20 Best Universal Relay Wiring [2024]

Are you looking for the best universal relay wiring? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling universal relay wiring.

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1 Innovited Universal relay wiring harness for all HID H1, H3, H4, H7, H8, H9, H10, H11, H13, 9004,... Innovited Universal relay wiring harness for all HID H1, H3, H4, H7, H8, H9, H10, H11, H13, 9004,...
2 Xentec Universal relay wiring harness for all HID single kit H1, H3, H4, H7, H8, H9, H10, H11, H13,... Xentec Universal relay wiring harness for all HID single kit H1, H3, H4, H7, H8, H9, H10, H11,...
3 HUIQIAODS H11 880 881 H8 Universal 40A Relay Wiring Harness Kit Fits LED Automotive Fog Light... HUIQIAODS H11 880 881 H8 Universal 40A Relay Wiring Harness Kit Fits LED Automotive Fog Light...
4 Relay Wiring Harness Conversion Kit Universal Single Beam Wire Harness for H1 H3 H4 H7 H8 H9 H10 H11... Relay Wiring Harness Conversion Kit Universal Single Beam Wire Harness for H1 H3 H4 H7 H8 H9 H10...
5 Wiring Harness 2 Lead, Nirider 12V 40A Rock Switch Relay Fuse Nylon Wiring Harness Kit for LED Light... Wiring Harness 2 Lead, Nirider 12V 40A Rock Switch Relay Fuse Nylon Wiring Harness Kit for LED...
6 [ALL STAR TRUCK PARTS] Universal HID Battery Wiring Relay Harness 12V 40 AMP 35W/55W - H1 H3 H7 H8... [ALL STAR TRUCK PARTS] Universal HID Battery Wiring Relay Harness 12V 40 AMP 35W/55W - H1 H3 H7...
7 Universal H4 9003 Relay Harness conversion kit Complete with Ceramic Sockets H6054 H5054 H6054LL... Universal H4 9003 Relay Harness conversion kit Complete with Ceramic Sockets H6054 H5054 H6054LL...
8 Nilight 50003R Automotive Set 5-Pin 30/40A 12V SPDT with Interlocking Relay Socket and Wiring... Nilight 50003R Automotive Set 5-Pin 30/40A 12V SPDT with Interlocking Relay Socket and Wiring...
9 12V Auto Waterproof Fuse Relay Box Block Kit [6 Bosch Style Relay Holder] [6 ATC/ATO Fuse Holder]... 12V Auto Waterproof Fuse Relay Box Block Kit [6 Bosch Style Relay Holder] [6 ATC/ATO Fuse Holder]...
10 Primelux Universal 12ft Relay Wiring Harness for LED Light Bars - 12V 40A Relay & 3-Pin On/Off... Primelux Universal 12ft Relay Wiring Harness for LED Light Bars - 12V 40A Relay & 3-Pin On/Off...
11 Nilight Wiring Harness Kit 14AWG Heavy Duty 12V On-Off Switch Power Relay Blade Fuse for Off Road... Nilight Wiring Harness Kit 14AWG Heavy Duty 12V On-Off Switch Power Relay Blade Fuse for Off Road...
12 LED Light Bar Wiring Harness Auto Power Plus Wiring Harness Kit for LED Lights 450W 12V 30A Fuse... LED Light Bar Wiring Harness Auto Power Plus Wiring Harness Kit for LED Lights 450W 12V 30A Fuse...
13 iJDMTOY (1) Universal Fit Relay Harness Wire Kit with LED Light ON/Off Switch Compatible with Fog... iJDMTOY (1) Universal Fit Relay Harness Wire Kit with LED Light ON/Off Switch Compatible with Fog...
14 DZG Universal LED Light Wiring Harness Kit 12V with Relay 30A Fuse On Off Switch for Motorcycle... DZG Universal LED Light Wiring Harness Kit 12V with Relay 30A Fuse On Off Switch for Motorcycle...
15 Mofun Universal 2 Lead LED Light Bar Wiring Harness Kit Rocker Switch Blue Relay On Off Fuse... Mofun Universal 2 Lead LED Light Bar Wiring Harness Kit Rocker Switch Blue Relay On Off Fuse...
16 Innovited HID relay wiring harness Universal for all single bulb size H1, H3, H4, H7, H8, H9, H10,... Innovited HID relay wiring harness Universal for all single bulb size H1, H3, H4, H7, H8, H9,...
17 #1 Fog Light 40 Amp Universal Wiring Harness on the Market! comes w/Relay ON/OFF Switch connectors... #1 Fog Light 40 Amp Universal Wiring Harness on the Market! comes w/Relay ON/OFF Switch...
18 Universal 12V Horn Wire Wiring Harness Relay Kit for Motorcycle Car Truck Grille Mount Blast Tone... Universal 12V Horn Wire Wiring Harness Relay Kit for Motorcycle Car Truck Grille Mount Blast Tone...
19 Lumitek Universal LED Light Bar Remote Wiring Harness Kit with 40A/12V ON/OFF Switch Relay for Off... Lumitek Universal LED Light Bar Remote Wiring Harness Kit with 40A/12V ON/OFF Switch Relay for...
20 Kairiyard LED Motorcycle Light Wiring Harness Kit 13ft 14AWG 2 Leads Universal Driving Light Bar... Kairiyard LED Motorcycle Light Wiring Harness Kit 13ft 14AWG 2 Leads Universal Driving Light Bar...
Bestseller No. 1
Innovited Universal relay wiring harness for all HID H1, H3, H4, H7, H8, H9, H10, H11, H13, 9004,...
