Description
High efficiency cells
5 Dimensional Solar Panel
Tough 8th Generation
Sun-Click Connectors
Shadow Optimized IQ
5-Year Warranty
The amazing IQ Series
For more than a decade, SUNBEAMsystem has driven the development of marine solar panels with a clear focus on real-life use on board. Tough G8 is the core model for anyone who wants high efficiency, long service life, and a clean, premium look – and it’s also available in an IQ version for users who want added built-in intelligence.
With 22.6% efficiency, Tough G8 delivers a lot of power per square metre, building on high-quality Maxeon\Sunpower cell technology. Compared with simpler black panels, you get both more energy and a more uniform deep-black surface that really elevates the look of your boat.
The core is the 5D8 – the eighth generation of the Tough series’ five-dimensional technology evolution – where every layer, from the new G8 surface to the composite sandwich core and internal cabling, is optimized for high output, low losses, and long life in demanding marine environments. At the same time, Shadow Optimized ensures the panel continues to deliver energy even under partial shading, while reducing long-term stress on the cells.
In the IQ version, integrated microprocessor-based functions add an extra layer of protection and optimization at panel level. The result is more stable energy production in changing on-board conditions — without changing the Tough design or installation approach.
Shadow Optimized – IQ
Microprocessor Enhanced
With Shadow Optimized–IQ, a microchip built into the panel takes over the job normally handled by bypass diodes. The result is higher real-world efficiency, reduced energy losses and automatic shade management, whether your array is wired in series or in parallel.
By replacing traditional silicon bypass diodes, Shadow Optimized–IQ removes the weakest link in an otherwise robust construction. Diodes are well known for failing under heat, over-current, over-voltage and electrical spikes – all of which are everyday realities for solar panels on a yacht. When a diode fails, the panel will, sooner or later, fail with it – often without any obvious explanation to the owner. Our microchip-based solution is not only more efficient; it is also, compared with diodes, far more robust and effectively fail-safe in normal operation.
Shadow Optimized–IQ eliminates that vulnerability by replacing diodes with fully potted micro-electronics designed to handle shading events intelligently. The panel still uses Flushed Soft Junction – an invisible, design-protected cable exit with no loose cables across the deck – and all electronics are fully encapsulated for maximum service life in a harsh marine environment.
We particularly recommend IQ models where several panels are connected to the same regulator
Essential in series strings
Protects shaded cells under partial shading, where they would otherwise run hot and suffer a dramatically shortened service life – or, in the worst case, create localised hot-spots.
A major benefit in parallel systems
Especially on yachts and motorhomes, where partial shading is a fact of life. The IQ microchips react instantly to shade that would otherwise, over time, begin to compromise even a parallel-connected panel.
For maximum energy yield and long service life we always recommend parallel connection. If your battery voltage forces you into a series string – or you are considering a regulator with a high start-up threshold or one mainly optimized for series arrays – you are better off choosing a regulator designed around parallel installations afloat, such as SUNBEAMsystem Moonray.
Award-Winning Performance
Tough solar panels have repeatedly excelled in independent tests, proving their real-world performance—not just theoretical results.
Test Highlights:
- Effective at high temperatures: Only a 13% power loss at 75°C compared to standard measurements at 25°C.
- Highest power output: Best measured performance at a perpendicular angle, compared to other tested panels.
- Durable and easy to use: “A walkable and robust flexible solar panel that’s easy to install thanks to the exceptionally well-designed cable connection.”
- Smallest footprint: Highest measured Watt/m2 performance among the alternatives.
The Five-Dimensional Technological Evolution
The SUNBEAMsystem Tough series continues to lead with innovative technology. Five “dimensions” work together to create some of the most powerful, efficient and durable solar panels on the market
1. NEW G8 reinforced outer protection: SUNBEAMsystem’s unique surface technology with exceptional UV resistance and high transparency outperforms other “high-performance” coatings, such as ETFE.
2. Premium Maxeon (SunPower) cells: Higher efficiency (more watts per m²), broader light absorption, deep-black colour and longer service life.
3. Expandable, advanced and robust cabling: In-house developed internal cabling, both durable and expandable, ensures long-term performance.
4. UPGRADED G8 shock-absorbing layer: A robust material that protects the solar cells and cabling, improving durability and lifetime.
5. Lightweight composite sandwich core with high strength: A high-tech sandwich composite that protects the cells and offers near-metal mechanical properties – without the delamination risk seen in metal–plastic constructions.
