{"product_id":"acr-sm3-lifebuoy-marker-light-uscg-med-solas","title":"ACR SM-3 Self-Igniting Lifebuoy Marker Light — Auto Water-Activated, 360°, USCG\/MED\/SOLAS | ACR 3947","description":"\u003cp\u003eThe \u003cstrong\u003eACR SM-3 Self-Igniting Lifebuoy Marker Light 3947\u003c\/strong\u003e is a SOLAS-approved crew-overboard marker light designed for lifebuoys, commercial vessels, workboats, yachts, passenger vessels, and offshore safety stations. It uses a high-intensity LED strobe with \u003cstrong\u003e360° visibility for approximately 2 miles\u003c\/strong\u003e, automatically activates when deployed in the water, and floats upright to help mark a person-overboard location during recovery.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eACR part number 3947\u003c\/strong\u003e — SM-3 SOLAS lifebuoy marker light\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eUSCG, MED, and SOLAS approved\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eSelf-igniting design with automatic gravity-switch activation\u003c\/li\u003e\n\u003cli\u003eHigh-intensity LED strobe with \u003cstrong\u003eminimum 3 candela\u003c\/strong\u003e light intensity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e360° visibility\u003c\/strong\u003e for approximately \u003cstrong\u003e2 miles\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFlash rate: \u003cstrong\u003e50–70 flashes per minute\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFloats upright in all conditions\u003c\/li\u003e\n\u003cli\u003eOperating life: \u003cstrong\u003e40+ hours at 30°C \/ 86°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCold-temperature operating life: \u003cstrong\u003e24+ hours at -1°C \/ 30°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eUses \u003cstrong\u003e2 AA Energizer L91 lithium batteries\u003c\/strong\u003e, not included\u003c\/li\u003e\n\u003cli\u003eUser-replaceable batteries\u003c\/li\u003e\n\u003cli\u003eUV-resistant polycarbonate housing\u003c\/li\u003e\n\u003cli\u003eInternational safety orange body\u003c\/li\u003e\n\u003cli\u003eSize: \u003cstrong\u003e9.9\" length x 2.2\" diameter\u003c\/strong\u003e \/ \u003cstrong\u003e253 mm x 56 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: \u003cstrong\u003e0.66 lb \/ 300 g light only\u003c\/strong\u003e, \u003cstrong\u003e0.90 lb \/ 406 g with batteries and bracket\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes UV-resistant mounting bracket\u003c\/li\u003e\n\u003cli\u003eBracket uses the same mounting hole pattern as the previous SM-2 for easier retrofit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eIntended Use\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe SM-3 is intended for lifebuoy and crew-overboard marking applications on commercial marine vessels, passenger vessels, cargo ships, workboats, tugs, supply vessels, fishing vessels, yachts, and other boats requiring an approved self-igniting lifebuoy light. It is designed to be mounted with a lifebuoy station and deployed overboard in an emergency.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFitment Notice\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThis is a \u003cstrong\u003elifebuoy marker light\u003c\/strong\u003e, not a personal PFD light. Confirm your vessel’s required approval standard, carriage requirements, mounting location, and lifebuoy setup before installation. For vessels replacing an older ACR SM-2, the SM-3 bracket maintains the same mounting hole pattern for easier retrofit.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhen This Product Needs Replacement\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplace the light if the housing is cracked, the bracket is damaged, the strobe fails testing, the unit no longer activates reliably when inverted\/deployed, the battery compartment shows corrosion, or the product no longer meets the required vessel safety standard. Batteries should be replaced after emergency use, during scheduled safety checks, or before expiry.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eInstall the included bracket at the lifebuoy station where the light can deploy freely with the buoy. The SM-3 activates by gravity switch when thrown overboard or turned upright with the LED facing skyward. Install fresh \u003cstrong\u003eAA L91 lithium batteries\u003c\/strong\u003e, verify the battery compartment is sealed, and test operation as part of the vessel’s safety-equipment inspection routine.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAlternate\/Superseded Part Numbers\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eRelated ACR references include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3947\u003c\/strong\u003e — SM-3 Self-Igniting Lifebuoy Marker Light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSM-3\u003c\/strong\u003e — model reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSM-2\u003c\/strong\u003e — previous ACR lifebuoy marker light family referenced for retrofit mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eParts Desk Insight\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe SM-3 is built for lifebuoy stations, not wearable PFD use. The important checks are approval standard, bracket location, and whether the light will deploy cleanly with the buoy. The shared SM-2 mounting hole pattern is helpful when updating older vessel safety stations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Ships within 3 days for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"ACR Electronics","offers":[{"title":"Default Title","offer_id":42563114532900,"sku":"22388","price":333.27,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/9787e769-f03f-4e13-b0fc-615f9e64bff4.png?v=1778191228","url":"https:\/\/marisolmarine.com\/products\/acr-sm3-lifebuoy-marker-light-uscg-med-solas","provider":"Marisol Marine Company","version":"1.0","type":"link"}