fall hauling headquarters

Price: $29.98

In Stock

Putco LED Light Bulb Load-Resistors - Aluminum - Qty 2

Item # P230004A-2

lowest price pledge


Our Price: $29.98

Accessories and Parts

Orders above $99 qualify for Free Shipping

Shipping Weight: 0.3 lbs

Estimated Delivery: Monday, October 29

Enter a zip code for a more accurate estimate.


In Stock
P230004A-2 - Load-Resistor Kit Putco Accessories and Parts
zoom in icon
zoom out icon
pop out icon replay 360 icon
horizontal rotate icon

Product Images

P230004A-2 - Load-Resistor Kit Putco Accessories and Parts

Customer Photos

  • Lights
  • Load-Resistor Kit
  • Putco
  • Aluminum
Guard against LED-related turn signal problems with these load-resistors. Simple, effective system builds resistance that corrects flash timing, thereby preventing the "hyperflash" phenomenon that occurs with LED indicators. Call 800-298-8924 to order Putco accessories and parts part number P230004A-2 or order online at etrailer.com. Free expert support on all Putco products. Guaranteed Lowest Price and Fastest Shipping for Putco LED Light Bulb Load-Resistors - Aluminum - Qty 2. Accessories and Parts reviews from real customers.

  • All Info
  • Reviews (12)
  • Q & A (125)
  • Photos
  • Why etrailer?

Putco Accessories and Parts - P230004A-2

Guard against LED-related turn signal problems with these load-resistors. Simple, effective system builds resistance that corrects flash timing, thereby preventing the "hyperflash" phenomenon that occurs with LED indicators.


  • Fixes hyperflashing or burned-out bulb indicators on turn signals with LED lights
  • Fits tight applications with compact design
  • Installs quickly and easily
  • Works with most import and domestic vehicles
  • Constructed of durable aluminum
  • Includes 2 load resistors - 1 for each turn signal


  • 6 Ohms
  • 50 Watts
  • Lifetime warranty

Because LED bulbs have little resistance on their own, they can create a "hyperflash" situation when used in turn signals. This fast flashing is similar to what your factory signal light does when the bulb is about to burn out. To prevent this phenomenon, install a load-resistor kit along with your new LEDs. Each load resistor will build additional resistance in the line to correct the flash timing of the bulb, resulting in a properly functioning indicator.

230004A Putco LED Light Bulb Load Resistor Kit - Quantity 2 - Aluminum

P230004A-2 Installation InstructionsInstallation Details P230004A-2 Installation instructions

Customer Reviews

Putco LED Light Bulb Load-Resistors - Aluminum - Qty 2 - P230004A-2

Average Customer Rating:  4.7 out of 5 stars   (12 Customer Reviews)

Guard against LED-related turn signal problems with these load-resistors. Simple, effective system builds resistance that corrects flash timing, thereby preventing the "hyperflash" phenomenon that occurs with LED indicators.

- P230004A-2


Sorry it took so long to get back to you, but I finally got to installing one of them. I got these because I had one go bad on my wifes Jeep. We put LED turn signals on and obviousley had to put resistors on. We bought the Recon lights direct from the manufacturer and they told us that they had resistors built into them. They were wrong. I bought the resistors from them and they are JUNK!!! One has already come unwired and quit working. I bought these from you and they already look better built. I installed it and it worked great! I will continue to buy Putco products and will no longer buy Recon products. I have other Recon products on other vehicles and have trouble with them also. Sorry for the rant. Thanks for the resistors and I will probably be buying some more from you pretty soon. Here is a pic of the resistor I put in this afternoon. 105401

- P230004A-2


We are towing a new flat bed utility trailer that has LED lights, with a 2013 Ford Escape. The Escape would throw a bulb error every time we put on the turn signals. Additionally, the lights on the trailer were pulsing continuously. We installed these on the trailer and now everything works perfectly! No more bulb error messages from the Escape and the lights illuminate as they should. These resistors were super easy to install, literally took us only a few minutes. 447285

- P230004A-2


The folks provided a quality product, metal heat sink casing around resister to disperse heat - much better than the cheap plastic units sold at local retailers for twice as much. Very easy install, only thing I changed was connectors so I could use heat shrink to protect connections from water. 264357


Still perform as well as when installed

Keith B - 06/23/2017


- P230004A-2


Easy to install, but these get EXTREMELY HOT....if someone has suggestion on how to keep them cooler it would be appreciated. Otherwise E-Trailer was a great option to purchase these from. 124876

- P230004A-2


Product is good will serve my issue. Received package well protected . Delivery was a bit tardy compared to [sites] services. 358058

- P230004A-2


Installed with new LED tail lamps. Not sure I needed them, but I dont have any hyperflash, so all is good. Very nice quality! 463338

- P230004A-2


Arrived quickly and fixed my lighting issue. Thanks for the great service 126970

- P230004A-2


Quick and easy install to fix the hyper blink caused by LED lights. 213845

- P230004A-2


Did not use the product. Returned and got a different product. 160580

- P230004A-2


Everything they said it was 232254

- P230004A-2


Worked great thanks 397642

- P230004A-2


Well made. 449960


Ask the Experts about this Putco Accessories and Parts
Do you have a question about this Accessories and Part?

