Tough 21W

149.00 

• High Efficiency: 22.6% efficiency, universal for various applications.
• Superior Durability: UV-resistant, built for harsh environments.
• Optimized Output: Shadow optimization for improved performance.
• Easy Install & Warranty: Flexible kit installation, 5-year warranty

Solar panels need a charge controller!
Did you know that MoonRay is made to improve charging compared to other charge controllers?

In stock (can be backordered)

SKU: T-28x43-H Categories: , Tags: , , , , , ,

POWERFUL & COMPACT

Flat Flush Cable

UV-Proof & Antislip

SHADOW OPTIMIZED

5 Year Warranty

extremely durable and resistant

Since the launch of its first groundbreaking solar panel over a decade ago, SUNBEAMsystem has continuously led the development forward through its capacity for innovation. The combination of a strong focus on boating and its Swedish origin has resulted in products that are better adapted for everyday needs. In short, this is more evident than ever in the latest update, featuring a host of innovative technologies in a single solar panel. The Tough series is only challenged by its advanced siblings, characterized by a “plus” in their names.

The original Tough series offers a universal power solution for a wide variety of applications. Featuring our unique Tough surface and equipped with Sunpower cells with an efficiency of 22.6%, it provides a reliable source of power in harsh environments.

The 5 Dimensional Solar Panel

SUNBEAMsystem’s Tough series sets the standard for durability and longevity in solar panel technology. Our unique five-dimensional approach results in exceptional build quality, where each aspect works together to boost overall performance

  1.  Enhanced Outer Protection Layer
    Our proprietary layer offers unmatched UV resistance and transparency, surpassing other types of ‘premium’ surfaces
  2. Premium Sunpower Cells
    These high-end cells provide superior efficiency (more Watts/m2), wider light spectrum capture, longer lifespan, and a deeper black color.
  3.  Advanced Conduits & Durability Core
    Robust internal conduits within multiple protective layers ensure lasting performance.
  4. Shock Absorbing Layer
    All solar cells and wiring are embedded in a distinct shock-absorbing material, enhancing their longevity.
  5. Sandwich Composite Stiffener Layer
    A lightweight, high-tech core that optimally maintains structural integrity, offering near-metal properties without the delamination risk of combining metal with plastics.

The 5 Dimensional Solar Panel

SUNBEAMsystem’s Tough series sets the standard for durability and longevity in solar panel technology. Our unique five-dimensional approach results in exceptional build quality, where each aspect works together to boost overall performance

  1.  Enhanced Outer Protection Layer
    Our proprietary layer offers unmatched UV resistance and transparency, surpassing other types of ‘premium’ surfaces
  2. Premium Sunpower Cells
    These high-end cells provide superior efficiency (more Watts/m2), wider light spectrum capture, longer lifespan, and a deeper black color.
  3.  Advanced Conduits & Durability Core
    Robust internal conduits within multiple protective layers ensure lasting performance.
  4. Shock Absorbing Layer
    All solar cells and wiring are embedded in a distinct shock-absorbing material, enhancing their longevity.
  5. Sandwich Composite Stiffener Layer
    A lightweight, high-tech core that optimally maintains structural integrity, offering near-metal properties without the delamination risk of combining metal with plastics.

Flushed Soft Junction

The result of a decade of pioneering, our protected design offers two cable routing options: outside the panel or through the hull. 

Soft Junction advantages

● Boosts output by up to 6% due to direct solar cell string connection.
● Improves aesthetics – a truly cable-free installation.
● Eliminates intrusion and pressure on the solar panel.
● Prevents breaking forces when walking on it.
● Counters heat-induced reshaping of the solar panel.

 

The advantages of our unique, in-house developed flat Flush power cable

● Versatile: can be entirely concealed or have minimal height on the surface.
● UV-protected and pre-tinned for maximum durability in marine settings.
● Features a thick, low-loss core within a compact jacket, only 1.2mm tall.

Flushed Soft Junction

The result of a decade of pioneering, our protected design offers two cable routing options: outside the panel or through the hull. 

Soft Junction advantages

● Boosts output by up to 6% due to direct solar cell string connection.
● Improves aesthetics – a truly cable-free installation.
● Eliminates intrusion and pressure on the solar panel.
● Prevents breaking forces when walking on it.
● Counters heat-induced reshaping of the solar panel.

