--- product_id: 25594778 title: "9006 9005 to H4 Conversion SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon JDM EDM 12v PlugNPlay" brand: "autotechsalon" price: "āļŋ257" currency: THB in_stock: false reviews_count: 2 url: https://www.desertcart.co.th/products/25594778-9006-9005-to-h4-conversion-slimline-ceramic-relay-wiring-harness store_origin: TH region: Thailand --- # 40amp relays 100w brightness PlugNPlay install 9006 9005 to H4 Conversion SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon JDM EDM 12v PlugNPlay **Brand:** autotechsalon **Price:** āļŋ257 **Availability:** ❌ Out of Stock ## Summary > 🚗 Illuminate Your Drive with Style! ## Quick Answers - **What is this?** 9006 9005 to H4 Conversion SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon JDM EDM 12v PlugNPlay by autotechsalon - **How much does it cost?** āļŋ257 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/25594778-9006-9005-to-h4-conversion-slimline-ceramic-relay-wiring-harness) ## Best For - autotechsalon enthusiasts ## Why This Product - Trusted autotechsalon brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - â€Ē **Complete Package:** Includes industrial-strength zip ties for a seamless upgrade experience! - â€Ē **Unleash the Power:** Transform your headlights with dual 40amp relays for maximum performance! - â€Ē **Space-Saving Design:** Experience 50% more flexibility with our custom snug-fit insulation! - â€Ē **Upgrade Your Vision:** Convert any 9006/9005 system to H4 for enhanced lighting capabilities! - â€Ē **Effortless Installation:** Enjoy a hassle-free, plug-and-play setup in just 30 minutes! ## Overview The AutoTechSalon 9006 9005 to H4 Conversion SLIMLINE Ceramic Relay Wiring Harness is designed for automotive enthusiasts looking to upgrade their headlight systems. Featuring dual 40amp relays for reliable operation, this plug-and-play solution allows for easy conversion between 9006/9005 and H4 bulbs, enhancing brightness up to 100 watts. With a streamlined design and included zip ties, installation is quick and efficient, ensuring your vehicle maintains its original integrity while boosting visibility. ## Description Our best in the industry 9006 9005 to h4 conversion ceramic fused headlight wiring harness just got better for 2015! This single plug n' play harness will allow you to easily convert any existing 4 bulb 9006/9005 headlight setup into a 2 bulb h4 high/low beam system...or vice versa! Ever notice how your headlight bulbs simply seem dull or get dimmer at night when you have other accessories on such as your defroster/stereo/AC/ etc? That's where this harness comes in! Stock OEM headlight harnesses and plugs are simply unable to handle the heavy loads of day to day driving while maintaining maximum power efficiency. Utilizing this completely plug and play kit, you will notice a significant increase in brightness and output from your vehicles' stock or aftermarket halogen bulbs due to your lights now drawing power more efficiently from your battery. Comes with everything out of the box needed to upgrade your flimsy, OEM headlight sockets and wiring to the highest quality, precision engineered ceramic sockets. The pics speak for themselves, these harnesses are top quality throughout and feature the best components to ensure both a safe and economical upgrade to any motorcycle or vehicle. Features all 24k gold plated contacts for maximal power transfer and efficiency, a revised monoblock relay input assembly, NEW quick-release conversion input and output sockets, and custom-form puncture and electromagnetic shielded rubber insulation for an over 50% space conservation over our competition! An inline 40 amp replaceable blade fuse (included) ensures your vehicles engine compartment and electrical components do not incur any damage in case of a shortage or voltage spike. This harness is a MUST for any vehicle currently equipped with 9006/9005 or H4 sized headlight bulbs or foglights! Experience brighter lit roads and increased night driving safety! ## Features - Dual MONSTROUS 40amp independent relays, housed in beautiful translucent casings, offering the highest level of protection and reliable operation for h4 bulbs up to 100 watts! Redesigned monoblock relay input assembly offers more robust durability than our previous design. - Simple plug and play 30 minute installation! ZERO cutting or splicing. Retain all original vehicle integrity and functionality. - Can convert any 4 bulb 9006/9005 headlight system into a fully functional dual filament H4 headlight setup, or vice versa! Especially perfect for those wanting to perform jdm or euro spec headlight conversions where the bulb sizes differ. No more dangerous and confusing cutting/splicing! Or can simply be used to upgrade your existing 9006/9005 or h4 bulbs to increase stock bulb brightness, or upgrading to increased wattage bulbs which would melt flimsy OEM bulb sockets and wiring. - NEW Custom snug-fit flexible rubber insulation tubing offers a space saving of over 50% over our previous version's loose-fit ribbed plastic insulation. MUCH greater wire flexibility for tight angles + vastly increased space saving = a far more elegant and streamline installation - Includes 3 industrial strength translucent zip ties as a bonus, for a complete 'out of the box' upgrade solution ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | AutoTechSalon | | Item Weight | 1.3 pounds | | Product Dimensions | 5 x 8 x 4 inches | | Manufacturer Part Number | ATS-90069005TOH4RELAYV2 | | Voltage | 12 Volts | | Wattage | 100 watts | ## Images ![9006 9005 to H4 Conversion SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon JDM EDM 12v PlugNPlay - Image 1](https://m.media-amazon.com/images/I/71TtuG6+G8L.jpg) ![9006 9005 to H4 Conversion SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon JDM EDM 12v PlugNPlay - Image 2](https://m.media-amazon.com/images/I/71zXYawfFcL.jpg) ![9006 9005 to H4 Conversion SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon JDM EDM 12v PlugNPlay - Image 3](https://m.media-amazon.com/images/I/81vpRYFHxgL.jpg) ![9006 9005 to H4 Conversion SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon JDM EDM 12v PlugNPlay - Image 4](https://m.media-amazon.com/images/I/81hSz-QzVtL.jpg) ![9006 9005 to H4 Conversion SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon JDM EDM 12v PlugNPlay - Image 5](https://m.media-amazon.com/images/I/81XW1WyWgpL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ 4.0 out of 5 stars Good product, so-so quality control. *by A***R on Reviewed in the United States on November 28, 2016* I wired everthing up correctly, but one of the relays was miswired. I could see one of the relays not move when switching between hi/low beams. Other than this quality control issue, it has been working well without any other issues. This was more of an inconvenience than a problem, but because of this, it was not truly plug and play. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Five Stars *by P***T on Reviewed in the United States on December 3, 2016* Very well produced kit. Each bundle seems strong and well built. Would definitely buy again if needed. --- ## 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.co.th/products/25594778-9006-9005-to-h4-conversion-slimline-ceramic-relay-wiring-harness](https://www.desertcart.co.th/products/25594778-9006-9005-to-h4-conversion-slimline-ceramic-relay-wiring-harness) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-06-03*