  • Troubleshooting LED Tail Light Bulbs Flickering when Vehicle Lights are Turned Off
  • The flicker you are referring to with LED bulbs is known as hyper flashing. This occurs because the LED bulbs require so much less power than incandescent bulbs. So when your lights are on, the power to the bulbs is reduced due to the draw on the headlights and running lights, but when they are turned off the power is too great for proper function without adding load resistors. I recommend adding the Putco LED Light Bulb Load-Resistors - Aluminum - Qty 2 # P230004A-2 to your wiring for...
    view full answer...

  • Are Load Resistors Needed for LED Backup and Brake/Tail Lights
  • When changing from incandescent or halogen type bulbs to LEDs, load resistors are required. For the blinker circuits you can use load-resistors like the Putco LED Light Bulb Load-Resistors # P230004A-2 to prevent hyperflashing of the blinkers. This kit includes two resistors and connectors for installing a pair of bulbs as turn signal lamps. Check out the installation instructions I have attached for part # P230004A-2. I have also included a link to our exterior LED automobile lights...
    view full answer...

  • Load Resistors Needed When Installing Aftermarket LED Bulbs In GMC Sierra To Prevent Hyperflashing
  • Per Putco, you would need 1 load resistor inline with the wiring harness feeding LED bulb for a turn signal. I believe your Sierra has two bulbs per side, one for the running lamp, one for the brake/turn signal. You only need to install Load Resistors on the circuits feeding the turn signals. I recommend the Putco # P230004A-2 resistors. Their finned aluminum body will be very effective at shedding excess heat. I have provided a diagram showing how the resistors should be wired.
    view full answer...

  • Is Load Resistor Required for Converting 3rd Brake Light to LED Bulb
  • Load resistors can be required for LED lights when the vehicle wiring is unable to recognize the light's presence due to its very low power draw. Standard incandescent bulb lights draw more power and so they are more easily "seen" by the wiring harness. Load resistors like # P230004A-2 drain away some power and so they mimic the characteristics of incandescent lights. You can try a load resistor to see if it corrects the blown fuse for your IOD display but usually it is only blinking...
    view full answer...

  • Trailer Turn Signals Hyper Flashing After Replacing Incandescent Tail Lights with LEDs
  • When a tow vehicle is equipped with a bulb-out sensor, the addition of LED trailer lights can cause hyper flashing like you describe because LEDs draw much less power than incandescent bulbs do. This fools the bulb out sensor into thinking that a bulb is burned out. If the circuit was drawing too much power, a heavier duty flasher would be needed, but in this case you have the opposite. You can install load resistors like part # P230004A-2 on the right turn/brake and left turn/brake...
    view full answer...

  • How to Fix Check Trailer Wiring Message on 2015 Chevrolet Silverado and Trailer with LED Lights
  • The Curt 7-Way Trailer Adapter # C57003 is designed to be used on Volkswagens, Audis, and Porsches but we have seen some success on other vehicle makes. I can't say for sure but it might solve your issue. The adapter uses load resistors which creates more power draw. Another possible solution is to install load resistors # P230004A-2.
    view full answer...

  • How to Correct Flashing LED Trailer Lights Using Load Resistors
  • High-efficiency LED type trailer lighting pulls much lower current than standard incandescent lights and sometimes this can cause odd behavior from the wiring harness when it cannot recognize the connected trailer. There's a simple solution to this issue: installation of a load resistor at each affected LED light. Load resistors mimic the electrical signature of incandescent lights to let the trailer wiring work as intended. If your trailer lights use a PL-3 type connector you can...
    view full answer...

  • Resistor Used for LED Fog Lights Does Not Last Long
  • I think I have a better solution for your LED lights. Instead of reducing the current (and it would be stepping down the amperage, not the voltage) you could put more load on the system so that the LED lights will work. You just need some load resistors such as # P230004A-2.
    view full answer...

  • LED Lights Flash on Trailer Towed by a 2008 Land Rover LR3 Using Adapter # C57003
  • The 7-Way to 7-Way adapter, # C57003, is designed to work on German vehicles like the VWs, Audis, and so on to deal with a bulb-out sensor issue present on those vehicles. It may not work the same for other applications like on your Land Rover. If the LED lights on the trailer are not providing enough power draw on the system you can try installing some load resistors on each of the lighting circuits (right turn/brake lights, left turn/brake lights) behind the trailer connector. You...
    view full answer...