  • 40A/12VDC 30Amp Fuse SPST relay configuration
  • Compatible with both 35W and 55W
  • One relay harness powers both driver and passenger sides
  • compatible with all HID single bulbs H1, H3, H4, H7, H8, H9, H10, H11, H13, 9004, 9005, 9006, 9007, 5202, 880, 884
  • Includes 1 x HID Universal Single Beam Relay Harness
Bestseller No. 2
Xentec Universal relay wiring harness for all HID single kit H1, H3, H4, H7, H8, H9, H10, H11, H13,...
  • Protects your HID system by power directly from your battery
  • Eliminate flickering due to low electrical current
  • One relay harness powers both driver and passenger sides
  • compatible with all HID single bulbs H1, H3, H4, H7, H8, H9, H10, H11, H13, 9004, 9005, 9006, 9007, 5202, 880, 884
  • Includes 1 x Xentec HID Universal Single Beam Relay Harness
Bestseller No. 3
HUIQIAODS H11 880 881 H8 Universal 40A Relay Wiring Harness Kit Fits LED Automotive Fog Light...
  • Designed to be Compatible with HID Bulbs, A Solution choice for Flickering Bulbs (Each Vehicle Varies)
  • Reliable Relay Harness that Draws Power Straight from Battery
  • Compatibility List: H11, H8, H9, 880, and 881 HID Conversion Kits
  • Increases visibility, and has long lasting non-fading lifetime
  • Used to reinforce fog lights without need for a adapter
SaleBestseller No. 4
Relay Wiring Harness Conversion Kit Universal Single Beam Wire Harness for H1 H3 H4 H7 H8 H9 H10 H11...
  • ●HIGH PERFORMANCE - Produce brighter light than halogen,increases more visibility,use less power,and has long lasting non-fading lifetime.
  • ●PROTECTION - Deliver steady voltage directly from car battery to protect your system.Wires are covered with heat shield and heat shrink to protect...
  • ●RESOLVE ISSUES - For vehicles with poor battery,alternator or heavy draw on power from stereo's.No more flickering or shut-off issues due to low...
  • ●UNIVERSAL FITMENT - For all single beam bulbs:H1 H3 H4 H7 H8 H9 H10 H11 H13 9004 9005 9006 9007 9140 9145 5202 880 884.
  • ●SPECIFICATIONS - Power for both passenger and driver side headlights.Fuse:30amp Relay:40amp Voltage:12v DC Tubing Material:PVC Compatible 35w-55w.
SaleBestseller No. 5
Wiring Harness 2 Lead, Nirider 12V 40A Rock Switch Relay Fuse Nylon Wiring Harness Kit for LED Light...
  • OVERVIEW - Nirider Nylon Wiring Harness Kit is designed to wire and operate up to two 200W auxiliary lights (Max 400W total). Harness complete with...
  • NYLON MATERIALS - The high-tensile nylon jacket offers superior strength and flexibility, it can handle daily wear and tear, ensuring long-lasting...
  • APPLICATIONS - Compatible with all vehicles, powersports, boats, and devices equipped with a 12V power source. Easy to set up, fit for most of LED...
  • SAFETY & DURABILITY - Heat-resistant, no need to worry about over-current or over-temperature conditions. Waterproof design for durability, relay uses...
  • BOX COME WITH - 14.7ft 2 lead wiring harness, on/off rocker switch, plug-in style 40A relay, ATO style 30A fuse, male and female fully insulated...
Bestseller No. 6
[ALL STAR TRUCK PARTS] Universal HID Battery Wiring Relay Harness 12V 40 AMP 35W/55W - H1 H3 H7 H8...
  • Compatible with 35/55W HID Conversion Kits
  • Designed to be Compatible with HID Bulbs, A Solution choice for Flickering Bulbs (Each Vehicle Varies)
  • Reliable Relay Harness that Draws Power Straight from Battery
  • Compatibility List: H1, H3, H7, H8, H9, H10, H11, 9005, 9006, 880, 881, 9140, and 9145 HID Conversion Kits
  • Simple Plug-and-Play for Easy Installation
SaleBestseller No. 7
Universal H4 9003 Relay Harness conversion kit Complete with Ceramic Sockets H6054 H5054 H6054LL...
  • We where set out on a mission to find a Harness that would install with little effort and was effective would work seamlessly, the Result is what you...
  • YOUR VEHICLE NEEDS THIS - Changing out your old headlights ( H6054 H5054 H6054LL 6014 6052 6053) for LEDs on negative switched vehicles like Toyota,...
  • CONVERSION MADE EASY - Save your self the headache and money and most importantly time ! By utilizing this wiring harness to convert a ground switched...
  • PREMIUM BUILT-NO LOW-QUALITY PARTS HERE - Designed with two XR rated durable relays, high-temperature ceramic headlight sockets, and heat-resistant...
  • THE WAY IT SHOULD BE - We set out to build a harness that would install with as little effort as possible. The result? A conversion harness that takes...
