{"product_id":"partsam-4-flange-mount-backup-reverse-light-2-pack-white-12-led-waterproof-low-profile","title":"Partsam 4\" Flange-Mount Backup Reverse Light 2-Pack White — 12-LED Waterproof Low-Profile","description":"\u003cstrong\u003ePartsam's 2-pack 4-inch flange-mount reverse lights are sealed, waterproof 12-LED lamps designed for reliable backup illumination on trucks, trailers, RVs and boats.\u003c\/strong\u003e\n\n\u003cp\u003eThese compact flange-mounted reverse lights combine a rugged molded housing with a sonic-welded acrylic lens to form a single waterproof assembly that resists corrosion and weather. Each lamp measures roughly 140 mm outer diameter with a 105 mm inner cutout, and installs with a 104 mm bolt pattern—intended for recessed flange mounting where a low-profile, durable backup light is needed.\u003c\/p\u003e\n\n\u003ch3\u003eHow durable are these lights for outdoor use?\u003c\/h3\u003e\n\u003cp\u003eThey are built with an all-weather plastic body and a lens welded to the housing for a sealed unit that keeps out moisture and contaminants. That construction minimizes points of water entry and reduces corrosion risk compared with multi-piece assemblies.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSonic-welded acrylic lens bonded to housing to maintain a watertight seal\u003c\/li\u003e\n  \u003cli\u003eMolded plastic housing resists rust and outdoor wear\u003c\/li\u003e\n  \u003cli\u003eDesigned for use on trucks, trailers, RVs and marine applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the sizing and installation details I should know?\u003c\/h3\u003e\n\u003cp\u003eEach light has an outer diameter near 140 mm (about 5.5\") with a 105 mm (4.1\") inner opening; the mounting hole centers are 104 mm apart and drilling is required for flange installation. The unit profile is slim (approximately 24 mm high) so it fits into recessed or low-clearance locations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOuter diameter: 140 mm (5.5\"); inner diameter: 105 mm (4.1\")\u003c\/li\u003e\n  \u003cli\u003eOverall height: ~24 mm (0.9\") for low-profile mounting\u003c\/li\u003e\n  \u003cli\u003eMounting hole distance: 104 mm; drilling required for flange holes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I wire these reverse lights and what functions do the wires control?\u003c\/h3\u003e\n\u003cp\u003eEach lamp is factory hardwired with three color-coded conductors to simplify connection: a white ground, a red lead for the brighter\/high-output circuit, and a black lead for the lower-output circuit. That wiring supports installations needing both reduced and full-intensity backup illumination without modifying the sealed housing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWhite wire = ground connection for safe, stable grounding\u003c\/li\u003e\n  \u003cli\u003eRed wire = high-brightness circuit for stronger illumination\u003c\/li\u003e\n  \u003cli\u003eBlack wire = low-brightness circuit for less intense output\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat lighting performance and applications can I expect?\u003c\/h3\u003e\n\u003cp\u003eEach lamp contains 12 white LEDs arranged to provide bright, even reverse lighting. The sealed construction and LED efficiency make them suitable as dedicated backup lamps or auxiliary reverse lights on work trucks, trailers, RVs, and small boats where long life and moisture resistance are important.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e12 high-efficiency LEDs per lamp for crisp white illumination\u003c\/li\u003e\n  \u003cli\u003eLow-profile flange design fits recessed mounting points\u003c\/li\u003e\n  \u003cli\u003eTwo intensity leads allow flexible brightness control in one fixture\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: these Partsam 4\" flange-mount reverse lights are aimed at vehicle owners and fabricators who need compact, waterproof backup lamps that withstand outdoor conditions. They suit professional fleets, trailer builders, RV enthusiasts, and boat owners seeking a sealed LED lamp with simple three-wire wiring and a low-profile flange fit. If you need robust reverse lighting that resists moisture and offers selectable brightness without opening the housing, this two-piece set is a practical, installation-friendly option.\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: Are these reverse lights waterproof?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The lens is sonic-welded to the housing creating a sealed, waterproof unit suitable for outdoor and marine use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which wire is which on the hardwired leads?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: White is ground, red is the high-brightness lead, and black is the low-brightness lead.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Partsam","offers":[{"title":"Default Title","offer_id":67591515570361,"sku":"B01E5AKOL0","price":64.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/partsam-front-view-flange-mount.jpg?v=1790553969","url":"https:\/\/redleafauto.ca\/products\/partsam-4-flange-mount-backup-reverse-light-2-pack-white-12-led-waterproof-low-profile","provider":"Redleaf Auto","version":"1.0","type":"link"}