DAH Solar displayed its upgraded FullScreen 4.0 Anti-Dust modules at its booth during the event
This module technology incorporates an innovative slot-type frame, which is subsequently integrated with a specially designed metal clamp
It eliminates the use of the EPDM rubber-based clamp between 2 modules
The power output and efficiency of a photovoltaic (PV) module, critical indicators of its performance, are influenced not only by the underlying cell technology and careful selection of materials within the bill of materials (BOM) but also by innovations in module design. Even minor design modifications can sometimes result in substantial improvements in power or efficiency.
Against this background, DAH Solar, known for its patented frameless module designs, promoted its upgraded FullScreen 4.0 Anti-Dust PV modules, along with the latest residential hybrid inverters and energy storage systems (ESS), at SNEC 2025.
This innovative module design removes the conventional 5 mm front-side frame and incorporates a unique 128° curved edge on each side of the module. Known as the Full-Screen PV Module, this design offers several key advantages. It effectively prevents the accumulation of water and dust on the module surface, leading to lower cleaning and maintenance costs. Additionally, it delivers a power gain of up to 10.37% compared to traditional module designs.
Drawing insight from the company’s website under the product section, it has a wide range of FullScreen PV modules, starting from small sizes to large-format variants. However, during the event, the company displayed its DHN-66Y18-DG-700~725W and DHN-66Z16-DG-FS(BB)-585~625W under the FullScreen 4.0 category.
The DHN-66Y18-DG-700~725W series, featuring 132 pieces of G12R half-cells, is rated for a maximum power output and efficiency of 725 W and 23.34%, respectively. Laminated with 2 mm-thick front and rear glass in dimensions of 2,384 × 1,303 × 33 mm, this module weighs 32.3 kg.
However, the smaller version, DHN-66Z16-DG-FS-585~625W, boasts a power output and an efficiency not exceeding 625 W and 23.14%, respectively. This module is equipped with 132 pieces of half-cells.
Addressing the installation concern that comes with EPDM rubber-type clamps along the long edge of portrait-oriented FullScreen PV modules, its upgraded version incorporates a redesigned frame with special slots. Thanks to these special slots, integrated with its specially designed clamp, the potential risk of a loosening clamp along the A-side, due to high winds or inadequate tightening torque, can be avoided. In addition, this new feature prevents frame cracks caused by thin walls or strong winds. The company claims this new frame design also improves the module’s high wind load withstanding capability to up to 3,600 Pa, which is beyond the normal industry standard. Besides the FullScreen module’s reliability and durability enhancements, the absence of EPDM-type clamps eliminates shading issues when the Sun’s angle is low, resulting in high power generation even in a very low tilt angle installation.
On the installation side, its innovative clamp design supports compatibility with universal self-grounding mid/side clamps. This saves grounding wire, as well as labor time, added DAH Solar.
The company also showcased its integrated residential hybrid inverters and ESS, with a safety-focused intelligent battery management system (BMS) and fire protection systems.