--- product_id: 27866685 title: "H4 9003 HB2 LED Load Resistor Harness 50W 8 Ohm Anti Flicker, 2 Pack" brand: "o-nex" price: "R$260" currency: BRL in_stock: true reviews_count: 13 url: https://www.desertcart.com.br/products/27866685-h4-9003-hb2-led-load-resistor-harness-50w-8-ohm store_origin: BR region: Brazil --- # 50W power load resistor 8 ohm dual resistor design Plug-n-play relay harness H4 9003 HB2 LED Load Resistor Harness 50W 8 Ohm Anti Flicker, 2 Pack **Brand:** o-nex **Price:** R$260 **Availability:** ✅ In Stock ## Summary > 🚦 Drive Bright, Drive Right – Never Miss a Beat on the Road! ## Quick Answers - **What is this?** H4 9003 HB2 LED Load Resistor Harness 50W 8 Ohm Anti Flicker, 2 Pack by o-nex - **How much does it cost?** R$260 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/27866685-h4-9003-hb2-led-load-resistor-harness-50w-8-ohm) ## Best For - o-nex enthusiasts ## Why This Product - Trusted o-nex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Complete Dual Kit:** Includes two relay harnesses with dual resistors for both high and low beam setups - • **Error Code Buster:** Bypasses vehicle computer warnings with advanced anti-flicker error decoder tech - • **Heavy-Duty Reliability:** Built with durable aluminum and brass for long-lasting performance under heat stress - • **Flicker-Free Brilliance:** Eliminates annoying LED flicker and random shut-offs for seamless night drives - • **Universal 12V Compatibility:** Works effortlessly with standard 12V automotive electrical systems across most vehicles ## Overview The O-NEX H4 9003 LED Load Resistor Kit is a professional-grade automotive accessory designed to eliminate LED headlight flickering and error codes. Featuring a robust 50W 8 ohm dual resistor setup and plug-n-play relay harnesses, it ensures seamless integration with 12V vehicle systems. Crafted from durable aluminum and brass, this kit provides reliable heat dissipation and long-term performance, making it an essential upgrade for LED headlight and fog light users seeking flawless lighting and error-free operation. ## Description SoCal LED Lighting Inc established on 2013 as wholesaler for LED lights in City of Industry Los Angeles. We carry a full range of led lighting from residential to commercial lighting fixtures; dedicated to delivering the high-quality LED lighting and fixtures at a competitive price, servicing the local community for years and earned trust for countless customers. This resistor will get very hot when turn on, please mount on metal area! Golden aluminum housing for faster heat dissipation. in case you need to know the size of the resistor, please refer to the above diagram. ## Features - DUAL-BEAM CANBUS DECODER: Built with dual 50W 8-Ohm load resistors per harness to manage both high and low beam functions. Eliminates headlight flickering, dashboard error codes, and random shut-offs when upgrading H4/9003 bulbs. - H4 9003 HB2 SOCKET COMPATIBILITY: Pre-wired dual-beam plug-and-play connectors fit H4, 9003, and HB2 headlight sockets. Works seamlessly with dual-beam LED bulbs and Bi-Xenon HID conversion setups. - HEAVY-DUTY RELAY DESIGN: Built with high-grade wiring and heat-resistant socket connectors to ensure stable 12V DC power delivery, protecting stock vehicle wiring while providing consistent headlight output. - PLUG & PLAY INSTALLATION: Direct inline wiring adapter requires no cutting or wire splicing. Simply plug between your vehicle's factory headlight socket and your new LED bulb or HID ballast for quick setup. - HEAT SAFETY WARNING: Load resistors generate high operational heat during use. Resistor units MUST be mounted to unpainted metal or chassis surfaces. DO NOT mount on plastic or near meltable wires. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B01CTIDE76 | | Best Sellers Rank | #13,067 in Automotive (See Top 100 in Automotive) #24 in Automotive Replacement Electrical Wiring Harnesses | | Brand Name | O-NEX | | Cable Type | automotive cable | | Connector Type | Male and Female | | Customer Reviews | 4.0 4.0 out of 5 stars (3,111) 4.0 out of 5 stars | | Included Components | Resistor | | Item Dimensions | 7 x 4 x 0.5 inches | | Item Highlight | Plug-and-play dual beam headlight decoder • Fixes high low CANBus warning, flickering & shut-offs • Pair adapter set | | Item Weight | 7 ounces | | Manufacturer | O-NEX | | Material Type | Aluminum, Brass, Plastic | | Model | H4 | | Number Of Items | 2 | | Part Interchange Info | H4 HB2 9003 | | Part Number | HID-RLRH4 | | Recommended Uses For Product | Headlight or Fog light | | Unit Count | 2 Count | | Upc | 732341334338 | | Warranty Description | Manufacturer warranty for 1 year from date of purchase. | ## Product Details - **Brand:** O-NEX - **Connector Type:** Male and Female - **Item Weight:** 7 Ounces - **Item dimensions L x W x H:** 7 x 4 x 0.5 inches - **Material:** Aluminum, Brass, Plastic ## Images ![H4 9003 HB2 LED Load Resistor Harness 50W 8 Ohm Anti Flicker, 2 Pack - Image 1](https://m.media-amazon.com/images/I/71ODYA7TauL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fixed my LED Flicker *by on Reviewed in the United States August 5, 2022* I bought this product after using a Bluetooth OBD adapter and OBD JScan did not fix my issue. Don’t get me wrong both products are still of good use to me, but with my luck it was not enough of a fix.I hit a deer awhile back and had to partially rebuild the front end of my 08 Grand Cherokee. When replacing the headlights, I opted for the SRT8 style headlights so I’d have projector low beams instead of reflector low beams. Reflectors aren’t bad, but projectors make much better use of the light sources output. The downside is halogens suck in most projectors. Companies can try as hard as they want, those relatively small halogen bulbs can only push out so much energy before their longevity falls off. LEDs work depending on how they’re designed in terms of diode placement. HIDs are ideal, but I didn’t like the idea of doing a harness conversion, at least for the time being. So I opted for the LED route as they made them in the 9006/9005 flavor.I came across what seemed to be a nice combo set by Fahren for $35-40ish. I took my bets on it and I ended up being gladly surprised. Nice modern 6000k color temp, bright as s*** and the ring on them were already turned for the optimal beam pattern, even in the projectors. But I did have a problem and I kinda went into it knowing that the Jeep may reject the LEDs in some way because of it being in the era where vehicles started relying more and more on CANBUS to communicate all it’s different functions in all different directions.The problem was that when the bulbs were powered on, the fans were super loud, kinda like the old XB360/PS3 fans that sounded like a jet about to take off. And when they would get powered off, they would stay illuminated very dimly and flicker until the Jeeps accessory circuit had shut off for so many seconds and then they would fully power off. Mind you, the ‘DRL on ECU’ was disabled so the DRL had no effect on the problem. With the low beams, it wasn’t that bad but I ended up keeping the halogens in the high beams because if I used my brights, they would do that flickering crap and I know darn well someone or a cop is gonna be upset at that when I’m driving and kill my brights but stay and flicker.That brings me to using JScan and buying the adapter. By enabling the High Intensity Discharge Lamp option and Quad Headlamps, that would solve the problem; however, the HID option was already active from factory (despite not having the D1S/9005 SRT8 headlight setup from factory) and upon enabling the Quad Headlamps, only the right low beam would even work and still flicker when powered off. Deactivating both options made both work again and the fans were self regulating their speed instead of running only wide open. So I left the settings as is and then invested in a set of these for the low beams. Plugged them in, turned them on and everything was normal, the light output didn’t drop any and upon powering them off, within two- or three-tenths of a second, they shut off completely. Not instantaneous, but still faster than a halogen can go from full intensity to fade to off. And it stopped them from flickering at all. So last night I ordered a second set for the high beams. Once I receive them Monday, I will install the led high beams again and then I should be rocking and rolling.The only downside is that they do get really hot while in operation. That’s how they’re designed to work, basically acting as a dummy load to closer match the LEDs amperage draw to that of a halogen. Remember, LEDs only emit like 1/3 the amount of heat that a halogen bulb of similar wattage emits. Halogens rely on heat to produce light, requiring more energy; LEDs are diodes that generally