SaleBestseller No. 8
Nilight 50003R Automotive Set 5-Pin 30/40A 12V SPDT with Interlocking Relay Socket and Wiring...
  • High switching capability: Normally open 40A/14V DC and normally close 30A/14V DC. Suitable for Nilight LED light bar wiring harness kit
  • Premium quality: Durable relay and harness socket with 5 wires; Made by high-grade materials to ensure superior quality and long lifespan
  • Male-female slot design: Unique male-female slot design, easy to connect the relay with harness socket, clean and neat after installation
  • Easy wiring: The relay sockets come with different colors for loads/accessories, simple and convenient wiring
  • Package include: 5 x relay and 5 x relay socket with wires.Fit type: Universal fit
Bestseller No. 9
12V Auto Waterproof Fuse Relay Box Block Kit [6 Bosch Style Relay Holder] [6 ATC/ATO Fuse Holder]...
  • COMBINE TO CONQUER - The road ahead just got a bit easier. This relay box kit combines everything you need into one convenient package: a top-notch...
  • REMAP YOUR WIRING - Organize, consolidate, and keep track of multiple independent circuits with six relay sockets and six fuse holders.
  • MULTI-TERRAIN - Our unique "Z" shaped brackets make it possible to securely mount this waterproof relay box just about anywhere.
  • BUILT LIKE A TANK - Made from durable and dependable materials, sporting an IP65 waterproof rating, our relay box doesn’t understand the word...
  • MORE THAN A WARRANTY - We've got you covered with an industry-leading two-year warranty and the best customer support in the business.
Bestseller No. 10
Primelux Universal 12ft Relay Wiring Harness for LED Light Bars - 12V 40A Relay & 3-Pin On/Off...
  • Universal wiring harness – 12ft, 16 AWG, 15 Amps current rating for each lead, suitable for 0-180W LED lights each lead, this wire harness is...
  • Waterproof durability – each wiring harness kit features a 40A relay, waterproof on/off switch and waterproof fuse holder to keep it dry, safe and...
  • Compatible with weather pack connectors – Primelux premium wiring harness adapters come complete with male and female connectors to ensure proper...
  • Quick and easy installation – a modular design and quick-change parts systems make installing our wiring harness kit simple, even for beginner...
  • High-quality craftsmanship – these 12ft wiring harness kits are UL approved and work with a variety of on/off-road vehicles.
SaleBestseller No. 11
Nilight Wiring Harness Kit 14AWG Heavy Duty 12V On-Off Switch Power Relay Blade Fuse for Off Road...
  • Universal fitment: the wiring harness is compatible with all automobiles, boats and devices equipped with a 12V DC power source
  • 12 feet harness: 12ft heavy-duty harness, 14-gauge stranded wire, up to 380W load capacity, the length from relay to switch is extendable
  • Illuminated switch: 3 pin on/off rocker switch with Red Indicator light when truing on, easy to turn on or off, long service life
  • Circuit protection: power relay for safety protection. Blade fuse acts as the first Line of defense against overcurrent and short circuit
  • Package include: 1 x 12 feet wiring harness, 1 x instructions
Bestseller No. 12
LED Light Bar Wiring Harness Auto Power Plus Wiring Harness Kit for LED Lights 450W 12V 30A Fuse...
  • WIDE USES - Our light bar wiring harness has 1 lead with 450W load capacity, it is universal fit for any size light bar, off road light, led work...
  • EXCLUSIVE DESGIN - Flexible strand copper wires are wrapped by AWM rate PVC that insulates up to 105¡æ, the durable hollow nylon protect layer...
  • SAFE PROTECTION - This LED pod wiring harness has 30A Fuse and 40A 14V Relay, it is over-voltage, over-current, over-heat and short-circuit protection...
  • FEATURES - Designed to provide trouble-free plug and play connector. The waterproof ON/OFF switch has extremely high sensitivity and it is so easy to...
  • PACKAGE & GUARANTEE - Package included: 1 x 1 Lead Wiring Harness, 1 x Fuse, 1 x Relay, 1 x On/Off rocker switch. Offer our 1 year quality guarantee...
Bestseller No. 13
iJDMTOY (1) Universal Fit Relay Harness Wire Kit with LED Light ON/Off Switch Compatible with Fog...
  • Good for any system between 9V-16V with wattage not exceeding 160W
  • Comes with relay module box, wiring harness w/ adapters, safety fuse box, and LED indicator on/off switch
