{"product_id":"nilight-3-9-inch-led-side-marker-lights-4-pack-amber-red-12v-weatherproof-low-profile","title":"Nilight 3.9-inch LED Side Marker Lights 4-Pack Amber\/Red — 12V Weatherproof, Low-Profile","description":"\u003cp\u003e\u003cstrong\u003eNilight 4PCS 3.9-inch LED side marker lights provide bright, weatherproof amber or red signaling for trailers, trucks, RVs, and commercial vehicles.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese compact, low-profile marker lights combine high-output LEDs with a sealed housing to give reliable visibility on the road. Each kit includes four 3.9-inch lamps that mount on the vehicle’s front, rear, side, or roofline and run on any standard 12V system. The lights use upgraded Piranha-style LEDs for stronger illumination, wider beam spread, and longer service life while keeping installation simple for DIY or professional fitment.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these lights improve visibility for trailers and trucks?\u003c\/h3\u003e\n\u003cp\u003eThe upgraded LEDs deliver a more intense and consistent beam than traditional bulbs, making your vehicle easier to spot in low light or poor weather. The wider lighting angle helps other drivers recognize vehicle width and position sooner, improving safety during lane changes and turns.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBright amber or red LED output for clear signaling\u003c\/li\u003e\n  \u003cli\u003eWider beam spread improves side and corner detection\u003c\/li\u003e\n  \u003cli\u003eConsistent light without flicker common to older bulbs\u003c\/li\u003e\n  \u003cli\u003eWorks on any 12V vehicle electrical system\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these lights durable enough for outdoor and marine use?\u003c\/h3\u003e\n\u003cp\u003eYes—the lens and housing are sonically welded into a single, sealed unit and the internal LEDs are surface-sealed, creating strong resistance to moisture and dust. The construction is intended for heavy-duty environments, from highway exposure to coastal and wet conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSonic weld seals lens to housing for weather protection\u003c\/li\u003e\n  \u003cli\u003eSurface-sealed internal LEDs to resist moisture ingress\u003c\/li\u003e\n  \u003cli\u003eRugged materials resist road vibration and impacts\u003c\/li\u003e\n  \u003cli\u003eDesigned for continuous outdoor exposure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow straightforward is installation for a DIYer?\u003c\/h3\u003e\n\u003cp\u003eInstallation is designed to be simple: each light uses a two-wire connection—black for ground and red for positive—so wiring ties into existing circuits quickly. The base mounts with included flat-head screws and the light snaps into place; you can route the back wire either through a drilled center hole or by using washers to leave clearance without drilling.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo-wire hookup: black ground, red positive\u003c\/li\u003e\n  \u003cli\u003eIncludes flat-head screws and snap-in light base\u003c\/li\u003e\n  \u003cli\u003eFlexible wiring: drill center hole or use washers for wire gap\u003c\/li\u003e\n  \u003cli\u003ePlug-and-play for most 12V vehicle systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat sizes, colors, and applications suit these marker lights?\u003c\/h3\u003e\n\u003cp\u003eEach lamp measures 3.9 inches and is available in amber or red output to meet common marker and clearance light requirements. They are suitable for pickups, trailers, RVs, caravans, buses, lorries, vans, campers, and boats that use 12V electrical systems for auxiliary lighting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3.9\" compact profile fits tight mounting locations\u003c\/li\u003e\n  \u003cli\u003eAmber for side\/front signaling, red for rear\/clearance use\u003c\/li\u003e\n  \u003cli\u003eCompatible with trucks, trailers, RVs, and marine vessels\u003c\/li\u003e\n  \u003cli\u003eIdeal for replacement or additional marker installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this product for? Professional fleets, weekend DIYers, and recreational vehicle owners who need dependable, bright marker lights will benefit from this Nilight set. If you want a low-maintenance upgrade with straightforward wiring, weatherproof construction, and stronger light coverage than incandescent markers, these 3.9-inch LED units are a practical choice.\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: Will these lights work with a 24V truck system?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They are designed for 12V systems; using on 24V requires a compatible voltage reducer or relay to prevent damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install without drilling a center hole for the wire?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—mount the base with washers to create space for the wire lead instead of drilling a center hole.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Nilight","offers":[{"title":"Default Title","offer_id":48086911058078,"sku":"B08K8T53KT","price":31.33,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/nilight-front-view-packaging-marker-lights.jpg?v=1785909456","url":"https:\/\/northtrailauto.ca\/products\/nilight-3-9-inch-led-side-marker-lights-4-pack-amber-red-12v-weatherproof-low-profile","provider":"North Trail Auto","version":"1.0","type":"link"}