--- product_id: 657480866 title: "MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy" brand: "marbero" price: "HK$527" currency: HKD in_stock: true category: "Marbero" url: https://www.desertcart.hk/products/657480866-marbero-21w-portable-solar-panel-foldable-solar-panel-charger-ip65 store_origin: HK region: Hong Kong --- # IP68 waterproof & dustproof durability 10 versatile connectors included 100W peak power output MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy **Brand:** marbero **Price:** HK$527 **Availability:** ✅ In Stock ## Summary > ⚡ Charge your freedom—wherever the sun takes you! ## Quick Answers - **What is this?** MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy by marbero - **How much does it cost?** HK$527 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/657480866-marbero-21w-portable-solar-panel-foldable-solar-panel-charger-ip65) ## Best For - marbero enthusiasts ## Why This Product - Trusted marbero brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rugged & Weatherproof:** ETFE-coated, IP68-rated panel withstands rain, dust & rough outdoor conditions for dependable use. - • **Smart & Safe Charging:** 23%+ efficiency monocrystalline cells with advanced IC tech protect devices from overcharge & surges. - • **Universal Compatibility:** 10-in-1 adapter kit powers 90% of solar generators including Jackery, EcoFlow & BLUETTI. - • **Ultra-Portable Adventure Ready:** Folds compactly to 23x19.7'' and weighs just 8.4 lbs with adjustable kickstands for max sun capture. - • **Power Up Anywhere, Rain or Shine:** Delivers 80-100W in sun & 65-70W on cloudy days for reliable off-grid energy. ## Overview The MARBERO 100W Portable Solar Panel is a foldable, high-efficiency solar charger designed for outdoor enthusiasts and professionals. Featuring premium monocrystalline silicon cells with over 23% energy conversion, it reliably outputs up to 100W in direct sunlight and maintains strong performance on cloudy days. Its IP68 waterproof and dustproof construction ensures durability in harsh environments, while the included 10-in-1 adapter kit guarantees compatibility with most major solar generators. Lightweight and compact with adjustable kickstands, it’s the perfect power solution for camping, RVing, and emergency preparedness. ## Description Specifications:Model: SL21WWattage: 21WConversion Rate: 23%Folded Size: 6.3'' x 11.4'' 1.4''Unfolded Size: 26.8'' x 11.4'' 1.4''Weight: 1.32 lbsUSB A Outputs: 5V / 2.4ADC Output: 18V / 1.1AMaterial: Monocrystalline Silicon & Waterproof FabricOpen Circuit Voltage: 21.6V ± 5%Short Circuit Current: 1.26A ± 5%Operational Voltage: 18V ± 5%Operational Current: 1.17A ± 5% Operational Temperature: -10~70℃ / 14~158℉ ## Features - PORTABLE, FOLDABLE & EASY TO CARRY: The MARBERO portable solar panel is compact and lightweight, with a folded size of 11.4" x 6.3" x 1.3" and weighing just 1.32 lbs—smaller than an iPad Pro. It easily fits into any camping backpack or hiking daypack, or can be carried by hand, making it perfect for outdoor activities like camping, traveling, or any occasion when you need it. Designed with 4 attachment holes, this foldable solar charger can be conveniently hung anywhere using the included carabiners. - HIGHER SOLAR CONVERSION: The 21W portable foldable solar panel is equipped with high-efficiency solar arrays, offering a conversion rate of up to 23%, turning sunlight into electrical energy for faster charging. The MARBERO 21W portable solar panel features a built-in smart chip that intelligently detects your device, maximizing charging speed while protecting it from overcharging and overloading. This ensures a more relaxed and worry-free outdoor experience without the concern of running out of power. The smart charging technology also provides optimal, 100% safe charging in direct sunlight. - POWER IN SUN OR SHADE: This 21W portable solar panel maintains high efficiency even on cloudy days. Under full sunlight and at an optimal tilt angle (35 to 65 degrees), it generates 18W–21W of power. On cloudy or overcast days, the foldable solar panel still provides 12W–16W, ensuring reliable power for your devices in any weather. - DURABLE & VERSATILE: The MARBERO portable foldable solar panel is crafted from high-quality, durable Oxford cloth