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400W N-Type Bifacial Solar Panel

SKU: RSP400DCT-108x2-UK
£399.99 £439.99
Tax included. Shipping Policy.
Early Bird Discount! Extra 6% OFF
valid until 2026-07-10
RDCT6
Key Features
  • · Get up to 30% more energy without taking more space.
  • · Generate more power with high-efficiency N-Type solar cells.
  • · Build a simpler system with less effort, cost, and complexity.
  • · Keep generating power even when part of the panel is shaded.
  • · Maintain more stable output through heat, clouds, and low light.
  • · IP68 protection backed a 10-year warranty and 25-year output guarantee.
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Description
Includes
Specs
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FAQ
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More Power with Fewer Panels

Unlike conventional solar panels, the bifacial design captures sunlight from the front and reflected light from the rear, helping generate more usable energy throughout the day.

Up to 30% More Energy from the Same Footprint

Capture sunlight from the front and reflected light from the back to generate more energy from the same panel footprint. Best results come when installed where the rear side can receive reflected light, such as on sand, snow, or light-colored surfaces.

Capture More Light Throughout the Day

Rear-side reflected and diffused light contributes additional energy from morning through evening.

Extra Solar Harvest That Adds Up Over Time

Small rear-side gains can add up every year, especially in setups with reflective surfaces or elevated mounting.

The Right Setup Unlocks More Energy

Bifacial gains depend on angle, elevation, and surface reflectivity. Lift it, tilt it, and place it near a brighter surface so the back side can capture more reflected light.

Better Performance from Next-Gen Cells

Better Performance from Next-Gen Cells Renogy advanced N-Type cells outperform P-Type in all conditions. These N- Type cells help the compact panel generate more usable energy throughout the day while maintaining stronger long-term performance in outdoor conditions.

Highest* Efficiency

High-efficiency N-Type cells deliver up to 25% cell conversion efficiency, helping maximize energy output even when installation space is limited. *Compared to previous P-Type cells (21-23% conversion efficiency)

Stable Output in Heat

With a lower temperature coefficient than P-Type cells, power loss is significantly reduced on hot summer days or in desert climates, allowing you to maintain consistent output.

Capture More Energy from More Surfaces

The transparent backsheet captures rear-side reflected light alongside direct sunlight, adding to total energy output. Best results come from reflective surfaces and installations with rear-side exposure.

Longer-Lasting Output

Lower degradation helps the panel maintain stronger energy production over time, backed by a 25-year performance warranty.

Keeps Producing Through Partial Shade

The panels are divided into two independent power zones through a parallel design, so if one side is shaded by a vent, a tree, or a rooftop obstacle, the other continues generating at full capacity.

Designed for Reliable High-Output Systems

16BB technology improves current collection efficiency while supporting stable, long-term performance across larger solar installations.

More Efficient Current Collection

16 busbars help collect and move current more efficiently, reducing electrical resistance for stronger, more reliable output.

Built for Long-Term Reliability

Advanced 16BB design helps reduce hot-spot and micro-crack risk, supporting stable performance as the panel ages.

Flexible Mounting Solutions

Easily install Renogy solar panels on flat roofs, ground mounts, poles, or vertical surfaces, ensuring maximum adaptability for any setup.

Built for Permanent Outdoor Systems

IP68 Protection

IP68-rated protection helps withstand years of outdoor exposure across cabins, sheds, rooftop arrays, and off-grid installations.

Ready for Harsh Outdoor Conditions

Designed to withstand heavy snow loads and strong winds for dependable long-term energy production.

Reinforced for Large-System Reliability

Engineered with a thickened frame and extra-strong glass to shield against hail, falling branches, and accidental hits.

Includes

400W N-Type Bifacial Solar Panel

x 2

Specs

Maximum Power at STC
400W
Open-Circuit Voltage (Voc)
39.42V
Short-Circuit Current (Isc)
13.06A
Optimum Operating Voltage (Vmp)
34.0V
Optimum Operating Current (Imp)
11.76A
Maximum System Voltage
1500VDC
Maximum Series Fuse Rating
25A
Module Efficiency
21.5%
Operating Temperature Range
-40°F to 185°F / -40ºC to 85ºC
Dimensions
67.8 x 44.7 x 1.4in / 1,722 x 1134 x 35mm
Weight
45.42 lbs / 20.6kg
Power Output Warranty
25-Year
Power Output Warranty
10-Year
Certification
CE, RCM, TSCA, CA65

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Datasheet

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Warranty

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Frequently Asked Questions

What do I need to complete my off-grid solar power system?

A solar panel has to be connected to a charge controller to regulate current, and a battery to store the electrical power. You will need adapter kit cables to wire the solar panel(s) and charge controller, and tray cables connecting the charge controller to a deep-cycle battery.

What do off-grid and on-grid mean?

On-grid simply means solar power equipment (array or solar panel) is connected to the electrical grid, while off-grid refers to systems that are not connected to the grid and therefore store the generated power for later use. Off-grid systems are not affected by grid blackouts.

Why is my solar panel underproducing?

Solar panel performance may be hindered for several reasons. Most commonly, environmental conditions such as indirect sunlight, temperature rise, cloudy sky, and dirt and stain build-up on the top glass will cause a reduced power output.

How should I connect solar panels in my electrical circuit (series vs parallel)?

Solar panels can be connected in series or in parallel to meet your electrical circuit size and power demand. Connecting solar panels in series will have the effect of adding up their operating voltage output, while the system current output will be the same as that for one panel. While connecting solar panels in parallel will have a different effect, individual panels' operating current output will add up to be the system output current, while the system output voltage will be the same as the output voltage of one solar panel. To meet the optimum power output and system rating for your power system, you can use both parallel and series connections.

How many solar panels do I need?

The best way to gauge how many solar panels you need is to understand and define the power load needed from this system. Power is measured in Watts, and capacity is commonly measured in Watt-hours (multiplying power output in watts by the required number of hours of operation, multiplied by a safety factor of 1.5-2). Therefore, it is wise to size your battery bank first based on the minimum required capacity, and accordingly decide how many panels or how much power input is needed.

What are the Benefits of Using Bifacial Solar Panels?
  • Captures sunlight from both sides.
  • More efficient and powerful than monofacial panels.
  • Perform better in overcast weather.
  • Install in any direction

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