  • Good For Replacement fog lamps, Add-on fog lights, xenon LED lights, LED daytime running lights, Driving lights, LED work lights, Off-road lighting...
Bestseller No. 14
DZG Universal LED Light Wiring Harness Kit 12V with Relay 30A Fuse On Off Switch for Motorcycle...
  • This motorbike wiring harness kit comes with everything you need for installing LED lights: 2 sets of light connectors, 40A relay, waterproof 30A...
  • TWO LEADS: 2 sets of light connectors, install 2 LED lights to motorbike with this auto LED light wiring kit, such as work lights, driving lamps, fog...
  • CIRCUIT PROTECTION: Waterproof inline fuse and relay for multiple safety protection, protect your vehicle from damage if over-current or short circuit...
  • UNIVERSAL FITMENT: Compatible with 12V motorcycles; 100% plug and play, non-destructive installation.
  • DURABILITY: High bending performance and melting resistance ensure long lasting durability.
Bestseller No. 15
Mofun Universal 2 Lead LED Light Bar Wiring Harness Kit Rocker Switch Blue Relay On Off Fuse...
  • 【Fitment】: Fit most of car,Jeep,SUV,ATV,UTV,motorcycle,truck,and other off-road vehicles.
  • 【Specifications】: The switch is made of plastic,surface cover is stream curved design. 2 wires are used for 2 lamp output connections (each wire...
  • 【High Performance】: Blue light on the face of the switch,help you clearer see it in the dark.A wire harness up to 10 feet long is enough to place...
  • 【Installation】: Easy to install. 10ft of wiring from relay to lightscan ,easily turn on/off the lights.
  • 【Package Including】: 1x LED Light Bar Wiring Harness Kit with Fuse and Relay, 2 x lead.1x LED Light Bar Rocker Switch.
Bestseller No. 16
Innovited HID relay wiring harness Universal for all single bulb size H1, H3, H4, H7, H8, H9, H10,...
  • 40A/12VDC 30Amp Fuse SPST relay configuration
  • Support 35W and 55W Lights
  • Protects your HID system by power directly from your battery
  • Eliminate flickering due to low electrical current
  • compatible with all HID single bulbs H1, H3, H4, H7, H8, H9, H10, H11, H13, 9004, 9005, 9006, 9007, 5202, 880, 884
Bestseller No. 17
#1 Fog Light 40 Amp Universal Wiring Harness on the Market! comes w/Relay ON/OFF Switch connectors...
  • Our Wiring Harness handles up to a 320w 52" LED light bar!
  • Designed for LED Light Bars or Dual LED Light Bars
  • Illuminated on/off switch, More than 8ft of wiring
  • 40A Power Relay, 30A Blade Fuse, 4 Male wire connectors
  • 2 sets of power connectors to light fixtures
Bestseller No. 18
Universal 12V Horn Wire Wiring Harness Relay Kit for Motorcycle Car Truck Grille Mount Blast Tone...
  • Voltage: 12V Working current: 40 - 80A
  • Made with Hiquality 18 Gauge wire, high efficient copper wiring
  • Cable length: Arround 170cm/69 inches
  • Universal for most grille mount electric blast horns (including all Hella Blast Horns)
  • Package include one set horn wire harness(Horn NOT included!)
Bestseller No. 19
Lumitek Universal LED Light Bar Remote Wiring Harness Kit with 40A/12V ON/OFF Switch Relay for Off...
  • Detail:Operating Voltage: 12V,Amp: 40A ,Power Relay Fuse: 40A ,Blade Fuse: ≤180W
  • 2 Wiring Leads: Simultaneously connect 2 LED work lights or 2 small watt LED light bar within 180W
  • Universal Fit: Plug and play,compatible with all automobiles, boats and devices equipped with a 12V power source.
  • Wiring harness kit with on/ off switch at the length of 3m, plenty of length to put it where you want
  • Package include: 1X Wiring Harness,1 X Flash Remote Control Kit.
Bestseller No. 20
Kairiyard LED Motorcycle Light Wiring Harness Kit 13ft 14AWG 2 Leads Universal Driving Light Bar...
  • ✿【What Makes It Different to Others Wiring Harness?】This motorcycle wiring harness comes with a powerful switch of 3 channels, which can realize...
  • ✿【Intelligent Sensor Surveillance System】This LED motorcycle driving light wiring harness can smartly sensor after the motorcycle start, then...
  • ✿【Efficient Protection】Built-in blade fuse being as the first line of defence aginst over current and short circuit, this 2 light wiring harness...
  • ✿【Widely Used】The led light bar wiring harness is suitable for all lights, flexible strand copper wire up to 480W heavy-duty load capacity, and...
  • ✿【Plug-Play】Equipped with high-quality waterproof switch(with Adhesive on the back), sealed with a rubber ring that works against dust, moisture...