and features IP65 waterproofing, dust resistance, and high-temperature durability. This portable solar charger is perfect for a wide range of outdoor activities, including camping, hiking, picnics, RV adventures, road trips, travel to remote areas, car trips, boating, power outages, and off-grid living. It’s an essential piece of emergency backup gear. - WIDE COMPATIBILITY: The USB A and DC ports are built into the power box of the MARBERO 21-watt portable foldable solar panel charger, making it perfect for charging your smartphones, tablets, laptops, power bank, speaker, portable power stations, and more. This portable solar panel, designed for camping and outdoor use, offers a reliable solar panel charging solution wherever you go, whether you're using it as a camping solar panel or for general on-the-go power needs. Our portable solar charger can't store electricity and can't charge laptops and power station. - 12 MONTHS WARRANTY: MARBERO solar panel will offer 12 months warranty and 7*24 customer service after your purchase. If you have any problem with the product, please feel free to contact us via desertcart message. - PACKAGE INCLUDES: 1*MARBERO Foldable Solar Panel 21W, 1*DC 5521 Cable, 3*Interchangeable DC Adapters, 1*User Manual, 2*Carabiners. NOTE: Any clouds, the angle toward sunlight, operating temperature and sunlight intensity will affect the real output, we don't suggest you use this foldable solar panel inside of a window or windscreen. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CFF315PD | | Amperage Capacity | 1.26 A | | Best Sellers Rank | #5,431 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #20 in Solar Panels | | Brand Name | MARBERO | | Connector Type | DC 55*21 to DC 55*21 | | Customer Reviews | 4.3 4.3 out of 5 stars (2,104) | | Efficiency | 23% | | Folded Size | 11*6 INCHES | | Included Components | 2 Carabiners, 3 Interchangeable DC Adapters, Bag, DC 5521 Cable, User Manual | | Item Dimensions L x W x H | 11"L x 6"W x 1.3"H | | Item Type Name | Oxford Nylon | | Item Weight | 1.3 pounds | | Manufacturer | MARBERO | | Manufacturer Part Number | ET-21W | | Manufacturer Warranty Description | MARBERO 21W Solar Panel will offer 12 months warranty and 7*24 customer service after your purchase. If you have any problem, please feel free to contact us. | | Material Type | Oxford cloth | | Maximum Power | 21 watts | | Maximum Voltage | 18 volts_of_direct_current | | Model Number | ET-21W | | Number of Items | 1 | | Output Voltage | 18 volts | | Special Features | Efficient power generation in both sunny and cloudy conditions, high conversion rate, portable design, and smart charging technology | | Upper Temperature Rating | 70 °C | ## Product Details - **Brand:** MARBERO - **Efficiency:** 23% - **Item Weight:** 1.3 pounds - **Material:** Oxford cloth - **Product Dimensions:** 11"L x 6"W x 1.3"H ## Images ![MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy - Image 1](https://m.media-amazon.com/images/I/81VfqlB5DhL.jpg) ![MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy - Image 2](https://m.media-amazon.com/images/I/41Zq1cMrT9L.jpg) ![MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy - Image 3](https://m.media-amazon.com/images/I/41aRsMu-GrL.jpg) ![MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy - Image 4](https://m.media-amazon.com/images/I/41TY4NipAPL.jpg) ![MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy - Image 5](https://m.media-amazon.com/images/I/51E86UEQ1-L.jpg) ## Available Options This product comes in different **Color** options. ## Frequently Bought Together - MARBERO 100W Portable Solar Panel 100 Watt Foldable Solar Panel Charger for Power Station, USB/DC Devices 18V Output(10 Connectors) >23% High Efficiency IP68 Waterproof for Camping Outdoor RV Cloudy - MARBERO Portable Power Station 240Wh 350W Peak Camping Portable Power Bank with AC Outlet 110V(3*USB A, 2*USB C, 2*AC,2*DC) Solar Generator for Outdoor Travel Home Emergency Hurricane --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/657480866-marbero-21w-portable-solar-panel-foldable-solar-panel-charger-ip65](https://www.desertcart.hk/products/657480866-marbero-21w-portable-solar-panel-foldable-solar-panel-charger-ip65) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-08-22*