Benefits of a rigid core
Soft panels wear out and lose performance more quickly due to the daily, repeated expansion and contraction that solar panels experience. Adding a metal plate is not a sustainable solution either, as differing expansion between metal and plastic leads to delamination.
With our unique sandwich composite – an integral part of 5D8 – we eliminate this problem and ensure superior durability.
Flushed Soft Junction
SUNBEAMsystem has been a pioneer in Soft Junction technology for more than ten years. The latest and most seamless design is unique and design-protected. The cabling has also been refined – the Flush cable can be glued on the outside or routed through a hole beneath the panel for a completely invisible, cable-free installation.
Advantages:
- Up to 6% higher energy output
- Discreet- truly cable-free installation
- Eliminates wear from concentrated pressure on the panel
- Extremely durable and stable under high loads
- Prevents heat-induced deformation of the solar panel
Flush Cable Benefits:
- Flexible install discreetly or completely hidden
- UV-protected and tinned for maximum durability in marine environments
- Low-loss core in a compact housing just 1.2 mm thick
Shadow Optimized
Tough G8 is equipped with SUNBEAMsystem’s unique Shadow Optimized technology, specially developed to improve panel performance under shading. This provides higher energy yield and better charging throughout the day.
On a traditional panel, even minor partial shading can stop charging completely – not only reducing output but also stressing the panel and shortening its lifespan. Shadow Optimized counteracts both of these issues, ensuring reliable charging and longer service life.
Shadow Optimized
Tough G8 is equipped with SUNBEAMsystem’s unique Shadow Optimized technology, specially developed to improve panel performance under shading. This provides higher energy yield and better charging throughout the day.
On a traditional panel, even minor partial shading can stop charging completely – not only reducing output but also stressing the panel and shortening its lifespan. Shadow Optimized counteracts both of these issues, ensuring reliable charging and longer service life.
Comparison of Models and Solar Cells
We use only premium cells from Maxeon\Sunpower, which are top of the line and provide much better performance than Maxeon\Sunpower’s lower-cost alternatives. They are essential for enabling our solar panels to perform at the highest level. The table below compares different models (with explanations of each factor underneath in the original documentation).
Lifetime
Assesses how well the panel tolerates varying conditions, especially partial shading. High-quality Maxeon\Sunpower cells are less sensitive to such conditions and therefore achieve a longer lifespan. Combined with our unique Shadow Optimized technology, this results in significantly improved durability.
Efficiency
Directly linked to panel performance: higher efficiency means more energy from the same surface area.
Shadow Optimized Boost
Premium cells are designed to reduce heat build-up and power loss under shading. The higher the cell quality, the less heat is generated, which improves the effectiveness of our Shadow Optimized technology and increases total energy production – particularly important on boats and in motorhomes.
Aesthetics
For many users, the appearance of the cells matters. High-performance cells are characterised by a deep, uniform black colour.
5-Year Warranty
SUNBEAMsystem uses advanced technology, high-quality solar cells and durable materials to create panels that can handle tough conditions. Tough panels come with a unique 5-year warranty* – unusually generous for light and thin solar panels.
Warranty handling and support are made easy via the Multi Connect app, which also offers remote control and online energy statistics for convenient monitoring and optimisation of your system.
*See the manual for full terms and registration requirements.
Tips for Maximizing Your Solar Panels’ Performance
- Install the panels in unshaded locations and use multiple panels to cover larger surfaces.
- Choose black panels if you want to combine them with our Tough Black-Hole solution – this not only improves the aesthetics but also makes it easier to utilise large areas.
For boats and motorhomes, parallel connection is recommended, as it offers the best performance and helps maintain panel lifetime. Use one or more MPPT charge regulators, such as Moonray, which are optimized to maximize the efficiency of parallel-connected panels (for both single panels and panel groups) – especially Moonray with Shadow Optimized – WeatherMAX technology.
This panel is designed for parallel connection. If, for any reason, you need a different setup, we recommend Moonray BOOST or our Tough-IQ panels.
Upgrading to SMART LITHIUM LiFePO4 batteries reduces energy losses during charging and discharging, providing a quick and effective upgrade to your electrical system.
All our smart products can be monitored and controlled via the Mobile Smart Home app, which includes a statistics view to help you optimize overall system efficiency.
If you’d like more advice on installation or optimisation, feel free to contact us!