  • Trailer LED Tail Lights Light Up Dim When Connected to Vehicle with Curt Trailer Wiring Harness
  • Curt trailer wiring harnesses like # C56378 sometimes have the exact issue that you are describing. The issue is that there is some bleed over power from the powered converter that can light up LED lights ever so slightly. This is usually not an issue because at night you would have the running lights on any way and during the day it should not be all that visible. The reason that it happens with LED lights and not incandescent lights is that the LED lights draw much less power to light...
    view full answer...

  • Troubleshooting Hyper Flashing Trailer Lights on Mercedes-Benz Sprinter Van
  • The hyper flashing due to LED lights on your trailer is often solved with the 7-way adapter you mentioned the Trailer Connector Adapter w/ Lamp-Out Sensor Bypass - 7-Way RV to 7-Way RV - Vehicle End # 20142. The issue is often that LED's pull so much less power that the computer systems don't know how to accommodate the small electrical load. What I recommend doing next is checking each ground connection to ensure you have a bare metal to metal connection. Then if you still have...
    view full answer...

  • Should Load Resistors be Grounded to the Vehicle Frame or an Existing Ground Wire
  • The ideal location to ground anything would be to the metal frame of the vehicle in the nearest corrosion free bare metal surface. However, if there is a ground wire near by you could try it out and see if it offers a sufficient ground. If you still get hyper flashing then a better ground location could be needed. I have included a link to the installation details for the load resistor # P230004A for you. These resistors are also available in a pair, # P230004A-2.
    view full answer...

  • Correcting Hyperflashing After Installation LED Taillights on 2004 Dodge Ram 3500
  • In order to stop your turn signals and brake lights from hyperflashing with your LED taillights, you will want to install LED Light Bulb Load-Resistors, Aluminum # P230004A-2 on the turn light and brake signal wires. Included in the # P230004A-2 are 2 load resistors, so to take care of each side of your 2004 Dodge Ram 3500 you will want quantity 2 of # P23004A-2. Hyperflashing is a common issue when changing incandescent bulbs to LEDs. One of my fellow Experts put LEDs on his Dodge 2500...
    view full answer...

  • Load Resistors to Allow Wiring Harness to Operate with LED Trailer Lights
  • LED type trailer lights use very little power, about one-tenth the amount required by standard incandescent light bulbs. This can cause some wiring systems to not "see" the trailer lights because their current draw is so low. In some cases a wiring harness may not function correctly if used with LED lights unless a load resistor is installed at each LED light unit. We offer 2-piece ceramic load resistor kit # P230004C-2 and 2-piece aluminum resistor kit # P230004A-2. Either will allow...
    view full answer...

  • My 2017 Ford F-150 Reads "Trailer Module Fault” & “Turn Signal Faults” & Trailer Lights Don’t Work
  • According to what you told me, since it's not the LED lights, you may want to re-check the ground on the vehicle side. Since you are not getting the proper signals to the trailer lights then you will want to start off by making sure your vehicle end connectors where the factory harness plugs in do not have any corrosion on them. make sure sure they are clean and the pins are not bent. Yes, this applies on new trucks. If they look good then you will want to check the wiring on your vehicle...
    view full answer...

  • Can Load Resistors be Used on a Mercedes with a CANBUS Electrical System
  • Load resistors such as # P230004C-2 just create more current draw on a circuit. The constant draw should be compatible with the CANBUS system on your Mercedes but it is possible that the vehicle computer may consider it a short and throw a warning. They are used primarily to fix hyper flashing on LED lights used in the turn signals. Both ceramic and aluminum load resistors are going to generate heat. Aluminum dissipates the heat a little better. The aluminum set is # P230004A-2. If...
    view full answer...

  • 2011 Range Rover with Trailer Assist Does Not Recognize Trailer with LED Tail Lights
  • First an adapter with load resistors that goes from a 4-Way flat to a 4-Way flat is not available. You would need to use the 7-Way to 4-Way adapter, # TR20141 for that. This particular adapter was designed to offer enough resistance when towing a trailer with LED lights so you no longer get those errors. The other option is to install load resistors, like # P230004A-2 for a 2-pack, in line on the trailer wiring for each circuit.
    view full answer...

  • Fix Potential Hyper Flashing On 2017 Land Rover Discovery
  • I understand your concern that some newer vehicles have to recognize that a trailer is plugged into the connector in order for the towing functions to activate. When a trailer has LED lights the power draw is very low, but that's one advantage of LED lights. However since the power draw is so low the vehicle doesn't recognize the trailer and therefore doesn't turn on the towing features. Another cause could be that the 2017 Land Rover Discovery recognizes the lights being on the circuit...
    view full answer...

