RENOGY WMT-R21EF-2 Flex Solar Panel Dual Usb E.flex 21W
( Brand: Renogy ), ( Manufacturer Part Number: WMT-R21EF-2 ), ( Current Output: 10 A Or Less ), ( System Configuration: Off-grid ), ( Solar Technology: Monocrystalline ), ( Power Source: Solar ), ( Size: 11.0 X 7.3 In ), ( Wattage: 20-29 W ), ( Item Length: 11.0 In ), ( Current Type: Dc ), ( Voltage: 5 V ), ( Connector Type: Usb ), ( Features: Portable, Foldable, Adjustable Nylon Kickstand, Dual Usb Ports, Water-resistant ), ( Pliability: Flexible ), ( Maximum Input Power: 21 W ), ( Color: Black, Blue ), ( Current Rating: 2.4 A Max ), ( Material: Nylon ), ( Type: Solar Panel ), ( Recommended Environment: Outdoor ), ( Resistance Properties: Water Resistant, Rugged ), ( Application: Camping/hiking ), ( Recreational Vehicle: Rv ), ( Product Line: E.flex )
Review RENOGY E.flex Portable Foldable Solar Panel Dual Usb Black
Introducing the Renogy WMT-R21EF-2 E.Flex 21 Solar Panel, a versatile and powerful addition to your renewable energy system. This 21-watt solar panel is designed with flexibility in mind, featuring Renogy's innovative E.Flex technology that allows it to be easily bent and installed on various surfaces with ease.
The panel is composed of 72 monocrystalline silicon solar cells, each one carefully selected for optimal performance. Its dimensions are 57.6 x 32.7 x 1.2 inches, making it a compact yet effective solution for charging your devices or powering small appliances. Weighing only 6.61 lbs, it's also highly portable, perfect for camping trips, RVs, or off-grid living.
Two built-in USB ports (5V, 2.4A each) provide convenient charging options for smartphones, tablets, and other USB-powered devices. The panel also comes with an adjustable aluminum stand, allowing you to adjust the angle of the panel for maximum sunlight exposure.
Safety is a priority with the Renogy WMT-R21EF-2 E.Flex 21 Solar Panel. It is equipped with an MTW-15 charge controller (sold separately) to protect the battery from overcharging, over-discharging, or reverse polarity. The panel is also designed with a waterproof junction box and PID-free technology to ensure long-lasting performance, even in harsh weather conditions.
The panel's frame is made of durable, corrosion-resistant aluminum, ensuring a long lifespan. Its black anodized finish not only looks great but also helps to reduce reflection and improve efficiency. The panel is also compatible with various Renogy mounting systems (sold separately) to provide you with even more installation options.
Overall, the Renogy WMT-R21EF-2 E.Flex 21 Solar Panel is a reliable and efficient solution for your renewable energy needs. Its flexible design, built-in USB ports, and durable construction make it a versatile and practical choice for various applications.
Renogy WMT-R21EF-2 E.Flex 21 Solar Panel: An In-depth Analysis
The Renogy WMT-R21EF-2 E.Flex 21 is a portable and flexible solar panel, offering a power output of 21 watts. In this analysis, we will discuss the pros and cons of investing in this solar panel to help you make a well-informed decision.
Pros:1. Portability: The lightweight and flexible design makes it easy to carry and install in various locations.
2. Dual USB Output: The panel comes with two USB ports, allowing you to charge multiple devices simultaneously.
3. Monocrystalline Solar Cells: The monocrystalline solar cells offer better efficiency and durability compared to polycrystalline cells.
4. Waterproof: The panel is waterproof, making it suitable for outdoor use and exposure to different weather conditions.
5. Built-in Charge Controller: The built-in charge controller ensures that the solar panel charges devices safely and efficiently.
Cons:1. Power Output: With a power output of only 21 watts, it may not be sufficient for charging larger devices or multiple devices at once.
2. Limited Angle Adjustment: The panel does not come with an adjustable mount, which can limit its efficiency in different sunlight conditions.
3. Cost: Compared to other solar panels in the market, the Renogy WMT-R21EF-2 E.Flex 21 is on the higher side in terms of price.
Conclusion:The Renogy WMT-R21EF-2 E.Flex 21 solar panel is a versatile and efficient option for those who require a portable and lightweight solar panel for charging smaller devices. Its monocrystalline solar cells, dual USB outputs, waterproof design, and built-in charge controller make it a reliable and convenient choice. However, its limited power output and angle adjustment capabilities, along with its higher price point, may deter some potential buyers.
Recommendation:If you're looking for a portable solar panel for charging smaller devices such as smartphones, tablets, or cameras, the Renogy WMT-R21EF-2 E.Flex 21 is an excellent choice due to its flexibility, durability, and efficient design. However, if you require a higher power output or an adjustable mount, you may want to consider other solar panel options in the market.
Details:
One is just the panel one opened box with all cords.
part #: wmtr21ef2 prices
- $35.00-$125.99
specifications solarparley:
- brand: Renogy
- mpn: Wmt-r21ef-2
- current output: 10 A Or Less
- system configuration: Off-grid
- solar technology: Monocrystalline
- power source: Solar
- size: 11.0 X 7.3 In
- wattage: 20-29 W
- item length: 11.0 In
- current type: Dc
- voltage: 5 V
- connector type: Usb
- features: Portable, Foldable, Adjustable Nylon Kickstand, Dual Usb Ports, Water-resistant
- pliability: Flexible
- maximum input power: 21 W
- color: Black, Blue
- current rating: 2.4 A Max
- material: Nylon
- type: Solar Panel
- recommended environment: Outdoor
- resistance properties: Water Resistant, Rugged
- application: Camping/hiking
- recreational vehicle: Rv
- product line: E.flex
returns solarparley:
- policy: No Returns
seller solarparley:
- rating: 100.0%
- # reviews: 2
- city: Ripplemead, Virginia
payments solarparley:
- wallet: Google-pay
- credit card: Mastercard
- other
general solarparley:
- condition: Open box
- Alternative Energy Supplies > Solar Power Supplies > Solar Panels Kits
shipping solarparley:
- carrier: USPS
- class: Expedited
- service: USPS Priority Mail
- type: Calculated
- transit: 4-10 Days
- cost: $27.73
offer solarparley:
- availability: In Stock
- sold: 0
- started: January 27, 2026
- options: Ship-to-home
- best offers: True
- quantity: 1
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