





WATTSTUNDE
WATTSTUNDE® WS120BL-HVS BLACK LINE shingle solar module 120Wp
Innovative Monocrystalline 120 Watt HV Solar Module with "Shingled Cell Technology"
Whether in a motorhome, garden, or on a boat - WATTSTUNDE® solar modules stand for the highest quality and the latest technology. Start your own self-sufficient solar power supply now with certified solar panels from WATTSTUNDE®! Conventional solar modules use copper connectors to interconnect individual photovoltaic cells. These thin cell connectors are eliminated in the unique shingled cell solar modules: instead of individual cells, narrow cell strips are used here.
The abbreviation HV stands for "high voltage"
More cells than standard modules promise higher yields even in unfavorable light conditions with HV modules, allowing MPPT charge controllers to operate optimally with their Maximum Power Point technology. Conventional solar modules only deliver low voltage in unfavorable diffuse light conditions, which is no longer sufficient to charge the battery. By increasing the number of cells and the associated increase in voltage, it is ensured that even in seasons with low light, the voltage is sufficient to capture the last rays of sunshine. Another advantage: with constant power, an increase in voltage results in a reduction of the current load on the cables. Due to the high operating voltage, cable losses are reduced, and smaller cable cross-sections can be used.
Features at a glance:
- 120 Watt solar module with new solar cell structure
- 10% higher area efficiency compared to standard monocrystalline solar cells
- Innovative shingled cell technology
- High performance in a small area thanks to compact design
- No hot spot formation
- ESG anti-reflective glass
- Bypass diodes integrated
- Junction box with IP65
- Pre-wired with 90cm and MC4 connectors (+ / -)
- Easy connection of multiple modules thanks to MC4 connectors
- 25-year performance warranty
- 5-year product warranty
New type of shingled cells - no more cell connectors needed. The mechanical connection with cell connectors is the (thermo)mechanical weak point of conventional solar modules and is eliminated in the solar modules from the BlackLine.
The cells are nested like roof shingles: the end of one cell is simply connected to the beginning of the next cell with a special polymer-based adhesive that is conductive due to metallic particles. This creates a unique parallel structure that allows for unimpeded energy flow.
The internal resistance of the solar module decreases due to this special design – this reduces internal losses and increases module performance. A space saving of up to 10% is possible because the distances between the individual cells are eliminated.
No HotSpot formation thanks to the new solar cell technology
Many modules on the market often have problems with local heat development. So-called hotspots are a thing of the past with shingled cell technology! The parallel cell strip connection not only prevents hotspots but also mitigates the shading problem. All these effects lead to an even longer module lifespan and extremely high reliability.
Thanks to the integrated bypass diodes in the junction box, the module can continue to produce electricity even in shaded or low light conditions.
Easy installation, quick commissioning and pre-prepared materials make your setup a breeze! The modules are enclosed in a sturdy high-chamber profile frame and promise maximum stability, especially under extreme conditions. Thanks to their anti-reflective glass, the modules allow significantly more light to pass through, thus ensuring higher transmission compared to other modules. The efficiency of the monocrystalline BLACKLINE solar modules is 20%. The modules are factory-equipped with a cable connection and MC4 plugs to simplify the connection of multiple modules.
Further information
In addition to a 12V battery, you also need a charge controller, which prevents overcharging or, if necessary, deep discharge of the battery by regulating the power supply. In addition, it ensures optimal charging voltage and provides the necessary reverse current protection at night.
Furthermore, the question of suitable mounting for the new solar panel often arises. Here we have various brackets, mounting systems and mounting spoilers for attachment to the motorhome, the house wall and many other options.
Please feel free to take a look at our mounting systems category.
Of course, we have already put together complete solar kits for various requirements. These kits contain not only the modules and mounts, but also all materials necessary for installation such as connection cables, adhesive, sealant and roof penetrations.
Further information can be found in the Solar Complete Set category.
Technical Data WS120BL-HVS BLACK LINE
| Rated power | 120 W |
| Max. daily yield (summer) | 600 Wh/d |
| Voltage (Umpp) | 36.0 V |
| Current (Impp) | 3.34 A |
| Open circuit voltage (Voc) | 44.0 V |
| Short circuit current (Isc) | 3.49 A |
| Cell efficiency | >20 % |
| Number of cells | 136 |
| Weight | 6.8 kg |
| Dimensions | 1395 x 430 x 35 mm |
