only get hot if they’re being driven to their limit, mainly why most led headlights have a fan to compensate for the power they’re cranking out of the chips. In my case that has no effect on me, but for those that have vehicles that tell you what bulb is out or gives a general bulb outage alert, that should fix that problem when converting to led from halogen. But it seems to me like it has some sort of capacitor inside it that drains any residual charge in the circuit, which I believe to be the problem I was having. The bulbs had a built-in error decoder but it must not of had a capacitor to keep that from happening.Overall, it seems to be a well worthy purchase. It’s an affordable price and so far has held up fine and hasn’t melted anything and caused a fire. I bumped my hand against it while I was adjusting my right headlight after I hit another deer last week (I was doing 35 in a 35 this time, instead of 55 in a 55 like last time so damage wasn’t near as bad) and I didn’t even feel the heat for a few seconds. Definitely hot but not scalding. I think the LEDs were rated at 65w supposedly and these have 50w printed on them so maybe that’s why mine ain’t getting so hot, really couldn’t tell ya for sure. Or maybe they just dissipate the heat fast in the moisture dense air us Western Kentuckians have been dealing with a lot lately.But yeah, either way, if everything is telling you this is what you need for your led conversion, most likely this is the option for you. Just make sure you select for the right harness/bulb type. ### ⭐⭐⭐⭐⭐ Works on 2006 Toyota Tundra *by on Reviewed in the United States July 28, 2026* I updated the headlights on my 2006 Toyota Tundra to LED lights and when I did the high beam indicator on the dash would not turn on when I switched on the high beams. Additionally, when I would switch on the fog lights the high beam lights would turn on and the fog lights would not turn on. I did a lot of research and long story short you need to use a canbus decoder or resistor kit. I initially purchased a canbus decoder and it wouldn't even turn my headlights on at all. I bought this resistor kit and installed it and now everything works perfectly! I get the high beam indicator on the dash when high beams are on and my fog lights turn on!****TWO THINGS TO NOTE****The resistors get extremely hot and have to be mounted on a metal surface away from plastic and wiring.The other thing, I read on 1st gen Tundras you only have to add the resistor kit on the passenger headlight. So I tried it and it worked on my truck. So, if you purchase this, install on the passenger headlight first and try it before installing on the driver side headlight. ### ⭐ Disappointed – Did Not Fix Flickering and Poor Quality Control *by on Reviewed in the United States September 25, 2025* I bought this LED load resistor kit hoping it would solve my flickering issue. Unfortunately, it didn’t. When the item arrived, it was literally just tossed into a bag—no mounting hardware, no instructions, nothing. The mounting holes are so tiny they don’t even fit a standard cable tie, making installation frustrating.Despite that, I managed to mount the resistors and tested them out. The flickering persisted. Since Amazon offered a free replacement and some reviews mentioned it worked for them, I gave it another shot. I only installed the replacement on one side to compare—but again, no difference between the side with the resistor and the side without.Some positives: it’s easy to install (if you manage to mount it somehow), and the build feels decent. However, functionality is all over the place. High beams worked great, but low beams had issues. Flickering and hyper flashing were not resolved in my case. Also, the resistor gets extremely hot—hot enough that people have reported melting plastic parts. That’s a serious concern.Fitment is another problem: the sockets don’t align well, making installation even more difficult. As for error messages, some people said it worked for them, but I still saw errors on my dash.Overall, this product was a letdown. It may work for some, but it didn’t fix anything for me. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.br/products/27866685-h4-9003-hb2-led-load-resistor-harness-50w-8-ohm](https://www.desertcart.com.br/products/27866685-h4-9003-hb2-led-load-resistor-harness-50w-8-ohm) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-10-10*