--- product_id: 155789201 title: "Waterproof 40/30 AMP Relay" brand: "nilight" price: "€ 59.55" currency: EUR in_stock: true reviews_count: 13 category: "Nilight" url: https://www.desertcart.es/products/155789201-waterproof-40-30-amp-relay store_origin: ES region: Spain --- # 40A max switching current Waterproof & dustproof sealed design Heavy-duty 12 AWG pure copper wiring Waterproof 40/30 AMP Relay **Brand:** nilight **Price:** € 59.55 **Availability:** ✅ In Stock ## Summary > 💼⚡ Power your ride with pro-grade relays that never quit! ## Quick Answers - **What is this?** Waterproof 40/30 AMP Relay by nilight - **How much does it cost?** € 59.55 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/155789201-waterproof-40-30-amp-relay) ## Best For - nilight enthusiasts ## Why This Product - Trusted nilight brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Heavy-Duty Copper Core:** Premium 12 AWG tinned copper wires deliver superior conductivity and durability for demanding automotive use. - • **Trusted Quality & Warranty:** Backed by a 2-year warranty and 4.6-star rating from over 1,200 users—join the community of pros who rely on Nilight. - • **Power Through Any Condition:** Waterproof, dustproof, and moisture-proof sealing ensures flawless relay performance rain or shine. - • **Versatile 5-Pin SPDT Design:** Supports up to 40A switching current with reliable normally closed contacts for flexible circuit control. - • **Plug & Play Pre-Wired Harness:** Comes with color-coded 5-wire harness for quick, hassle-free installation—no guesswork needed. ## Overview The Nilight 5 Pack Waterproof Relay and Socket Harness features heavy-duty 12 AWG tinned copper wiring and a robust 5-pin SPDT relay design rated for up to 40A switching current. Engineered with a fully sealed waterproof and dustproof housing, this set ensures reliable automotive, marine, and RV electrical performance in all weather conditions. Pre-wired for easy installation and backed by a 2-year warranty, it’s a top choice for professionals demanding durability and efficiency. ## Description Buy Nilight 5 Pack Waterproof Relay and Socket Harness 40/30 AMP | Heavy Duty 12 AWG Tinned Copper Wires Pure Copper Core 5-PIN SPDT 12V Automotive Car Trucks RV Marine Boat: Battery Switches - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Good relays - Used one so far, works great. Review: Work as expected - Good product. ## Features - 12 V DC automotive waterproof relays (max 14 V). Note: 12 V and 14 V are coil voltages, they are not the voltage that triggers the switch - Premium quality: durable relay and harness socket with 5 wires; made from high-grade materials to ensure superior quality and long lifespan - Pre-wired Harness: Heavy duty 12/16 AWG wiring harness. Black - 16AWG Pin85, White - 16AWG Pin86, Red - 12AWG Pin30 Yellow - 12AWG Pin87a, and Blue - 12AWG Pin87 - Enhanced Waterproof - The 5-Pin relays are tightly sealed with strong cap and seal ring, excellent performance of waterproof, dust proof and moisture proof, works well in any weather conditions - Package includes: 5 pack Waterproof Relay and Harness. 1x User manual ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07V9M7FMH | | Best Sellers Rank | #3,394 in Automotive ( See Top 100 in Automotive ) #9 in Automotive Replacement Battery Switches | | Brand | Nilight | | Brand Name | Nilight | | Coil Resistance | 100 megaohms | | Coil Voltage | 12 volts | | Connector Type | Through Hole | | Contact Current Rating | 30 A | | Contact Material | Copper | | Contact Type | Normally Closed | | Current Rating | 30 A | | Customer Reviews | 4.6 out of 5 stars 1,221 Reviews | | Global Trade Identification Number | 00812227032197 | | Included Components | 5 pack Waterproof Relay and Harness | | Item Highlight | Heavy Duty 12 AWG Tinned Copper Wires Pure Copper Core 5-PIN SPDT 12V Automotive Car Trucks RV Marine Boat | | Item Type Name | Nilight 50044R 5 Pack Waterproof 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Bosch Style 12V Automotive Relay and Harness Set,2 Year Warranty | | Manufacturer | Nilight | | Maximum Switching Current | 40 A | | Maximum Switching Voltage | 14 volts | | Minimum Switching Voltage | 14 volts | | Model | 50044R | | Mounting Type | Wall Mount | | Number of Items | 1 | | Operation Mode | Manual | | Part Number | 50044R | | Specification Met | CE | | UPC | 812227032197 | | Unit Count | 5 Count | | Warranty Description | 2 Years Warranty | ## Product Details - **Connector Type:** Through Hole - **Contact Material:** Copper - **Contact Type:** Normally Closed - **Current Rating:** 30 A - **Mounting Type:** Wall Mount ## Images ![Waterproof 40/30 AMP Relay - Image 1](https://m.media-amazon.com/images/I/71PMNhBvihL.jpg) ![Waterproof 40/30 AMP Relay - Image 2](https://m.media-amazon.com/images/I/71wOb3mgv0L.jpg) ![Waterproof 40/30 AMP Relay - Image 3](https://m.media-amazon.com/images/I/61bSlG9epaL.jpg) ![Waterproof 40/30 AMP Relay - Image 4](https://m.media-amazon.com/images/I/71kaCKeQ4CL.jpg) ![Waterproof 40/30 AMP Relay - Image 5](https://m.media-amazon.com/images/I/71h5p5g+XSL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Can I get 6 waterproof relays with sockets? I need 2 each for 3 windows.** A: No **Q: will this work with 2010 hyundai santa fe passenger mirror relay? I'm getting a clicking/ knocking sound from the passenger mirror** A: the relay will not work for you, the relay is for horns, lights, plow equipment, or trailer brakes, the problem is , the internal system in the mirror is warn out, you need a new mirror, and that's about two hundred usd, and your mirror is ten years old **Q: Can this be used as a flasher?** A: Maybe not a "flasher" since there is a steady blue light at the end where the magnetic adapter rip fits, bit it does light up there. **Q: How many amps (at 12v) does the (+) switch pull to open the relay?** A: Ohms law I=E/R 12V/80 Ohms = 150mA or 0.15 Amps ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good relays *by B***. on July 24, 2026* Used one so far, works great. ### ⭐⭐⭐⭐⭐ Work as expected *by A***R on July 17, 2026* Good product. ### ⭐⭐⭐⭐⭐ Great weatherproof relays *by J***Y on February 15, 2026* These relays are a good price for the quality. Nice and sealed and havent had a issue. Highly recommend these ## Frequently Bought Together - Nilight 50044R 5 Pack Waterproof 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Bosch Style 12V Automotive Relay and Harness Set - Nilight 10 Pack NI-FH01 Inline Holder 14AWG Wiring Harness ATC/ATO 30AMP Blade Automotive Fuse Holder-10, 2 Years Warranty - Nilight 50003R Automotive Set 5-Pin 30/40A 12V SPDT with Interlocking Relay Socket and Wiring Harness-5 Pack, 2 Years Warranty --- ## 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.es/products/155789201-waterproof-40-30-amp-relay](https://www.desertcart.es/products/155789201-waterproof-40-30-amp-relay) --- *Product available on Desertcart Spain* *Store origin: ES* *Last updated: 2026-09-13*