Product Information
The Tough G8 series is designed without eyelets and is supplied with a separate sheet of double-sided 3M VHB tape, including an extra primer sheet for the flexible cable connection.
Mounting with 3M VHB not only provides a convenient installation method – it also significantly extends the panel’s service life. If you choose a different installation method, you must carefully follow the manual and use only certified sealants listed there for correct application.
The included installation manual provides detailed instructions for both mechanical mounting and electrical connections, as well as information on how to register the product to apply for extended warranty.
TECHNICAL OVERVIEW
| Article# | P | Pmax | Power Tolerance | Max MPPT Voltage | Max panels in series | Voc | Isc | Vmp | Imp | Wp/m2 | Maxeon Sunpower |
|---|---|---|---|---|---|---|---|---|---|---|---|
T8-106×54 | 111W | 110.8W | +/- 3% | 30Voc | Not for serial use | 21.76V | 6.32A | 18.56V | 5.97A | 194 | Sunpower/Maxeon (>22.5%) |
| T8-109×54-IQ | 111W | 110.8W | +/- 3% | 90Voc | Max 3 | 21.76V | 6.32A | 18.56V | 5.97A | 188 | Sunpower/Maxeon (>22.5%) |
| T8-78×54 | 78W | 78.4W | +/- 3% | 30Voc | Not for serial use | 23.12V | 4.48A | 19.72V | 3.98A | 187 | Sunpower/Maxeon (>22.5%) |
| T8-54×54 | 55W | 55.4W | +/- 3% | 30Voc | Not for serial use | 21.76V | 3.16A | 19.5V | 2.82A | 190 | Sunpower/Maxeon (>22.5%) |
| T8-38×53 | 37W | 36.9W | +/- 3% | 30Voc | Not for serial use | 21.77V | 2.11A | 18.57V | 1.99A | 182 | Sunpower/Maxeon (>22.5%) |
| T8-28×43 | 21W | 20.8W | +/- 3% | 30Voc | Not for serial use | 24.48V | 1.19A | 20.88V | 0.99A | 173 | Sunpower/Maxeon (>22.5%) |
| Article# | Shadow Optimized | Internal Structure | Length | Width | Weight* | Cable | Cable Length | Cable Exit | 3M VHB sticker |
|---|---|---|---|---|---|---|---|---|---|
| T8-106×54 | Yes | Glass Fiber Sandwich | 106cm | 54cm | 2.5kg | Flush | 1.5m | Short side | Yes |
| T8-109×54-IQ | IQ – Microprocessor Enhanced | Glass Fiber Sandwich | 109cm | 54cm | 2.8kg | Flush & Sunclick** | 1.5m | Short side | Yes |
| T8-78×54 | Yes | Glass Fiber Sandwich | 77.8cm | 54cm | 1.9kg | Flush | 1.5m | Short side | Yes |
| T8-54×54 | Yes | Glass Fiber Sandwich | 54cm | 54cm | 1.3kg | Flush | 1.5m | Short side | No |
| T8-38×53 | No | Glass Fiber Sandwich | 37.8cm | 53.5cm | 0.7kg | Flush | 1.5m | Long Side | Yes |
| T8-28×43 | No | Glass Fiber Sandwich | 43.4cm | 27.7cm | 0.3kg | Flush | 1.5m | Short side | Yes |
VOC: Open Circuit Voltage | ISC: Short Circuit Current | VMP: Maximum Power Voltage | IMP: Maximum Power Current
* Weight excluding cables
**Sunclick is mc4 backwards compatible
| Tough G8 IQ 111w (T8-109×54-IQ) | |
|---|---|
| P | 111W |
| Pmax | 110.8W |
| Power Tolerance | +/- 3% |
| Max MPPT Voltage | 90Voc |
| Max panels in series | Max 3 |
| Voc | 21.76V |
| Isc | 6.32A |
| Vmp | 18.56V |
| Imp | 5.97A |
| Wp/m2 | 188 |
| Maxeon Sunpower | Sunpower/Maxeon (>22.5%) |
| Shadow Optimized | IQ – Microprocessor Enhanced |
| Internal Structure | Glass Fiber Sandwich |
| Width | 54cm |
| Length | 109cm |
| Weight* | 2.8kg |
| Cable | Flush & Sunclick** |
| Cable Length | 1.5m |
| Cable Exit | Short Side |
| 3M VHB Sticker | Yes |
