{"product_id":"qbp437139","title":"Hella Marine Halogen 8504 Series Masthead\/Deck Floodlight Lamp, 3 NM Visibility, 12V Bulbs Included, IPX4","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Hella Marine 8504 Series is a combined masthead navigation lamp and deck floodlight for vessels under 20 m (65 ft), with a 3 nautical mile masthead light built into the same housing as a forward-facing work light for the deck and superstructure. It uses halogen lamps, with a 12V \/ 10W BAY15d bulb for the masthead light and a 12V \/ 55W H3 bulb for the deck floodlight, and it is rated IP X4 for splash exposure.\u003c\/p\u003e\u003cp\u003eMounting is set up for a mast installation where the housing arms flex around the mast profile, and the masthead lamp and deck floodlight are wired separately so they can be switched independently. The housing is plastic that resists UV and impacts, the lens is glass bonded to the reflector to help keep out dust and moisture, and the metal parts are stainless steel.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eTwo functions in one unit: 3 nautical mile masthead navigation light plus a deck floodlight for working light on deck and superstructure\u003c\/li\u003e\n\u003cli\u003eFor vessels under 20 m (65 ft) length applications\u003c\/li\u003e\n\u003cli\u003eSeparate wiring for masthead lamp and deck floodlight for independent control at the panel\u003c\/li\u003e\n\u003cli\u003eHalogen bulbs: 12V \/ 10W BAY15d (masthead) and 12V \/ 55W H3 (deck) included\u003c\/li\u003e\n\u003cli\u003eHousing arms flex to fit around different mast profiles\u003c\/li\u003e\n\u003cli\u003ePlastic housing that resists UV and impacts, with stainless steel metal parts\u003c\/li\u003e\n\u003cli\u003eIP X4 splash protection for exposed mounting locations\u003c\/li\u003e\n\u003cli\u003eDeck lamp maximum output is 55W at 12V and it is not suitable for 100W bulbs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eVariants\u003c\/h6\u003e\u003cp\u003eThis light is offered in multiple configurations based on housing color.\u003c\/p\u003e\u003cp\u003eHousing color varies by part number. The lighting functions, bulb types, mounting approach, and separate masthead and floodlight wiring remain consistent across the range.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e998504001: Housing color Black housing. A darker housing tends to visually blend with many spars, spreaders, and rigging setups.\u003c\/li\u003e\n\u003cli\u003e998504011: Housing color White housing. A lighter housing typically matches white or light-painted masts and helps keep a uniform look aloft.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eCompatibility and fit\u003c\/h6\u003e\u003cp\u003eThis is a mast-mounted combination light for boats that need a COLREG-style masthead light with a separate deck floodlight in the same fixture. It is intended for vessels under 20 m, and the masthead lamp meets a 3 nautical mile visibility rating. Make sure you have enough clearance for the body and wiring at the mounting point, especially if you have a spinnaker pole track, radar mount, or other hardware nearby.\u003c\/p\u003e\u003ch6\u003eInstallation and wiring\u003c\/h6\u003e\u003cp\u003ePlan for two switched positive feeds so the masthead lamp and deck floodlight can be controlled separately, plus the appropriate return wiring. Route cables with strain relief and a drip loop at the entry point, and seal any penetrations to suit your mast and exposure. Aim the floodlight so it lights the working area without throwing glare back toward the helm.\u003c\/p\u003e\u003ch6\u003eRegulatory notes\u003c\/h6\u003e\u003cp\u003eThe unit carries approvals including BSH, IMO COLREG, USCG, ABYC A-16, NMSC, and Maritime NZ. Always confirm your vessel lighting arrangement and mounting position meet the rules that apply to your boat and operating area.\u003c\/p\u003e\u003ch6\u003eMaintenance and bulb replacement\u003c\/h6\u003e\u003cp\u003eHalogen lamps run hot, so allow the light to cool before servicing. Replace with the correct bulb types: BAY15d 12V \/ 10W for the masthead lamp and H3 12V \/ 55W for the deck floodlight. Keep the lens and sealing surfaces clean and check that fasteners stay tight after the first few runs, especially if the mast sees heavy vibration.\u003c\/p\u003e\u003ch6\u003eWhat's included\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eHalogen 8504 Series masthead and deck floodlight lamp assembly\u003c\/li\u003e\n\u003cli\u003e12V \/ 10W BAY15d bulb (masthead lamp)\u003c\/li\u003e\n\u003cli\u003e12V \/ 55W H3 bulb (deck floodlight)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hella Marine","offers":[{"title":"Black Housing","offer_id":52271050129589,"sku":"QBP437139-V1","price":171.5,"currency_code":"USD","in_stock":true},{"title":"White Housing","offer_id":52271050162357,"sku":"QBP437139-V2","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1306991_qbp437139.jpg?v=1771552636","url":"https:\/\/www.qualityboatparts.com\/products\/qbp437139","provider":"Quality Boat Parts","version":"1.0","type":"link"}