{"product_id":"135w-walkable-semi-rigid-solar-panel-27-4-back-contact","title":"135 Watt Walkable Semi Rigid Solar Panel with Polycarbonate \u0026 J-Mount Brackets - New Generation Back Contact Cell A+ Grade 27.4% Efficient Cells","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGenerate more solar power while keeping valuable deck and roof space usable.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdd reliable solar capacity to your boat, van, RV, or other space-constrained installation with the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCMPower 135 Watt Walkable Semi-Rigid Solar Panel\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Featuring advanced \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e27.4% efficient All-Back Contact (ABC) solar cells\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this panel delivers high power output in a compact, walkable design built for demanding marine and mobile applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith a compact \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e21.3 × 42.3 inch (540 × 1075 mm)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e footprint, the CMPower 135W panel helps maximize solar generation where available surface area is limited. \u003c\/span\u003e\u003cspan\u003eDelivering \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e135 watts of rated power\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this panel is ideal for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eboat decks, yachts, sailboats, RV roofs, van conversions, and other installations where solar performance and usable surface space must work together\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e135W maximum solar output\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e27.4% high-efficiency Back Contact solar cells\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eNew-generation \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAll-Back Contact (ABC) solar technology\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWalkable semi-rigid solar panel construction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCompact \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e21.3 × 42.3 inch footprint\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSlim \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5 mm panel thickness\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnhanced partial shade performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eExcellent high-temperature performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e-0.26%\/°C Pmax temperature coefficient\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eClean all-black, grid-free appearance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTransparent twin-wall polycarbonate backing included\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eJ-channel mounting brackets included\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned for boats, RVs, vans, and space-constrained installations\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"auto\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cspan role=\"text\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePV solar panel module\u003c\/li\u003e\n\u003cli\u003eSheet of twin wall polycarbonate backing\u003c\/li\u003e\n\u003cli\u003eTwo J channel mounting extrusions\u003c\/li\u003e\n\u003cli\u003eOwner’s Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 147, 205);\"\u003e\u003cstrong\u003e27.4% High-Efficiency All-Back Contact Solar Cells\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe CMPower 135W uses new-generation \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAll-Back Contact (ABC) solar cell technology with 27.4% cell efficiency\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Unlike traditional solar cells with electrical contacts on the front surface, ABC technology places the positive and negative electrical contacts on the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003erear side of the cell\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis design maximizes the front surface area available for sunlight absorption, helping produce higher power output from a compact panel footprint while maintaining a clean, premium all-black appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefits include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e27.4% high-efficiency solar cells\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncreased usable sunlight absorption area\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSleek, grid-free black appearance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigher power output from limited installation space\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 147, 205);\"\u003e\u003cstrong\u003eWalkable Semi-Rigid Construction\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for installations where solar panels must coexist with usable deck or roof space, the CMPower 135W combines a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003esemi-rigid walkable construction\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e with a supportive polycarbonate backing system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe included twin-wall polycarbonate backing helps provide structural support while creating airflow beneath the panel to reduce heat buildup and protect the mounting surface. \u003c\/span\u003e\u003cspan\u003eThe J-channel mounting system provides a clean and secure installation solution while maintaining the panel’s low-profile design.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eWalkable semi-rigid design\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupportive twin-wall polycarbonate backing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eJ-channel mounting system included\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSlim \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5 mm thickness\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMaximum bend specification of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10°\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 147, 205);\"\u003e\u003cstrong\u003eEnhanced Performance Under Partial Shade\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMarine and mobile solar installations often experience changing sunlight conditions caused by:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBoat masts and rigging\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRadar equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAntennas\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRoof vents\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAir conditioners\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRoof racks\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe CMPower 135W features an advanced cell and electrical design that improves performance under partial shading conditions, helping the panel continue producing useful solar power when complete sunlight exposure is not available.