FOSSIBOT SP420 Pro Solar Panel

FOSSIBOT SP420 Pro Solar Panel

The FOSSIBOT SP420 Pro is designed for efficient solar energy harvesting while travelling, outdoors or as an emergency power source. With a peak output of 400 W, a bifacial design and conversion efficiency of up to 25%, it makes effective use of available sunlight. Its foldable design and 9 kg weight make it easy to transport and store, while the aluminium frame enhances durability during field use. The panel also features an IP67 rating, bypass diodes to reduce the effects of partial shading, and standard MC4 connectors for broad compatibility with power stations.

Energy harvested from both sides

The double-sided design captures light falling on the front and reflected light reaching the rear surface, allowing an additional 10–15% of light to reach the cells. This helps make better use of the installation site, particularly where the surroundings reflect sunlight effectively. The SP420 Pro can therefore harness more available light than a single-sided panel.

Up to 400 W of power and 25% efficiency

The high-efficiency cells provide solar energy conversion efficiency of up to 25%, helping make better use of incoming light. With a peak output of 400 W, the SP420 Pro is a power source for compatible portable power stations used off-grid. Its open-circuit voltage is 39.1 V, allowing it to be matched to the specifications of the power system. The combination of high efficiency and output supports effective recharging while camping, travelling in an RV or powering devices in the field.

Durable design for travel

A durable aluminium frame helps protect the panel from impacts and the demands of frequent transport. Thick plastic corner guards reinforce areas particularly vulnerable to contact with the ground or accidental impacts. The layered construction is designed for reliable performance in demanding outdoor conditions, from use in a garden or campsite to longer trips involving regular folding, carrying and setup in different locations.

Foldable and easy to transport

Despite its high output, the SP420 Pro weighs only 9 kg. Unfolded, it measures 2765 × 790 × 21.4 mm, providing a large surface area for capturing sunlight. When folded, it measures 691 × 790 × 87.4 mm, making it easier to fit in a car, RV or camping-gear storage space. The foldable design combines a large working surface with a practical transport format.

Safer operation in shaded conditions

Part of the panel may be shaded by a tree, vehicle or other obstacle when used on varied terrain. Bypass diodes help reduce the risk of overheating in shaded areas of the module. The Bypass Diode Shade Safe solution supports safer, more stable operation when light does not reach the entire panel evenly. This is useful in the field, where an unobstructed location cannot always be guaranteed throughout the day.

Ready for outdoor conditions

The fixed stand positions the panel at a 35° angle and provides stable support on grass, gravel or uneven ground. The IP67 rating and sealed connectors enhance resistance to dust and water. The panel operates at temperatures from -10°C to 70°C, making it suitable for a wide range of weather conditions. Standard MC4 connectors ensure compatibility with approximately 90% of compatible portable power stations, making it easy to integrate the SP420 Pro into a mobile power system.

Included in the set

• FOSSIBOT SP420 Pro solar panel
• Carrying bag
• MC4–XT60 solar charging cable
• User manual

Specifications

• Manufacturer: Fossibot
• Model: SP420 Pro
• Maximum power at STC: 400 W
• Panel type: Monocrystalline
• Conversion efficiency: Up to 25%
• Maximum power voltage (Vmp): 32.6 V
• Maximum power current (Imp): 12.3 A
• Open-circuit voltage (Voc): 39.1 V
• Short-circuit current (Isc): 12.5 A
• Connector: Standard MC4 connector
• Weight: 9 kg
• Dimensions, unfolded: 2765 × 790 × 21.4 mm
• Dimensions, folded: 691 × 790 × 87.4 mm
• Operating temperature: -10°C to 70°C
• Number of panels: 4