{"product_id":"ijdmtoy-h11-h8-relay-harness-wire-kit-dual-output-led-on-off-pushbutton-inline-fuse","title":"iJDMTOY H11\/H8 Relay Harness Wire Kit — Dual Output, LED On\/Off Pushbutton, Inline Fuse","description":"\u003cp\u003e\u003cstrong\u003eThe iJDMTOY H11\/H8 relay harness is a ready-to-install wiring kit that lets you safely power and switch two H11\/H8\/H9 light outputs from the battery using a 4-pin relay and an LED on\/off pushbutton.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact kit combines a prewired SPST 4-pin relay module, inline fuse holder, and a teardrop pushbutton with green\/red LED so you can drive auxiliary fog lights, driving lamps, or off-road light pods without stressing the vehicle's factory wiring. The harness routes switched power from the battery, includes trigger wiring for interior mounting, and supports common 12V lighting loads up to the relay's rated amperage for reliable on\/off control.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this relay harness keep my vehicle wiring safe?\u003c\/h3\u003e\n\u003cp\u003eBy taking heavy current directly from the battery through a dedicated relay and fuse, the kit prevents excessive current from flowing through factory headlight circuits and thin dash wiring. The included 4-pin SPST relay handles the high load while the inline fuse protects the circuit from overload or short conditions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect battery feed reduces stress on stock wiring and switches\u003c\/li\u003e\n\u003cli\u003eInline fuse matched to the relay protects against shorts\u003c\/li\u003e\n\u003cli\u003e4-pin socketed relay simplifies replacement and maintenance\u003c\/li\u003e\n\u003cli\u003eRated for typical 12V lighting loads within 30–40A relay limits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat lights and loads are compatible with this H11\/H8 harness?\u003c\/h3\u003e\n\u003cp\u003eDesigned with dual H11\/H8\/H9 outputs, the harness easily powers common fog lamps, driving lights, and small LED light bars or pods. It suits light combinations drawing up to the relay’s recommended wattage, provided total current stays within the relay and vehicle wiring limits.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDual outputs accommodate two separate H11\/H8\/H9-style lamps\u003c\/li\u003e\n\u003cli\u003eBest for lights operating at 9–16V DC and combined wattage under relay limits\u003c\/li\u003e\n\u003cli\u003eWorks well with LED and halogen fog\/driving lamps or small off-road pods\u003c\/li\u003e\n\u003cli\u003eUse multiple relays for larger lightbars to distribute loads safely\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install the kit and wire the switch inside the cabin?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: mount the relay and fuse near the battery, route the positive\/negative battery leads, and run the trigger wire through a firewall grommet to the dash area for the pushbutton. The teardrop pushbutton has double-sided tape for mounting and a visible green\/red LED to show on\/off status.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAttach red\/black battery leads to + and - or ACC as preferred\u003c\/li\u003e\n\u003cli\u003eSecure relay with its socket and mount inline fuse close to the battery\u003c\/li\u003e\n\u003cli\u003eRun trigger wire into cabin and connect to the pushbutton switch\u003c\/li\u003e\n\u003cli\u003eConnect dual H11\/H8 outputs to your lamps, verify polarity and grounding\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the kit’s durability and compatibility notes?\u003c\/h3\u003e\n\u003cp\u003eThe harness uses standard automotive connectors and a teardrop pushbutton designed for general-purpose dashboard use, with mounting tape for a clean fit. While the relay supports typical automotive lighting loads, confirm your combined lamp wattage does not exceed the relay’s rated current for consistent long-term performance.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStandard 12V automotive relay rated for common lighting applications\u003c\/li\u003e\n\u003cli\u003eWeather-exposed components should be mounted in protected areas\u003c\/li\u003e\n\u003cli\u003eFits most vehicles that accept aftermarket battery-fed relay harnesses\u003c\/li\u003e\n\u003cli\u003eReplaceable fuse and socketed relay simplify future service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The iJDMTOY H11\/H8 relay harness is aimed at DIY installers, automotive enthusiasts, and technicians who want a safer, cleaner way to add or control auxiliary fog, driving, or off-road lights. Choose this kit if you need a compact, battery-fed relay solution with an illuminated cabin switch to prevent factory wiring overload and provide simple on\/off control for up to two H11\/H8\/H9-style lamps.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this harness run two H11 fog lights at once?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—connect both H11 outputs to your fog lamps, ensuring combined current stays within the relay’s rated amperage and the inline fuse value.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need to drill to mount the pushbutton switch?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Not necessarily—the teardrop switch includes double-sided tape for surface mounting; drilling is optional for a flush installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"iJDMTOY","offers":[{"title":"Default Title","offer_id":48084338606238,"sku":"B019J7XIGC","price":29.13,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ijdmtoy-relay-harness-front-view.jpg?v=1785850673","url":"https:\/\/northtrailauto.ca\/products\/ijdmtoy-h11-h8-relay-harness-wire-kit-dual-output-led-on-off-pushbutton-inline-fuse","provider":"North Trail Auto","version":"1.0","type":"link"}