800w 400w Watt 18v Solar Panels

Product Features

Full-Welding(Next generation) Minimizes hotspots for peace of mind and delivers reliable performance for over 30 years. 18V output Voltage(Next generation)Unlike 12V solar panels, you only need a single one of our 18V panels to effortlessly charge your 12V battery through a controller--a key advantage over standard 12V panels.High-quality Pure Copper Wire(New Upgrade)

Built for the heat.Our pure copper wiring stays cooler and delivers stronger current in summer than copper-clad aluminum cables.

Superior Quality and Refined Craftsmanship

Our solar panels are built to a higher standard of quality with more precise manufacturing and finishing.

Enhanced Protection

The wiring features a unique two-layer protection system (an outer UV-resistant layer and an inner insulation layer).

Item Specifications

Product Description

Q&A

 

Why is the actual power output lower than 100W?

The rated 100W is based on Standard Test Conditions (STC): 1000W/m² irradiance, 25°C, and 1.5 air mass. In real use, panel angle, temperature, shading, wiring loss, and device efficiency affect output. So, actual power below 100W is normal.

What is the meaning of 12V in the product title，Why is this value different from the voltage of the solar panel？

When you open the product page, you will see a title like "xxx Watt 12 Volt Solar Panel". The "12V" here does not refer to the voltage of this solar panel (VOC or VMP), but to the fact that one xxxW solar panel is suitable for 12V system.

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

Solar panels can be connected in series to increase voltage while maintaining the current of one panel. In parallel, the output current adds up, while voltage remains the same. Both can optimize power output.

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

A solar panel must connect to a charge controller for current regulation and a battery for power storage. Use adapter kit cables to wire the panel and controller, plus tray cables for the battery.

What if I receive a scratched or defective panel?

If you receive a scratched or defective panel, please take photos immediately and contact our support team. We will assist you with the next steps promptly.

On Jan 27, 2026 at 00:43:58 PST, seller added the following information: