{"product_id":"waterproof-20w-12v-polycrystalline-solar-panel-with-2m-cable-4boats","title":"Waterproof 20W 12V Polycrystalline Solar Panel with 2m Cable | 4Boats","description":"\u003cp\u003eThis waterproof, high-efficiency 20W polycrystalline solar panel supplies free power for permanent outdoor use — ideal for boats, campervans, sheds and other 12 V systems.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePeak power: 20W\u003c\/li\u003e\n\u003cli\u003eMaximum power voltage (Vmp): 17.5 V; Maximum power current (Imp): 1.14 A\u003c\/li\u003e\n\u003cli\u003eOpen circuit voltage (Voc): 21.6 V; Short circuit current (Isc): 1.23 A\u003c\/li\u003e\n\u003cli\u003ePower tolerance: +\/- 3%\u003c\/li\u003e\n\u003cli\u003eDimensions: 485 x 345 x 25 mm (19.1 x 13.6 x 1.0 in); Weight: 2.0 kg (4.4 lb)\u003c\/li\u003e\n\u003cli\u003e4 mounting holes; junction box extends ~0.5 cm beyond frame — leave 1.0–1.5 cm space under the panel for cooling\u003c\/li\u003e\n\u003cli\u003e2 m cable attached (approx. 6.6 ft); sealed, waterproof junction box and aluminium frame for outdoor use\u003c\/li\u003e\n\u003cli\u003eRequires a solar charge controller\/regulator to charge a 12 V battery. To upgrade to 40W, add a second 20W panel in parallel: connect \"+\" to \"+\" and \"-\" to \"-\" then to the solar controller\u003c\/li\u003e\n\u003cli\u003e1 year workmanship warranty; solar cells guaranteed ≥90% output at 10 years and ≥80% at 25 years (manufacturer)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNo installation manual is supplied — the panel must be connected to a suitable solar charge controller\/regulator to charge a 12 V battery. If you need AC output via an inverter, the correct system sequence is: panel -\u0026gt; controller -\u0026gt; battery -\u0026gt; inverter; do not connect the panel directly to an inverter. Use corrosion-resistant fittings for marine\/RV installations and choose an appropriate MPPT or PWM controller sized for the panel.\u003c\/p\u003e","brand":"4Boats","offers":[{"title":"Default Title","offer_id":44904789246152,"sku":"BST-20P","price":51.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0116\/4351\/9038\/files\/20w-12v-polycrystalline-solar-panel-with-2m-cable-4boats-1.jpg?v=1768727219","url":"https:\/\/www.moonglowattractors.co.uk\/products\/waterproof-20w-12v-polycrystalline-solar-panel-with-2m-cable-4boats","provider":"Moonglow fishing                                                  ","version":"1.0","type":"link"}