{"product_id":"300w-12v-fixed-solar-panel","title":"300W 12V Monocrystalline StarPower Solar Panel","description":"\u003ch2\u003e300W 12V Monocrystalline Fixed Solar Panel\u003c\/h2\u003e \u003cp\u003eThis StarPower \u003cstrong\u003e300W 12V monocrystalline fixed solar panel\u003c\/strong\u003e is a compact framed option for compatible caravan, RV, 4WD, shed, cabin and off-grid battery-charging systems.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCheck before ordering:\u003c\/strong\u003e the panel measures 930 × 540 × 50mm and weighs approximately 9.5kg. Confirm the mounting area, structural support and controller capacity for 21.4V open-circuit voltage and 18.27A short-circuit current.\u003c\/p\u003e \u003cp\u003eCompare alternative constructions and sizes in StarPower’s main \u003ca href=\"\/collections\/300w-solar-panel-for-caravan-australia\"\u003e300W solar panel range\u003c\/a\u003e.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e300W rated peak power under standard test conditions\u003c\/li\u003e \u003cli\u003eMonocrystalline solar cells\u003c\/li\u003e \u003cli\u003eRigid aluminium frame and tempered-glass front\u003c\/li\u003e \u003cli\u003eCompact footprint for suitable mobile and off-grid installations\u003c\/li\u003e \u003cli\u003eCompatible with lithium LiFePO4, AGM and deep-cycle battery charging when used with the correct controller\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eRated Power:\u003c\/strong\u003e 300W\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003ePower Tolerance:\u003c\/strong\u003e ±3%\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eMaximum Power Voltage (Vmp):\u003c\/strong\u003e 17.4V\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eMaximum Power Current (Imp):\u003c\/strong\u003e 17.24A\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eOpen Circuit Voltage (Voc):\u003c\/strong\u003e 21.4V\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eShort-Circuit Current (Isc):\u003c\/strong\u003e 18.27A\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eMaximum System Voltage:\u003c\/strong\u003e 1000V\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eCell Technology:\u003c\/strong\u003e Monocrystalline\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eModule Class:\u003c\/strong\u003e Class A\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -40°C to 85°C\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eCertification:\u003c\/strong\u003e TÜV listed in the product specifications\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003ePerformance Warranty:\u003c\/strong\u003e 25 years\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eDimensions:\u003c\/strong\u003e 930 × 540 × 50mm\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWeight:\u003c\/strong\u003e approximately 9.5kg\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eModel:\u003c\/strong\u003e SPAST-300WMS\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eSuitable Applications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eCaravan and RV roof systems with suitable mounting support\u003c\/li\u003e \u003cli\u003e4WD canopies and camper trailers\u003c\/li\u003e \u003cli\u003eSheds, cabins and remote 12V battery systems\u003c\/li\u003e \u003cli\u003eGround-mounted off-grid arrays\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eController and Battery Compatibility\u003c\/h3\u003e \u003cp\u003eUse a controller, DC-DC charger with solar input, or compatible hybrid inverter that can safely accept the panel’s voltage and current. The charging profile must suit the battery chemistry. Compare \u003ca href=\"\/collections\/mppt-solar-charge-controllers\"\u003eMPPT solar charge controllers\u003c\/a\u003e and \u003ca href=\"\/collections\/lithium-batteries\"\u003elithium batteries\u003c\/a\u003e.\u003c\/p\u003e \u003cp\u003eFor multiple panels, recalculate the complete array: series wiring increases voltage and parallel wiring increases current. Use appropriately rated solar cable, connectors, fuses and isolation equipment.\u003c\/p\u003e \u003ch3\u003eWhat’s Included\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e1 × 300W 12V monocrystalline fixed solar panel\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eMounting hardware, extension leads, controller, fuses, isolators and battery are not included unless stated separately in the offer.\u003c\/p\u003e \u003ch3\u003eInstallation Notes\u003c\/h3\u003e \u003cp\u003eProvide secure structural support and follow the mounting instructions. Plan for cable routing, waterproof entries, service access and airflow around the panel. Vehicle, marine and permanent electrical work should be completed by a suitably qualified installer where required.\u003c\/p\u003e \u003ch3\u003eReal-World Output\u003c\/h3\u003e \u003cp\u003eThe 300W rating is measured under standard test conditions. Actual output varies with sunlight, panel temperature, shade, angle, cleanliness, cable losses and controller efficiency.\u003c\/p\u003e \u003ch2\u003eFAQs\u003c\/h2\u003e \u003ch3\u003eCan this panel charge a lithium battery?\u003c\/h3\u003e \u003cp\u003eYes, when connected through a compatible controller with the correct lithium charging profile and sufficient PV input capacity.\u003c\/p\u003e \u003ch3\u003eIs 300W enough for a caravan fridge?\u003c\/h3\u003e \u003cp\u003eIt depends on the fridge’s daily energy use, battery capacity, other loads, location and season. Size the complete system from measured or manufacturer-stated watt-hours rather than panel wattage alone.\u003c\/p\u003e \u003ch3\u003eIs a controller included?\u003c\/h3\u003e \u003cp\u003eNo controller is listed as included with this panel. Select a compatible controller separately if your system does not already have one.\u003c\/p\u003e","brand":"StarPower Solar","offers":[{"title":"Default Title","offer_id":55051995382099,"sku":"334338096797","price":75.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1076\/9324\/4755\/files\/7SFJZR3VZKHXORYGUA3MB3X5_8b555b1a-ecc5-4dbc-877c-1cad8cfe7436.png?v=1790284096","url":"https:\/\/progradewarehouse.com\/products\/300w-12v-fixed-solar-panel","provider":"PRO GRADE WAREHOUSE","version":"1.0","type":"link"}