 

The advantages of our unique, in-house developed flat Flush power cable

● Versatile: can be entirely concealed or have minimal height on the surface.
● UV-protected and pre-tinned for maximum durability in marine settings.
● Features a thick, low-loss core within a compact jacket, only 1.2mm tall.

Series & Cell Comparison

Our partnership with Sunpower grants us special access to the highest grade, state-of-the-art solar cells, enhancing our panels’ craftsmanship. Despite prevailing assumptions, not all Sunpower cells are alike; lower-cost options will not match performance of premium cells. This distinction is crucial, as high-quality cells elevate our superior craftsmanship. Below are essential performance criteria for comparison:

● Longevity: This measures the panel’s durability under various conditions, particularly in partially shaded environments. High-quality cells (more expensive) are less sensitive, leading to an extended lifespan.

● Shadow-Optimized Boost: Premium cells minimize heat and power loss when partially shaded, enhancing our Shadow Optimizing technology for an even greater power boost.

● Efficiency: Efficiency is directly proportional to output; higher efficiency means more power generated from the same surface area under all conditions.

● Aesthetics: The appearance of the cells, with high-performance cells displaying a deep, uniform black color, is especially important for black panels.

Series & Cell Comparison

Our partnership with Sunpower grants us special access to the highest grade, state-of-the-art solar cells, enhancing our panels’ craftsmanship. Despite prevailing assumptions, not all Sunpower cells are alike; lower-cost options will not match performance of premium cells. This distinction is crucial, as high-quality cells elevate our superior craftsmanship. Below are essential performance criteria for comparison:

● Longevity: This measures the panel’s durability under various conditions, particularly in partially shaded environments. High-quality cells (more expensive) are less sensitive, leading to an extended lifespan.

● Shadow-Optimized Boost: Premium cells minimize heat and power loss when partially shaded, enhancing our Shadow Optimizing technology for an even greater power boost.

● Efficiency: Efficiency is directly proportional to output; higher efficiency means more power generated from the same surface area under all conditions.

● Aesthetics: The appearance of the cells, with high-performance cells displaying a deep, uniform black color, is especially important for black panels.

Compare your product

Check all the best features on the SUNBEAMsystem solar panels compared to the main competitors on the market.

