This high efficiency, waterproof 250W monocrystalline solar panel is perfect for permanent outdoor use to provide free electricity for charging 12V batteries to power various applications such as in a camper van, motorhome, boat, shed, farm, as well as remote applications such as telecommunications or monitoring equipment. It can also be used to provide a direct power supply for applications not sensitive to changes in input voltage / current (e.g. electric motors or pumps).

The panel is fitted with 5m of special solar cable which can work at high roof temperatures, with minimum power losses. A pair of male / female MC4 connectors are crimped on the end of cable for easy connection to other solar panels, your existing system or 6mm extension cable. The MC4 connectors can also be cut off when wiring to the screw terminals of a solar charge controller.

The long-lasting, high-efficiency monocrystalline solar cells and the tough, sealed, aluminium frame will give you years and years of consistent, free power. The waterproof design ensures that the panel can be used in all weather conditions.

This panel also features innovative 5 busbar solar cells, which are more efficient than the 2, 3 or 4 busbar solar cells used in most other solar panels, and are able to extract more power from the same surface area. This results in a smaller overall solar panel, which is ideal for applications where space is limited. These solar cells are also the best choice for applications in warmer climates, as they operate well even in high ambient temperatures.

If you are planning to use this solar panel to charge a 12V battery or battery bank: please note this panel requires a solar charge controller / regulator to charge a 12V battery. To view the full range of solar charge controllers we offer, please visit the Solar Charge Controllers category of our online shop.

Click on the Details and Specifications tab for more information about this product.

Solar panel specifications:

• Peak power: 250W
• Maximum power voltage: 20.2V
• Maximum power current: 12.38A
• Open circuit voltage: 23.9V
• Short circuit current: 13.12A
• Power allowance range: +/- 3%
• Dimensions: 139 x 99 x 4 cm
• Weight: 15.3 kg
• 8 mounting holes 9 x 14 mm
• 2 x 5m of high quality single core solar cable (6.0mm cross section)
• Male and female MC4 connectors

This product is covered by a 1 year workmanship warranty provided by Photonic Universe. We will repair or replace defective items at our discretion. For more information please refer to our Terms and Conditions.

In addition, solar cells are guaranteed to produce at least 90% of nominal power in 10 years after purchase and at least 80% of nominal power in 25 years after purchase. This warranty is provided by the manufacturer of solar cells.

This solar panel is not supplied with an installation manual as it needs to be connected to further devices such as a solar charge controller or inverter which are supplied with a manual.

If you are planning to use this panel to charge a 12V battery, we recommend purchasing one of our solar charge controllers. All of our solar charge controllers include an instruction manual with detailed installation instructions and wiring diagrams.

If you need help with installation or have any technical questions we can provide FREE support - please contact us by email or phone (see Contact Us page for more information).

The following documents are available to download:

Technical drawing of Photonic Universe 250W 12V solar panel SWD-250M (Front)

Technical drawing of Photonic Universe 250W 12V solar panel SWD-250M (Back)