{"product_id":"1500w-dc-dc-buck-converter-step-down-module-adjustable-voltage-current","title":"1500W DC-DC Buck Converter | 12–90V to 2.5–72V, 50A Adjustable","description":"\n\u003ch2\u003eGaqqee 1500W DC-DC Step-Down (Buck) Converter Module\u003c\/h2\u003e\n\u003cp\u003eTake precise control of your DC power supply with the Gaqqee 1500W Buck Converter Module. Whether you're powering motors, charging battery banks, running LED systems, or building custom electronics, this non-isolated step-down module delivers wide-range voltage and current adjustability with up to 97% conversion efficiency — all in a robust, CE \u0026amp; RoHS certified package.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Input\/Output Range:\u003c\/strong\u003e Accepts DC 12–90V input and delivers adjustable DC 2.5–72V output to accommodate a broad spectrum of applications and equipment requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Power Capacity:\u003c\/strong\u003e Supports up to 1500W maximum output power and up to 50A continuous output current (requires well-ventilated operating environment).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong-Handle Precision Potentiometers:\u003c\/strong\u003e Easily dial in your exact voltage and current settings by hand — no screwdrivers needed for quick, accurate adjustment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Constant Voltage \u0026amp; Constant Current (CV\/CC):\u003c\/strong\u003e Both output voltage (2.5–72V) and output current (1.5–50A) are independently configurable to suit varied application scenarios.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-Fitted Terminal Block Design:\u003c\/strong\u003e Supplied with terminal blocks for fast, secure wiring connections right out of the box.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExternal Meter Compatibility:\u003c\/strong\u003e Supports external voltmeters and ammeters for real-time output monitoring, giving you complete operational visibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eON\/OFF Switch Control:\u003c\/strong\u003e Built-in power switch for effortless output management without disconnecting wiring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermostatically Controlled Cooling Fan:\u003c\/strong\u003e Air-cooled fan activates automatically at approximately 50°C to maintain safe operating temperatures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShort-Circuit Protection:\u003c\/strong\u003e Constant current limiting provides short-circuit protection for connected loads.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Efficiency:\u003c\/strong\u003e Up to 97% conversion efficiency reduces heat and energy waste.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE \u0026amp; RoHS Certified:\u003c\/strong\u003e Meets EU safety and environmental compliance standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNon-isolated Buck Converter (BUCK)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 12–90V (for 12–15V input, short-circuit the 12–15V port)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 2.5–72V (adjustable; max output = input × 0.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 1.5–50A (continuously adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1500W (in well-ventilated environment)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConversion Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 97%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-10°C to +65°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAir-cooled (fan activates ~50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShort-Circuit Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes (constant current limiting)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReverse Polarity Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone — reverse connection strictly prohibited\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Over\/Under-Voltage Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone — do not exceed rated input voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Reverse Current Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone — add a reverse protection diode when charging batteries or driving inductive loads (e.g., motors)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGaqqee\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 1500W DC-DC Step-Down Power Module (Gaqqee)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Safety Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThis is a non-isolated buck converter — output voltage is always lower than input voltage.\u003c\/li\u003e\n  \u003cli\u003eDo NOT reverse polarity on the input — there is no reverse polarity protection.\u003c\/li\u003e\n  \u003cli\u003eDo NOT exceed rated input voltage (90V DC max).\u003c\/li\u003e\n  \u003cli\u003eAlways operate in a well-ventilated environment at full power loads.\u003c\/li\u003e\n  \u003cli\u003eWhen connecting to batteries or inductive loads, always add an external reverse protection diode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cp\u003eLooking for more electronics and tools? Browse these related products in our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/ancient-nutrition-multi-collagen-advanced-muscle-60-capsules\"\u003eAncient Nutrition Multi Collagen Advanced Muscle 60 Capsules\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/bu-sinking-minnow-lure-29mm-2-8g-bass-pike-trout-wobbler\"\u003eB\u0026amp;U Sinking Minnow Lure 29mm 2.8g – Bass Pike Trout Wobbler\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the maximum output voltage of this 1500W buck converter module?\u003c\/h4\u003e\n\u003cp\u003eA: The maximum output voltage is 72V DC, achievable when the input is 90V DC. The formula is: Input Voltage × 0.8 = Maximum Output Voltage. For example, with a 40V input, the maximum output is 32V. The minimum adjustable output voltage is 2.5V.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this DC-DC step-down module have reverse polarity protection?\u003c\/h4\u003e\n\u003cp\u003eA: No. This module does not include reverse polarity, over-voltage, or under-voltage protection. You must ensure correct polarity is maintained at all times. When driving inductive loads (such as motors) or charging batteries, an external reverse protection diode must be added to prevent damage.\u003c\/p\u003e\n\u003ch4\u003eQ: How does the cooling system work on this buck converter module?\u003c\/h4\u003e\n\u003cp\u003eA: The module uses an air-cooled thermostatically controlled fan that activates automatically when the module temperature reaches approximately 50°C. For maximum output power operation (up to 1500W), the surrounding environment must be well-ventilated to maintain safe operating temperatures between -10°C and +65°C.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use this module to charge lithium or lead-acid battery banks?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, this adjustable CV\/CC (constant voltage \/ constant current) buck converter is well-suited for battery charging applications. However, because the module has no output reverse current protection, you must install an external reverse protection diode between the module output and the battery to prevent back-current damage to the module.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the maximum output voltage of this 1500W buck converter module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The maximum output voltage is 72V DC, achievable when the input is 90V DC. The formula is: Input Voltage × 0.8 = Maximum Output Voltage. For example, with a 40V input, the maximum output is 32V. 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