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Product Info

Tough 21W

Tough 111W Black - Flush Solar Panel

Tough+ 116W - Flush Solar Panel

Tough++ 126W - Flush Solar Panel

Big brand inhouse-made "flexible" solar panel

Major brand expensive version, incorporating medium sunpower cells

So-called "flexible" solar panels

Not so common rigid glass panel with sunpowercells

Cheap rigid glass solar panel with oldstyle cells

Major brand cheaper solar panel

Old style semi-thin solarpanel with metal backplate

So-called "flexible" with ETFE surface solar panels

Price 149.00  520.00  678.00  1081.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00 
Usage Area - - - - Yatch Deck, Canvas / Bimini, Camping, Motorhome Roof & Side, Temporary Yatch Deck, Canvas / Bimini, Camping, Motorhome Roof & Side, Temporary - - - - - -
Cell Protection ★★★★☆ ★★★★★ ★★★★★ ★★★★★ ★★☆☆☆ ★★★☆☆ ★☆☆☆☆ ★★★★★ ★★★★★ ★★☆☆☆ ★★★★★ ☆☆☆☆☆
Delamination Protection ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★☆ ★★★★☆ ★☆☆☆☆ ★★★★★ ★★★★★ ★★★★☆ ☆☆☆☆☆ ★★★☆☆
Black Gap Aesthetic Filler Compatibility - Tough Black Hole* - - - - - - - - - -
UV Durability ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★☆☆☆ ★★★★☆ ☆☆☆☆☆ ★★★★★+ ★★★★★ ★★★☆☆ ★★☆☆☆ ★★★★☆
Cell Efficiency (Watt / Area) ★★★★☆ ★★★★☆ ★★★★★ ★★★★★+ ★★★★☆ ★★★★☆ ★★☆☆☆ ★★★☆☆ ☆☆☆☆☆ ★★☆☆☆ ★☆☆☆☆ ★★★☆☆
Power Output in Real-Life Conditions ★★★★★ ★★★★★ ★★★★★ ★★★★★+ ★★★★☆ ★★★★☆ ★★★☆☆ ★★★★☆ ☆☆☆☆☆ ★★☆☆☆ ★☆☆☆☆ ★★★★☆
Shadow Optimization*
Cell behavior during partial shadowing ★★★★☆ ★★★★☆ ★★★★★ ★★★★★ ★★★★☆ ★★★★☆ ★★☆☆☆ ★★★★☆ ☆☆☆☆☆ ★★☆☆☆ ★☆☆☆☆ ★★★☆☆
Internal Electrical Design ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★☆ ★★★★☆ ☆☆☆☆☆ ★★★★☆ ★☆☆☆☆ ★★★☆☆ ★★☆☆☆ ★★★☆☆
Heat Power Degradation Very Low Very Low Very Low Very Low Very Low Low High Low Very High High High Medium
Fitting Options Adhesive, Screws (not prefered and fit for some cases) Adhesive, Screws (not prefered and fit for some cases) 3M double side bonding included, Adhesive 3M double side bonding included, Adhesive ———– ———– ———– ———– ———– ———– ———– ———–
Surface Integration ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★☆☆☆ ★★☆☆☆ ★★☆☆☆ Not Applicable Not Applicable ★★☆☆☆ ★★☆☆☆ ★★☆☆☆
Flush Cable* 2021 Edition 2021 Edition 2021 Edition 2021 Edition
Fitting on Uneven Surface (Surface Patterns >1mm) ★★★★☆ ★★★★★ ★★★★★ ★★★★★ ★★✬☆☆ ★★✬☆☆ ☆☆☆☆☆ Not Applicable Not Applicable ★★✬☆☆ ★★★★☆ ☆☆☆☆☆
Price149.00 520.00 678.00 1081.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 
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*Protected design SUNBEAMsystem

TECHNICAL OVERVIEW

Tough 21W – Flush
P21W
Wp20.80W
Ptol±3%
Max System Voltage30V
Max System Voltage with bypass diode*65V
Voc24.48V
Isc1.19A
Vmp20.88V
Imp0.99A
Sunpower Cells>22.5%
Shadow OptimizationNo
Width27.7 cm
Length43.4 cm
Weight0.3 kg
Cable Length1.5m Flush
Holes4 x 6mm
VOC: Open Circuit Voltage   |   ISC: Short Circuit Current   |   VMP: Maximum Power Voltage   |   IMP: Maximum Power Current
* Requires a by-pass diode, provided by sunbeamsystem. However, serial connections are not recommended due to lower production and a shorter life expectancy.
Learn more.
Article#PWpPtolMax System VoltageMax System Voltage
with bypass diode*
VocIscVmpImpSunpower Cells
T-15×8521W20.8W±3%30V50V24.48V1.19A20.88V0.99A>22.5%
T-28×43-H21W20.8W±3%30V50v24.48V1.19A20.88V0.99A>22.5%
T-38×53-H37W36.9W±3%30V50V21.77V2.11A18.57V1.99A>22.5%
T-54×54-H55W55.4W±3%30V65V21.76V3.16A19.5V2.82A>22.5%
T-78×54-H78W78.4W±3%30V65V23.12V4.48A19.72V3.98A>22.5%
T-106×54-H111W110.8W±3%30V65V21.76V6.32A18.56V5.97A>22.5%
Article#Shadow OptimizedWidthLengthWeightCable Length3M filmHoles
T-15×85No14.7 cm85 cm0.3 kg1.5m FlushNoNo
T-28×43-HNo27.7 cm43.3 cm0.3 kg1.5m FlushNo4 x 6mm
T-38×53-HNo37.8 cm53.5 cm0.7 kg1.5m FlushNo4 x 6mm
T-54×54-HYes54 cm54 cm1.2 kg1.5m FlushNo4 x 6mm
T-78×54-HYes54 cm77.8 cm1.5 kg1.5m FlushNo4 x 6mm
T-106×54-HYes54 cm106 cm2.6 kg1.5m FlushNo6 x 6mm
VOC: Open Circuit Voltage   |   ISC: Short Circuit Current   |   VMP: Maximum Power Voltage   |   IMP: Maximum Power Current
* Requires a by-pass diode, provided by sunbeamsystem. However, serial connections are not recommended due to lower production and a shorter life expectancy.
Learn more.

Additional information

Weight0.33 kg
Dimensions46.5 × 31 × 3 cm