Solar PV Modules – Technologies, Product Lines & Applications

Monocrystalline Solar Modules

Polycrystalline Solar Modules

Thin-Film Solar Modules

LONGi is one of the world’s leading solar manufacturers, renowned for its high-efficiency monocrystalline technology. LONGi panels feature advanced cell designs (such as PERC and HPBC – Hybrid Passivated Back Contact cells) to deliver excellent performance. All LONGi modules come with a 25-year product warranty and typically a 30-year performance warranty for long-term assurance.

Solen’s LONGi range includes all-black aesthetic modules for rooftops as well as large-format panels for commercial and utility use. Key LONGi product lines and models include:

• LONGi Hi-MO X6 435W Dual-Glass – A high-efficiency 435 W panel with dual-glass construction and HPBC cells, achieving up to 22.3% module efficiency. The dual 2× glass layers improve durability and fire resistance. With its moderate size (54-cell format) and sleek design, this panel suits both residential and commercial installations, offering excellent energy yield and low annual degradation (25-year product & 30-year performance warranty).
  
  
• LONGi 475W / 480W All-Black Monocrystalline – These 54-cell modules combine high output (~475–480 W) with full-black aesthetics for an attractive rooftop install. Using LONGi’s advanced mono PERC cells (zero-busbar cell design), they reach up to 23.5% efficiency. The all-black finish (black cells, black frame and backsheet) allows them to blend into dark roofs for a cleaner look. Despite the elegant appearance, they deliver robust performance (excellent low-light behavior) and come with 25-year product & 30-year linear power warranties. These panels are ideal for residential and commercial clients who value both output and appearance.
  
  
• LONGi 640W 72-Cell (Silver Frame) – A large-format 640 W module designed for commercial and utility-scale projects. This panel uses 72 monocrystalline half-cells with PERC and HPBC technology to achieve ~23.7% efficiency. Its elongated dimensions (≈2.38 m x 1.13 m) and robust 35 mm aluminum silver frame are engineered to withstand harsh weather (wind, snow). The high power rating per panel means fewer modules are needed for a given system size, which can reduce installation costs in large arrays. (25-year product warranty, 30-year performance guarantee apply here as well.)
  
  
• LONGi 645W / 650W Bifacial Dual-Glass (72-Cell) – These ultra high-power LONGi panels (645–650 W) feature bifacial mono PERC cells and a transparent dual-glass design, allowing them to capture sunlight from the rear side for additional energy generation. In high-albedo environments (e.g. light-coloured rooftops or ground with snow), the bifacial gain can boost total output significantly. The LR7-72HVD-650M model boasts up to 24.1% front-side efficiency. These panels are built for maximum yield and durability – a great choice for large ground-mounted solar farms or expansive flat commercial roofs aiming to squeeze out every extra kWh. (Each comes with a 25-year product and 30-year linear power warranty for peace of mind.)

DMEGC Solar Modules

• DMEGC 450W & 455W N-Type Bifacial (Dual-Glass) – These 54-cell Infinity RT series modules use N-type TOPCon monocrystalline cells and a glass-glass construction. They achieve module efficiencies around 22.5–22.8% and can generate up to 25% more energy thanks to their bifacial design capturing sunlight on both sides. The dual 2 mm tempered glass layers provide superior durability and environmental protection (resistant to PID, fire, salt mist, etc.). With an improved temperature coefficient (~–0.29%/°C) and 25-year product/30-year linear power warranty, these panels are a solid choice for residential and commercial installations seeking high output and longevity.
  
  
• DMEGC 455W All-Black Bifacial (TOPCon) – A premium 455 W N-type module that combines advanced TOPCon cell tech with an all-black, dual-glass build. Part of DMEGC’s high-end series, it delivers ~22.8% front-side efficiency with up to 20% additional bifacial gain on reflective surfaces. This model boasts exceptionally low degradation – less than 1% power loss in the first year and ≤0.4% annually thereafter, retaining ≥87.4% of its output by year 30. The panel’s full-black aesthetics (black cells, black frame and interconnects) make it ideal for premium residential projects or commercial installations where appearance is important. (It carries a 25-year product and 30-year performance warranty, in line with its robust design.)
  
  
• DMEGC 440W Full Black (Monofacial TOPCon) – A 440 W N-type monocrystalline module with a single-glass, black-framed construction. It features TOPCon half-cell technology for 22.3% efficiency and excellent performance in both bright and low-light conditions. Unlike the bifacial models, this panel has an opaque backsheet (not glass on rear), which lowers weight to about 20.6 kg. The stylish all-black look and lighter form factor make it well-suited for rooftop solar systems (especially residential). Backed by DMEGC’s decades of manufacturing experience and a 25-year product + 30-year output warranty, it offers a blend of high-end performance and visual appeal.
  
  
• DEGC 500W & 590W N-Type Bifacial (Large-Format) – These higher-power panels target large commercial and utility-scale deployments. The 500 W module (120 half-cell, dual-glass) offers roughly 22.6% efficiency and maintains strong output even in hot climates (thanks to N-type thermal stability). The even larger 590 W TOPCon panel (144 half-cell, dual-glass) reaches about 22.8% efficiency and produces significantly more energy via its bifacial design (up to 25% gain). These heavy-duty modules (~2.28 m tall, 31–33 kg) are built to rigorous standards (ISO, TÜV certified). DMEGC’s 500W comes with a 25-year product warranty, while the 590W has a 15-year product warranty (both have 30-year linear power guarantees) – reflecting typical industry practice for ultra-large panels. In summary, both models deliver high output per panel and are ideal for solar farms or large commercial arrays where maximum power and efficiency are desired.

• Aiko Neostar 2+ 470W (Dual-Glass, Bifacial) – A 470 W module featuring advanced N-type ABC cells and a dual-glass, bifacial construction for maximum energy yield. It achieves up to 23.6% efficiency and benefits from additional rear-side generation due to its glass back (useful for light-colored roofs or ground reflectance). The panel is built for durability (both front and back tempered glass) and carries a 15-year product warranty along with a 30-year performance warranty. With 54 half-cells and a black frame, the Neostar 2+ offers a compact form factor and excellent low-light performance. This makes it suitable for projects aiming for top-tier output and longevity – for example, high-spec residential systems or commercial installations where maximum kWh yield is a priority.
  
  
• Aiko Neostar 2S 465W (All-Black Mono-Glass) – A 465 W all-black module optimised for both efficiency and aesthetics. It uses the same N-Type ABC cell technology but in a mono-glass configuration (glass front with a black backsheet) – resulting in a lighter panel (≈20.6 kg) with a sleek uniform look. The Neostar 2S delivers up to 23.3% efficiency and has excellent partial shading tolerance due to cell-level optimization, which is ideal for real-world rooftop conditions. This model’s design and innovation have been award-winning – it was recognised with industry awards in 2023 for both its technology and design. Backed by a 25-year product and 30-year performance warranty, the 2S is an outstanding choice for residential solar arrays or commercial projects that demand high performance without compromising on visual appeal.

Our module range encompasses the latest monocrystalline technologies and high-efficiency product lines to suit any project scale. Whether it’s a space-efficient rooftop system using sleek all-black panels, or a large-scale commercial/utility installation maximising output with bifacial dual-glass modules, customers can find a solution with top-tier performance, robust warranties, and proven reliability. Each module type – from advanced N-type TOPCon and ABC panels to traditional mono PERC – offers distinct benefits, ensuring installers can select the optimal panel for residential, commercial, or utility applications while trusting in long-term energy production and durability.