{"product_id":"siaecosys-60v-72v-to-12v-10a-dc-dc-converter-with-5v-1a-output-and-built-in-wire","title":"SiAECOSYS 60V–72V to 12V 10A DC-DC Step-Down Voltage Converter (Optional 5V 1A USB Output)","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #202223; line-height: 1.6; max-width: 100%;\"\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 20px;\"\u003e\n    Safely power your vehicle lighting, horn, and electronic accessories directly from your high-voltage traction battery with the genuine \u003cstrong\u003eSiAECOSYS 60V\/72V to 12V 10A DC-DC Step-Down Voltage Converter\u003c\/strong\u003e. Built specifically for high-performance electric motorcycles, e-scooters, e-bikes, and light electric vehicles (LEVs), this heavy-duty buck converter steps down raw pack voltage into a clean, regulated \u003cstrong\u003e12V 10A (120W) output\u003c\/strong\u003e without draining or unbalancing individual battery cells.\n  \u003c\/p\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 20px;\"\u003e\n    Constructed in a heavy-duty extruded aluminum alloy shell for superior passive heat dissipation, the converter features advanced solid-state circuitry with built-in protection against short circuits, over-current, over-voltage, and thermal overloads. Available in three configurations, including options with an integrated \u003cstrong\u003e5V 1A output line\u003c\/strong\u003e and a \u003cstrong\u003ededicated USB phone charging cable\u003c\/strong\u003e.\n  \u003c\/p\u003e\n\n  \u003cp style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S86eeaf0304e541f6a57fae1336f289797.jpg\" alt=\"SiAECOSYS 60V 72V to 12V 10A DC-DC Voltage Converter\" style=\"max-width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eKey Features \u0026amp; Electrical Advantages\u003c\/h2\u003e\n  \u003cul style=\"padding-left: 20px; margin-bottom: 24px;\"\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eStable 12V 10A Power Delivery:\u003c\/strong\u003e Provides up to 120W of continuous 12V power, effortlessly driving high-power LED projector headlights, turn indicators, horns, brake lights, audio systems, and GPS trackers.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eWide High-Voltage Compatibility:\u003c\/strong\u003e Engineered natively for 60V and 72V battery packs (handles operational inputs across 48V–84V DC), preventing voltage sags or spikes from damaging sensitive 12V accessories.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eOptional 5V 1A Output \u0026amp; USB Charging:\u003c\/strong\u003e Selected packages include a regulated 5V 1A secondary output wire and a weatherproof USB port to keep smartphones, cameras, and navigation units charged while riding.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eHeavy-Duty Extruded Aluminum Housing:\u003c\/strong\u003e Acts as an efficient passive heat sink, maintaining cool operating temperatures even under sustained high-amperage loads.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eComprehensive Circuit Protection:\u003c\/strong\u003e Multi-layer defense includes output short-circuit protection, reverse-polarity protection, over-current limiting, and thermal shutdown.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eCompact \u0026amp; Secure Mounting:\u003c\/strong\u003e Slotted mounting tabs allow simple, vibration-resistant installation inside scooter decks, motorcycle battery trays, or chassis compartments.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eAvailable Package Configurations\u003c\/h2\u003e\n  \u003cul style=\"padding-left: 20px; margin-bottom: 24px;\"\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eCombo 1 (without 5V):\u003c\/strong\u003e 1× SiAECOSYS 60V\/72V to 12V 10A DC-DC Step-Down Converter with standard 3-wire harness (Input +, Output +, Common Ground).\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eCombo 2 (With 5V):\u003c\/strong\u003e 1× SiAECOSYS 60V\/72V to 12V 10A DC-DC Step-Down Converter equipped with an auxiliary 5V 1A output wire.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eCombo 3 (With 5V and USB):\u003c\/strong\u003e 1× SiAECOSYS 60V\/72V to 12V 10A DC-DC Step-Down Converter + 1× Auxiliary 5V 1A Output Line + 1× USB Charging Cable + 1× DJ7041Y-6.3-21 automotive plug-in connector harness.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eTechnical Specifications Matrix\u003c\/h2\u003e\n  \u003cdiv style=\"overflow-x: auto; margin-bottom: 24px;\"\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; text-align: left; font-size: 14px; border: 1px solid #e1e3e5;\"\u003e\n      \u003ctbody\u003e\n        \u003ctr style=\"background-color: #f7f8f9;\"\u003e\n          \u003cth style=\"padding: 10px 14px; border: 1px solid #e1e3e5; width: 35%;\"\u003eParameter\u003c\/th\u003e\n          \u003cth style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eSpecification\u003c\/th\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eBrand \/ Manufacturer\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eSiAECOSYS Genuine\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eProduct Type\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eStep-Down (Buck) DC-DC Converter\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eNominal Input Voltage\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e60V \/ 72V DC (Wide input range: 48V–84V DC)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003ePrimary Output Voltage\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e12V DC ±2%\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003ePrimary Output Current \/ Power\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e10A Continuous (120W Max Output)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eAuxiliary Output (Combos 2 \u0026amp; 3)\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e5V DC, 1A (Integrated wire lead \/ USB port)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eHousing Material\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eHeavy-Duty Cast Aluminum Alloy Heatsink\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eHarness Lead Length\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e75mm ± 5mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eLead Wire Gauge\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e0.3 mm² High-Flex Copper Wiring\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eConnector Model (Combo 3)\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eDJ7041Y-6.3-21 Multi-Pin Automotive Plug\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cp style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S9428e06ead0f481490152eb745bfccdee.jpg\" alt=\"SiAECOSYS DC-DC Converter Dimensions and Mounting Specs\" style=\"max-width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eWiring \u0026amp; Connection Pinout Schematic\u003c\/h2\u003e\n  \u003cp style=\"font-size: 14px; color: #333; margin-bottom: 16px;\"\u003e\n    The converter is engineered for straightforward in-line integration with your vehicle's main power switch (electric door lock \/ ignition switch) and existing 12V accessory harness:\n  \u003c\/p\u003e\n  \u003cul style=\"padding-left: 20px; margin-bottom: 20px; font-size: 14px;\"\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eHigh-Voltage Input (+):\u003c\/strong\u003e Connects to battery positive via the electric lock \/ ignition line.