle Tail Light Converter # 118158 I have added links below to video reviews and instructions for you to check out as well.
    view full answer...
  • Harness Needed To Install Trailer Tail Lights On Flat-Bed GMC/Chevy Truck
    If you are trying to install trailer tail lights on a pickup then you'll need a converter box since the pickup uses separate signals and the trailer lights are combined. I recommend the Hopkins Tail Light Converter part # HM48847. I can't tell you exactly how to wire the lights as I don't know which exact ones you have nor do we have any wiring diagrams for the vehicle so you will simply need to match the wires up by function (not color) which is done by checking with a circuit tester.
    view full answer...
  • Will the 7-Way Round Pin to 4-Flat Adapter Work On a Semi
    I do have an option for you but the 7-Way Round Pin to 4-Flat Adapter part # 118709 won't work on semi's as there is no converter integrated into the adapter. The lights on a semi are separate and the lights on a trailer are combined so a converter is required. Therefore, you will have to make your own adapter using the Hopkins Tail Light Converter part # HM48847, 7-Round Connector part # PK11700, and Hopkins Wiring Harness with 4-Pole Flat Trailer Connector part # HM48035.
    view full answer...
  • 3-Wire To 2-Wire Tail Light Converter To Install Trailer Lights In Place Of Vehicle Lights
    You will need the Hopkins Tail Light Converter # HM48847 to connect a set of lights like the GloLight LED Trailer Tail Light # STL111RCB on your 2001 Jeep Cherokee. This converter will take the tail light 3 wire inputs from the vehicle and combine them so that you can the 2 wire style lights. It is also confirmed to work correctly with LED lights.
    view full answer...
  • Connecting a US Trailer to a European Truck 7-Way
    If the tail lights are combined as well as the turn/stop functions then we have the Trailer Connector Adapter # 118710 you can use by cutting off the 4-Way and connecting those wires to a 7-Way like part # HM48480 so that you can plug in a 7-Way trailer connector. If the 7-Way European connector on the tow vehicle is wired like a true European connector (with all of those functions separated out) then you should be able to install the Hopkins Converter # HM48847 to combine the stop and...
    view full answer...
  • Converting 7-way European Connector On 2020 Volkswagen Amarok To 7-way US Connector
    I would be happy to help! To determine the functions of the wiring on your 2020 Volkswagen Amarok you will need a circuit tester like the # PTW2993 as the color of the wires is different for every manufacturer. A typical 7-way European connector is essentially a 4-way US connector, but the extra wires are that the European connectors separate the brake lights from the turn signals, where they are combined on the US connector. Your 7-wires will have the following functions: tail lights,...
    view full answer...
  • Parts Needed To Use Combined Signal/Brake Lights On Vehicle With Separate Turn/Brake Lights
    To use the Jeep-Style LED Combination Trailer Tail Light # STL60RLBP and # STL60RB to work on your 2006 Chevrolet flatbed you will need to use a Hopkins Tail Light Converter # HM48847. This converter is needed to combine the turn signals and brake lights to work on the same circuit like the Jeep needs. It is also confirmed to work with the LED lights on tail lights.
    view full answer...
  • Troubleshooting 7-pole Round to 4-way Flat Adapter Not Powering Brake Lights
    I would be happy to help! The 7-way round to 4-way flat adapter like the # 118709 is designed for 7-way round connectors that have combined brake and turn signal wires. Based on the issue you are having your connector more than likely does not have combined brake and turn signals, so you will need to make your own adapter. You will need to use the 7-way round connector # PK11702, wire # DW04906-1, 3-wire to 2-wire converter # HM48847, and a 4-way flat connector # HM48190. To wire this...
    view full answer...
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  • How To Tow Trailer W/ 7-way Blade Connector With 2013 Freightliner 122SD W/ 7-pin Round Connector
    I would be happy to help you make a wiring adapter to allow you to connect your 2013 Freightliner 122SD with a 7 pin round connector to your 2020 EZ4 triple axle trailer. First you will need a female 7-pin round # PK11720 and female 7-way blade # PK12-707E. Since the 7-pin round has separate brake and turn signals but a 7-way blade has combined you will need the the 3-wire to 2-wire converter # HM48847 like you mentioned. This will get connected to 7-way connector as follows: Red wire...
    view full answer...
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Edited by:
Lindsey S
Employee Alexander C
Written by:
Alexander C
Employee Michael B
Installed by:
Michael B

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