
BLACK DESIGN PANEL

FLAT FLUSH CABLE

UV-Proof & Antislip

SHADOW OPTIMIZED

5 Year Warranty
THE BEST TOUGH FEATURES WITH A DISCREET BLACK LOOK
The SUNBEAMsystem Tough Black series has been designed to look both inconspicuous and elegant at the same time. Developed with the intention to integrate perfectly in the looks of both modern yachts and historical ships. Best suited for applications that put an emphasis on aesthetics: Tough Black pleases both the eye as well as your battery level.
With their dark appearance, the Tough Black panels will blend in on any even colored background. Whether this background is pure white or a classic brown: nobody will suspect there’s a solar panel hidden behind the all-black surface. For a truly seamless surface integration, you can use the Tough Black Hole filler. An identical material without any cells that can be cut to size to fill up any irregular shapes surrounding the panels.
The Tough Black series provides you with the same advantages as the normal Tough series but offers two additional models: the 55W Long Flush and the 114W Flush. For installation, we advise black flexible glue like Sikaflex 295.


Inside the Tough solar panelÂ
The name “Tough” in our solar panels represents their exceptional durability and longevity, as well as their enhanced energy output, thanks to the numerous innovative components that make up the panel.Â
A – ENHANCED OUTER PROTECTION LAYER
- Industry-leading UV durability
B – PREMIUM SUNPOWER® CELLS
- With each product level elevation, four aspects are augmented
- See the comparison table down the page
C – Internal electrical circuits
- Durable design with surge-resistant backup paths and cables, outperforming competitors
D – Shock-absorbing layer
- Soft top, rigid bottom for shock absorption
E – Ultra-Slim, Lightweight Hardened Stiffener
- Addresses solar curve & attachment-induced material fatigue
Prevents heat-related reshaping, zigzagging, & associated microfractures
Improves adaptability to surface irregularities
Inside the Tough solar panelÂ
The name “Tough” in our solar panels represents their exceptional durability and longevity, as well as their enhanced energy output, thanks to the numerous innovative components that make up the panel.Â

A – ENHANCED OUTER PROTECTION LAYER
- Industry-leading UV durability
B – PREMIUM SUNPOWER® CELLS
- With each product level elevation, four aspects are augmented
- See the comparison table down the page
C – Internal electrical circuits
- Durable design with surge-resistant backup paths and cables, outperforming competitors
D – Shock-absorbing layer
- Soft top, rigid bottom for shock absorption
E – Ultra-Slim, Lightweight Hardened Stiffener
- Addresses solar curve & attachment-induced material fatigue
Prevents heat-related reshaping, zigzagging, & associated microfractures
Improves adaptability to surface irregularities
5th Generation Junction for Superior Flush Results
The result of a decade of pioneering, our protected design offers two cable routing options: outside the panel or through the hull.Â

F – SILICONE PROTECTION
5th Generation Junction for Superior Flush Advantages:
- Up to 6% output increase thanks to the layout and direct string connection
- Improves aesthetics
- Prevents intrusion and pressure on the panel
- Resists breakage from stepping
- Tackles heat-induced reshaping and zigzagging
G – Flat Flush Cable
Our unique, in-house developed cable provides these advantages:
- Flexible: Surface-run or run internally (double folded)
- UV-protected, pre-tinned for marine durability
- Slim cable with a thick, low-loss core
5th Generation Junction for Superior Flush Results
The result of a decade of pioneering, our protected design offers two cable routing options: outside the panel or through the hull.Â

F – SILICONE PROTECTION
5th Generation Junction for Superior Flush Advantages:
- Up to 6% output increase thanks to the layout and direct string connection
- Improves aesthetics
- Prevents intrusion and pressure on the panel
- Resists breakage from stepping
- Tackles heat-induced reshaping and zigzagging
G – Flat Flush Cable
Our unique, in-house developed cable provides these advantages:
- Flexible: Surface-run or run internally (double folded)
- UV-protected, pre-tinned for marine durability
- Slim cable with a thick, low-loss core

