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The Callsun 400W bifacial solar panel set pairs two 200W N-type monocrystalline panels using 16BB busbar technology to reach up to 25.6% conversion efficiency, while the dual-module parallel design lets each half keep generating when the other is partly shaded. The transparent backsheet captures light from both the front and the rear, so reflected and diffuse light can contribute extra output, and a low temperature coefficient of -0.30%/K limits power losses as the panels heat up. Each panel measures 51.3 x 30.3 x 1.4 inches and weighs 23.8 lbs, with pre-drilled mounting holes that simplify installation on a Class B van, RV, boat, rooftop or off-grid setup. Wired in series the pair produces 400W total at 47.48V Vmp and 54.62V Voc while holding 8.43A, a combination that suits 60V-class portable power stations, and bare panels are also compatible with most solar generators and battery systems through standard solar connectors. The tempered glass front, corrosion-resistant aluminum frame and IP68 junction box are built for outdoor exposure, and the purchase is backed by 10 years of technical support plus a 25-year performance commitment of at least 84.5% rated output.
Advanced N-Type 16BB cells, dual-side power generation, excellent shade tolerance, optimized for 60V portable systems, up to 25.6% conversion efficiency
Included Components
2 x 200W N-Type Solar Panels, 1 x Manual
Unit Count
1 Count
Number of Items
1
Number of Packs
1
Power Source
Solar
Product Type
Solar Panel
Warranty
10 years technical support, 25-year performance commitment
Highlights
【200W N-Type 16BB High Efficiency】Built with advanced N-type monocrystalline cells and 16BB busbar technology, the 200 watt solar panel delivers up to 25.6% conversion efficiency. N-type cells provide excellent power generation and reliability, while the 16BB design helps reduce hot spots and microcrack risks for dependable long-term performance.
【400W Series Connection for Portable Power Stations】Pair two 200W panels in series to reach 400W total power, 47.48V Vmp and 54.62V Voc while maintaining 8.43A operating current. This configuration is well suited for many portable power stations with 60V-class solar input limits, helping maximize solar charging within supported voltage and current ranges.
【Boost Energy with Bifacial Technology】The 200W bifacial solar panel features a transparent backsheet that captures sunlight from both the front and rear sides. By utilizing direct, reflected and diffuse light, the bifacial design can generate additional energy from the rear side under suitable installation conditions, helping maximize overall solar output.
【TwinCell Anti-Shading Design】The 200W solar panel features a dual-module parallel design that divides the panel into two independently operating sections. When one section is partially shaded by trees, buildings or other obstacles, the other section can continue generating power. This design helps reduce the impact of partial shading and maintain more consistent energy production.
【Compact Design for RVs, Vans & Off-Grid Use】Each panel measures 51.3 × 30.3 × 1.4 inches and weighs 23.8 lbs, delivering strong power output in a compact footprint. This 200W solar panel is ideal for Class B vans, RVs, marine applications, rooftops and other space-conscious off-grid solar systems. Pre-drilled mounting holes make installation with compatible mounting hardware straightforward.
【Reliable Performance in Hot Climates】Engineered with a low temperature coefficient of just -0.30%/K, the 200W solar panel helps reduce power loss as temperatures rise. This supports more stable energy generation during hot summer conditions and makes it a dependable choice for RVs, vans, rooftops and off-grid applications in warm climates.
【Built for Long-Term Performance】Built with tempered glass, a corrosion-resistant aluminum frame and an IP68-rated junction box, the 200W solar panel is designed for reliable outdoor use. Includes a 25-year performance commitment, with at least 84.5% rated output after 25 years.
Videos
Warranty
Includes a 25-year performance commitment, with at least 84.5% rated output after 25 years.
Frequently asked questions
Why is the actual output sometimes lower than 200W per panel?
The 200W rating is measured under Standard Test Conditions (STC), meaning ideal sunlight and temperature. In real use, sun angle, heat, shading, wiring loss and device efficiency all affect output, so power below 200W is normal and does not indicate a defect.
Why are two Callsun 200W panels in series ideal for 60V portable power stations?
Each 200W panel has a Voc of approximately 27.3V, so connecting two in series gives about 54.6V, safely within the input range of most 60V power stations. This lets the MPPT controller operate more efficiently, improving power conversion and charging speed.
Can the solar panel work with different solar generators or battery systems?
Yes, the 200W N-type 16BB bifacial solar panel is compatible with most popular solar generators and battery systems. It comes equipped with standard solar extension connectors, making it easy to integrate with a wide range of solar power setups.
What does the panel set include and how is it rated?
The set includes 2 x 200W N-type solar panels and 1 manual. The panels are rated for 25.6% efficiency, an upper temperature rating of 185°F and 60 cells each, and they are backed by 10 years of technical support with a 25-year performance commitment.