  • Options for Replacing Incandescent Bulbs with LED Equivalents to Reduce Power Demand
  • Converting an RV to LED lighting is a great way to both make it more visible and to reduce the power demands on your tow vehicle wiring setup. I have an alternative suggestion that you may like since it might save you some money and installation time. We have LED equivalent bulb replacements like # AR50368 and many others that can replace the most common incandescent bulb types. These offer a simple way to upgrade to LEDs without having to replace the entire fixture and this route often...
    view full answer...

  • 2013 Ford Escape Shows Bulb Out when Trailer with LED Lights is Connected
  • The bulb out error or hyper flashing can occur any time LED lights are used in place of incandescent lights. Usually this issue is found on vehicles but has been know to occur on trailers as well. You will need to make the tow package wiring on the vehicle think there is more draw from the lights. To do this I recommend using load resistors on the affected circuits. If the trailer lights use the 3-prong plug like # ST70RB you can use # ALEDRST1B. Or you could install resistors such as...
    view full answer...

  • BMW X5 Bulb Out Warning Still Happens Using Special Adapter TR20141 for Trailers with LED Lights
  • If the adapter, # TR20141, is still causing the bulb out sensor when towing a trailer with LED lights then there is another option. You can install load resistors, # P230004A-2, on the trailer wiring. The load resistors will need to go on each circuit so you will need at least 3 for a 4-Way trailer connector for the basic lighting functions. These will provide more draw on the system and the vehicle will not think there is a bulb out. The other possibility is that there actually is...
    view full answer...

  • LED Trailer Lighting Kit and Load Resistors to Prevent Hyperflashing
  • We do offer complete LED-type trailer lighting kits such as Optronics # TLL9RK. This DOT-approved kit includes everything you need for a trailer under 80-inches in width. It's included 4-pole harness is 25-feet long. LEDs use so little power that they can sometimes confuse a wiring harness. The simple fix to this issue is to use load resistors. These add resistance to the system and fool the harness into thinking it is sensing the resistive load typical of a standard incandescent bulb. Load...
    view full answer...

  • Load Resistor Recommendation for a Vehicle with LED Lights and Hyperflashing
  • The hyperflashing you are experiencing is most likely related to the LED lights you have installed on your vehicle. LEDs are notorious for causing hyperflash when used on turn signal circuits of a vehicle. Typically installing load resistors on the circuit like the part # P230004A-2 will fix the problem. To see how they install check out the picture I attached.
    view full answer...

  • Trailer LED Lights Not Working when Connected to a 2012 Mercedes ML350
  • This is a common problem with Mercedes vehicles and trailers that have LED lights. Basically the LED lights do not draw enough power for the vehicle to recognize they are there and sometimes they sense it as a burned out bulb so you might see an error message displayed in the vehicle. One option is to use a special adapter, # TR20141 for a 7- to 4-Way or # C57003 for a 7- to 7-Way. These adapters have load resistors to simulate incandescent bulbs so the LED lights will work. If the...
    view full answer...

  • Troubleshooting Low Voltage to LED Tail Lights and Trailer Lights
  • It is normal to get LED light function with the ACC mode on your ignition. The LED lights draw far less amperage than incandescent bulbs, so with any power going to the wires they can be illuminated. This is normal for your 1997 Ford F-450. If you do not want them to function in that ACC mode on your ignition and want them to function like the incandescent bulbs, then you will need to install load resistors like the Putco LED Light Bulb Load-Resistors - Aluminum - Qty 2 # P230004A-2...
    view full answer...

  • Troubleshooting 2005 Dodge Ram 1500 with Flashing/Flickering Fog Lights
  • LED's sometimes will do a hyperflashing because they take less power than traditional incandescent bulbs. The way to fix this is to use load resistors like the Putco LED Light Bulb Load-Resistors - Aluminum - Qty 2 # P230004A-2. This is what I recommend to solve your flashing issue on your 2005 Ram 1500's fog lights.
    view full answer...

Do you have a question about this Accessories and Part?

  • Why etrailer.com?

    At etrailer.com we guarantee:

  • Highest quality accessories and parts for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate accessories and part information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Satisfaction Guarantee
    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Expert Research:
Jameson C
Expert Research:
Adam R
Video Edited:
Dustin K
Installed by:
Hayden R
Updated by:
Sarah W
Updated by:
Brian T

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

About Us
photos and videos

Original Photos & Videos

Produced to make sure you know what you are getting and you get exactly what you need.


Installations Completed

To make sure products work and fit the way they are supposed to.

etrailer call center

Phone Calls & Emails Answered

1,125,924 phone calls and 1,350,587 emails to help find the right solution.

etrailer training

Average Hours of Product Training

We get to know our products firsthand so experts can better help you.

etrailer service

Years of Quality Customer Service

Assisting our neighbors and customers, face to face at the counter.

etrailer experts

Pages of Expert Information

Created to make sure you have all the answers to your questions, from real experts.