With each product level elevation, four improvement aspects of solar cells are augmented:
– Longevity – Improved durability in various challenging conditions, especially in partially shaded environments, leading to a longer lifespan.
– Shadow optimized boost – High-end cells reduce heat and power loss during partial shading, further enhancing the unique Shadow Optimizingâ„¢ technology, providing an even higher power boost.
– Efficiency – The higher the efficiency, the greater your output on the same surface area under all conditions.
– Aesthetics – Deep Black, Even Colored Cells on the High-Performance Solar Cells.
With each product level elevation, four improvement aspects of solar cells are augmented:

– Longevity – Improved durability in various challenging conditions, especially in partially shaded environments, leading to a longer lifespan.
– Shadow optimized boost – High-end cells reduce heat and power loss during partial shading, further enhancing the unique Shadow Optimizingâ„¢ technology, providing an even higher power boost.
– Efficiency – The higher the efficiency, the greater your output on the same surface area under all conditions.
– Aesthetics – Deep Black, Even Colored Cells on the High-Performance Solar Cells.
Compare your product
Check all the best features on the SUNBEAMsystem solar panels compared to the main competitors on the market.
Slide to the right to navigate through all the products. You can click on the table and use your keyboard arrow keys too.
Product Info | ![]() ![]() Tough 78W Black - Flush Solar Panel | ![]() ![]() Tough+ 86W Black - Flush Solar Panel | ![]() ![]() Tough 78W - Flush Solar Panel | ![]() ![]() Tough+ 82W - 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 | 399.00 € | 659.00 € | 399.00 € | 519.00 € | - | - | - | - | - | - | - | - |
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* | 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) | 3M double side bonding included, Adhesive | Adhesive, Screws (not prefered and fit for some cases) | 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 | ★★✬☆☆ | ★★★★☆ | ☆☆☆☆☆ |
Price | 399.00 € | 659.00 € | 399.00 € | 519.00 € | ||||||||
Add to cart | Add to cart | Add to cart | Add to cart | Read more | Read more | Read more | Read more | Read more | Read more | Read more | Read more |
*Protected design SUNBEAMsystem

TECHNICAL OVERVIEW
Tough 78W Black – Flush | |
---|---|
P | 78W |
Wp | 78.4W |
Ptol | ±3% |
Max System Voltage | 30V |
Max System Voltage with bypass diode* | 65V |
Voc | 23.12V |
Isc | 4.48A |
Vmp | 19.72V |
Imp | 3.98A |
Sunpower Cells | >22.5% |
Shadow Optimized | Yes |
Width | 54 cm |
Length | 77.8 cm |
Weight | 1.9 kg |
Cable Length | 1.5m Flush |
Holes | 4 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# | P | Wp | Ptol | Max System Voltage | Max System Voltage with bypass diode* | Voc | Isc | Vmp | Imp | Sunpower Cells |
---|---|---|---|---|---|---|---|---|---|---|
T54x54FS-Black | 55W | 55.4W | ±3% | 30V | 65V | 21.76V | 3.16A | 19.5V | 2.82A | >22.5% |
T106x27FS-Black | 55W | 55.4W | ±3% | 30V | 65V | 21.76V | 3.16A | 19.5V | 2.82A | >22.5% |
T78x54FS-black | 78W | 78.4W | ±3% | 30V | 65V | 23.12V | 4.48A | 19.72V | 3.98A | >22.5% |
T79x74FS-Black | 114W | 114.3W | ±3% | 30V | 65V | 22.44V | 6.52A | 19.14V | 6.16A | >22.5% |
T106x54FS-Black | 111W | 110.8W | ±3% | 30V | 65V | 21.76V | 6.32A | 18.56V | 5.97A | >22.5% |
Article# | Shadow Optimized | Width | Length | Weight | Cable Length | 3M film | Holes |
---|---|---|---|---|---|---|---|
T54x54FS-Black | Yes | 54 cm | 54 cm | 1.2 kg | 1.5m Flush | No | 4 x 6mm |
T106x27FS-Black | Yes | 277 | 1060 | 1.2 kg | 1.5m Flush | No | No |
T78x54FS-black | Yes | 540 | 778 | 1.9 kg | 1.5m Flush | No | 4 x 6mm |
T79x74FS-Black | Yes | 740 | 785 | 2.6 kg | 1.5m Flush | No | No |
T106x54FS-Black | Yes | 540 | 1060 | 2.6 kg | 1.5m Flush | No | 6 x 6mm |