{"product_id":"dc-0-30v-hydro-generator-emergency-power-supply-95-efficiency","title":"DC 0-30V Hydro Generator | 95% Efficiency | Emergency Power","description":"\n\u003ch2\u003eDC 0–30V Hydro \u0026amp; Hand-Crank Generator — 95% Conversion Efficiency\u003c\/h2\u003e\n\u003cp\u003eWhether you need a compact emergency power source, a hands-on teaching tool, or a backup charging solution, this versatile DC generator delivers impressive performance in a small, easy-to-install package. Harnessing water flow or manual hand rotation, it converts mechanical energy into usable DC electricity with up to \u003cstrong\u003e95% conversion efficiency\u003c\/strong\u003e — one of the highest ratings available in its class.\u003c\/p\u003e\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e95% Conversion Efficiency\u003c\/strong\u003e — Maximizes every bit of mechanical input into clean DC output.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Output Range (DC 0–30V)\u003c\/strong\u003e — Variable voltage output scales with rotation speed; add a voltage regulator circuit for fixed-voltage applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Peak Output\u003c\/strong\u003e — Peak output current exceeding 1,500 mA and peak load power up to 20W.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-Mode Operation\u003c\/strong\u003e — Works as a hydroelectric pipeline generator (water-powered) or a hand-crank\/wind generator.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction\u003c\/strong\u003e — Built from high-quality materials designed for a long working life and reliable, stable performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Self-Contained\u003c\/strong\u003e — Small form factor makes installation straightforward in pipelines, educational rigs, or field setups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use Cases\u003c\/strong\u003e — Ideal for backup lighting, device charging, electronics testing, classroom demonstrations, and hydraulic energy experiments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 0–30V (unregulated; varies with rotation speed)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePeak Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 1,500 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePeak Load Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20W\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 95%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelf-contained\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLow voltage: Below 50V AC or 75V DC\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× DC 0–30V Hydro \/ Hand-Crank Generator\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Actual color may vary slightly from product images due to screen display differences. Please allow ±1–10 mm in measurements due to manual measurement tolerances. A voltage regulator circuit (not included) is recommended if a fixed output voltage is required.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eFor more information on small-scale hydroelectric and micro-generation technologies, visit the \u003ca href=\"https:\/\/www.energy.gov\/eere\/water\/hydropower-basics\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eU.S. Department of Energy — Hydropower Basics\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the output voltage range of this hydro generator?\u003c\/h4\u003e\n\u003cp\u003eA: The generator produces an unregulated DC output ranging from 0 to 30V. The actual voltage depends on the rotation speed — faster water flow or hand-crank speed produces higher voltage. If you need a stable, fixed voltage, we recommend adding a voltage regulator circuit to the output.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this generator be used as an emergency power supply for charging devices?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This generator is well-suited as a backup or emergency power supply. With a peak output current exceeding 1,500 mA and a peak load power of 20W, it can power backup lighting, charge small electronics, or run low-power devices — especially when paired with an appropriate voltage regulator and charge controller.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this generator suitable for educational or teaching purposes?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. Its dual-mode operation (water-powered pipeline and hand-crank) makes it an excellent hands-on demonstration tool for classrooms and science projects, illustrating the principles of electromagnetic induction, hydroelectric generation, and energy conversion at up to 95% efficiency.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the package include a voltage regulator circuit?\u003c\/h4\u003e\n\u003cp\u003eA: No, the package includes only 1× generator unit. A voltage regulator circuit is not included but can be purchased separately if a fixed output voltage is needed for your specific application.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the output voltage range of this hydro generator?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The generator produces an unregulated DC output ranging from 0 to 30V. The actual voltage depends on the rotation speed — faster water flow or hand-crank speed produces higher voltage. If you need a stable, fixed voltage, we recommend adding a voltage regulator circuit to the output.\"}}, {\"@type\": \"Question\", \"name\": \"Can this generator be used as an emergency power supply for charging devices?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! This generator is well-suited as a backup or emergency power supply. With a peak output current exceeding 1,500 mA and a peak load power of 20W, it can power backup lighting, charge small electronics, or run low-power devices — especially when paired with an appropriate voltage regulator and charge controller.\"}}, {\"@type\": \"Question\", \"name\": \"Is this generator suitable for educational or teaching purposes?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. Its dual-mode operation (water-powered pipeline and hand-crank) makes it an excellent hands-on demonstration tool for classrooms and science projects, illustrating the principles of electromagnetic induction, hydroelectric generation, and energy conversion at up to 95% efficiency.\"}}, {\"@type\": \"Question\", \"name\": \"Does the package include a voltage regulator circuit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No, the package includes only 1× generator unit. A voltage regulator circuit is not included but can be purchased separately if a fixed output voltage is needed for your specific application.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Electronics \u0026 Tech\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/collections\/electronics-tech\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"DC 0-30V Hydro Generator | 95% Efficiency | Emergency Power\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/products\/dc-0-30v-hydro-generator-emergency-power-supply-95-efficiency\"}]}\u003c\/script\u003e","brand":"Vue","offers":[{"title":"Motor","offer_id":48749478052032,"sku":"249:201454598#Motor","price":75.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9338\/7968\/files\/S0a0b1be685dc4423ae1077e24aaf3a5cx.webp?v=1786207006","url":"https:\/\/vueselect.com\/products\/dc-0-30v-hydro-generator-emergency-power-supply-95-efficiency","provider":"Vue","version":"1.0","type":"link"}