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 147, 205);\"\u003e\u003cstrong\u003eExcellent High-Temperature Performance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSolar panels installed on boat decks, RV roofs, and vehicle surfaces can experience high operating temperatures. The CMPower 135W is designed with an excellent temperature coefficient to help reduce output losses during hot conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe panel features a: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ePmax Temperature Coefficient: -0.26%\/°C \u003cbr\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003eThis means the panel experiences reduced power loss as temperatures increase compared with panels with higher temperature sensitivity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 147, 205);\"\u003e\u003cstrong\u003eClean All-Black Design\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe CMPower 135W features a seamless all-black appearance without traditional visible front-side electrical grid lines.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 147, 205);\"\u003e\u003cstrong\u003eDesigned for Marine \u0026amp; RV Applications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe combination of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e135W output, walkable semi-rigid construction, compact dimensions, and included mounting components\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e makes this panel ideal for installations where traditional framed solar panels are too bulky or consume valuable usable space.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRecommended applications:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBoat decks and marine surfaces\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eYachts and sailboats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRV roofs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCamper vans\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVan conversions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRoof racks\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpace-limited solar arrays\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWalkable solar installations\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe manufacturer specifically identifies this series as suitable for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eboat decks, RV and van roofs, and applications where durable walkable solar helps maximize usable space\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 147, 205);\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; height: 313.501px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth colspan=\"2\" style=\"width: 99.7072%; height: 19.5938px;\"\u003e135 Watt Walkable Semi-Rigid Solar Panel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 19.5938px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 19.5938px;\"\u003e\u003cstrong\u003eCMP24120SRB-135-STP\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 19.5938px;\"\u003e\u003cstrong\u003eRated Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 19.5938px;\"\u003e\n\u003cspan\u003e\u003c\/span\u003e135 Watts\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 19.5938px;\"\u003e\u003cstrong\u003ePeak Power Voltage (Vmpp)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 19.5938px;\"\u003e\u003cspan\u003e41.6 Volts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 19.5938px;\"\u003e\u003cstrong\u003ePeak Power Amps (Impp)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 19.5938px;\"\u003e3.2 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 19.5938px;\"\u003e\u003cstrong\u003eOpen Circuit Voltage (Voc)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 19.5938px;\"\u003e48.6 Volts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 19.5938px;\"\u003e\u003cstrong\u003eShort Circuit Current (Isc)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 19.5938px;\"\u003e3.4 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 19.5938px;\"\u003e\u003cstrong\u003eCell Conversion Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 19.5938px;\"\u003e27.4%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 19.5938px;\"\u003e\u003cstrong\u003eSolar Cell Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 19.5938px;\"\u003e\u003cspan\u003eBack Contact Cells\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 19.5938px;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 19.5938px;\"\u003e\u003cspan\u003e21.26\" x 42.3\", 540 x 1075 x 5 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 19.5938px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 19.5938px;\"\u003e\n\u003cspan\u003e\u003c\/span\u003e8.38 lbs, 3.8 kgs\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 19.5938px;\"\u003e\u003cstrong\u003eBackground Color\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 19.5938px;\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 19.5938px;\"\u003e\u003cstrong\u003eCell Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 19.5938px;\"\u003e\u003cspan\u003e170*47 \/ 3x22\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 39.1875px;\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 39.1875px;\"\u003e\u003cspan\u003e\u003cspan class=\"a_GcMg font-feature-liga-off font-feature-clig-off font-feature-calt-off text-decoration-none text-strikethrough-none\"\u003eTwin-wall polycarbonate backing and J-channels\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.0483%; height: 19.5938px;\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eDocumentation\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 50.6589%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/8466\/2328\/files\/CMP24120SRB-135-STP_Datasheet.pdf?v=1790394076\" title=\"CMP24120SRB-135-STP 135 Watt Walkable Back Contact Solar Panels 27.4% efficient cells - datasheet\" rel=\"noopener\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/8466\/2328\/files\/CMP24100SRB-110-STP_Datasheet.pdf?v=1790236287\" title=\"CMP24100SRB-110-STP 110 Watt Walkable Back Contact Solar Panels 27.4% efficient cells - Datasheet\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/8466\/2328\/files\/CMP24065SRB-75-STP_Datasheet.pdf?v=1790163531\" title=\"CMP24065SRB-75-STP 75 Watt Walkable Back Contact Solar Panels 27.4% efficient cells - Datasheet\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Custom Marine Products","offers":[{"title":"Default Title","offer_id":53029841174840,"sku":"CMP24120SRB-135-STP","price":659.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/8466\/2328\/files\/CMP24120SRB-135-STP_135_Watt_Walkable_Back_Contact_Solar_Panels_27.4_efficient_cells_-_index.jpg?v=1790394144","url":"https:\/\/www.custommarineproducts.store\/products\/135w-walkable-semi-rigid-solar-panel-27-4-back-contact","provider":"Custom Marine Products","version":"1.0","type":"link"}