Having trouble finding a great universal relay wiring?

This problem is well understood by us because we have gone through the entire universal relay wiring research process ourselves, which is why we have put together a comprehensive list of the best universal relay wirings available in the market today.

After hours of searching and using all the models on the market, we have found the best universal relay wiring for 2023. See our ranking below!

How Do You Buy The Best Universal Relay Wiring?

Do you get stressed out thinking about shopping for a great universal relay wiring? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching universal relay wiring, which is why we have assembled a comprehensive list of the greatest universal relay wiring available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for universal relay wiring that you consider buying. Your questions might include the following:

  • Is it worth buying an universal relay wiring?
  • What benefits are there with buying an universal relay wiring?
  • What factors deserve consideration when shopping for an effective universal relay wiring?
  • Why is it crucial to invest in any universal relay wiring, much less the best one?
  • Which universal relay wiring are good in the current market?
  • Where can you find information like this about universal relay wiring?

We’re convinced that you likely have far more questions than just these regarding universal relay wiring, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for universal relay wiring, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible universal relay wiring. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an universal relay wiring buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available universal relay wiring currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of universal relay wiring has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an universal relay wiring?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your universal relay wiring.
  5. Customer Ratings: Number ratings grade universal relay wiring objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their universal relay wiring.
  7. Product Quality: You don’t always get what you pay for with an universal relay wiring, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an universal relay wiring is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining universal relay wiring information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding universal relay wiring is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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