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eCommon Ground (-):\u003c\/strong\u003e Connects to the main battery negative ground return.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003e12V Regulated Output (+):\u003c\/strong\u003e Supplies positive 12V DC power to your light switch, horn relay, and accessory bus.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003e5V Auxiliary Lead \/ USB (+):\u003c\/strong\u003e Supplies 5V DC power for mobile devices and USB charging accessories.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Se15954120fc84d049c73aff214528f8b1.jpg\" alt=\"SiAECOSYS 60V 72V to 12V Converter Detailed Wiring Diagram\" style=\"max-width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eUSB Cable \u0026amp; Automotive Connector Hardware\u003c\/h2\u003e\n  \u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; margin: 24px 0;\"\u003e\n    \u003cdiv style=\"flex: 1 1 calc(50% - 16px); max-width: calc(50% - 16px); min-width: 260px;\"\u003e\n      \u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3ea514a9b65b4e979996a0129e221ec00.jpg\" alt=\"SiAECOSYS USB Cable and Harness Connector\" style=\"width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex: 1 1 calc(50% - 16px); max-width: calc(50% - 16px); min-width: 260px;\"\u003e\n      \u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sf8969abecddc4f7d981f40f1f4b80e3cK.jpg\" alt=\"SiAECOSYS Weatherproof USB Phone Charging Port\" style=\"width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n  \u003cdiv style=\"margin-bottom: 24px;\"\u003e\n    \u003cp style=\"font-weight: 700; margin-bottom: 4px; color: #111;\"\u003eQ: Why should I use a DC-DC converter instead of tapping a single 12V section of my battery pack?\u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 16px; color: #333;\"\u003eA: Tapping into part of a 60V or 72V lithium pack causes severe cell imbalance, uneven discharge rates, and will trigger early BMS low-voltage cutoffs. A dedicated DC-DC converter draws current evenly from the entire pack, ensuring full battery cycle life and maximum pack health.\u003c\/p\u003e\n\n    \u003cp style=\"font-weight: 700; margin-bottom: 4px; color: #111;\"\u003eQ: Can I run multiple 12V lights and a horn at the same time on this 10A converter?\u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 16px; color: #333;\"\u003eA: Yes. With 10A continuous output (120 Watts), this unit has abundant capacity to run twin LED headlights (typically 15W–30W each), taillights\/turn signals (5W–10W), and an electric motorcycle horn (30W intermittent) simultaneously without voltage sag.\u003c\/p\u003e\n\n    \u003cp style=\"font-weight: 700; margin-bottom: 4px; color: #111;\"\u003eQ: What is the benefit of choosing Combo 3?\u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 16px; color: #333;\"\u003eA: Combo 3 provides both the 5V auxiliary output line and a dedicated USB charging port cable, as well as the DJ7041Y-6.3-21 automotive mating plug for clean, modular, and weatherproof installation on handlebars or fairings.\u003c\/p\u003e\n\n    \u003cp style=\"font-weight: 700; margin-bottom: 4px; color: #111;\"\u003eQ: Is this converter waterproof?\u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 16px; color: #333;\"\u003eA: The heavy-duty aluminum shell and silicone potted interior protect against splash, spray, and road grime. For optimal longevity, it is recommended to mount the unit inside the chassis, frame channel, or headlight cowl away from direct wheel spray.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eInternational Shipping \u0026amp; Logistics Notice\u003c\/h2\u003e\n  \u003cdiv style=\"background-color: #f9fafb; border: 1px solid #e1e3e5; border-radius: 8px; padding: 18px; margin-bottom: 20px;\"\u003e\n    \u003cp style=\"margin-bottom: 10px; font-size: 14px; color: #444;\"\u003e\n      \u003cstrong\u003eFree Worldwide Tracked Shipping:\u003c\/strong\u003e Every converter is inspected, padded, and dispatched with an international tracking number so you can follow transit progress directly to your door.\n    \u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 10px; font-size: 14px; color: #444;\"\u003e\n      \u003cstrong\u003eCustoms \u0026amp; Import Duties:\u003c\/strong\u003e Standard international trade terms apply. Depending on destination customs laws, any applicable local taxes or duties are the responsibility of the purchaser.\n    \u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 0; font-size: 14px; color: #444;\"\u003e\n      \u003cstrong\u003eAccurate Delivery Address:\u003c\/strong\u003e Please ensure your street address, zip code, and contact mobile number are fully up-to-date at checkout to ensure seamless courier dispatch.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Quanshun","offers":[{"title":"without 5V","offer_id":67801328386262,"sku":"1005009213276448-without 5V","price":32.0,"currency_code":"USD","in_stock":true},{"title":"With 5V and USB","offer_id":67801328419030,"sku":"1005009213276448-With 5V and USB","price":36.0,"currency_code":"USD","in_stock":true},{"title":"With 5V","offer_id":67801328451798,"sku":"1005009213276448-With 5V","price":33.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0252\/5878\/6893\/files\/Sc4c3bfd18de143f884d8bae68aaa1463B.webp?v=1793109731","url":"https:\/\/e-smartway.com\/products\/siaecosys-60v-72v-to-12v-10a-dc-dc-converter-with-5v-1a-output-and-built-in-wire","provider":"E Smart Way ","version":"1.0","type":"link"}