Highly efficiency conversion

High-level 9BB Cell Design has a 23.5% Highest Conversion Rate.  Makes the solar panel have a longer service life.  Increase the cell receiving surface, thinner ribbon reduces the covered area by 22%. can charge 12V battery or charge 24/48V battery by wiring several solar panels in series.

Upgraded Design 
 WERCHTAY 300W solar panel use half-cut cells technology increases performance efficiency. Compared with the Standard module, the current is reduced by half, the resistance loss is reduced, so the heat is reduced. Besides the conversion performance is more stable and the service life is longer. Less shadow occlusion, more working area.
 Why choose 9BB？ 

A.9BB solar cells have less internal resistance loss than 5BB solar cells.
B.9BB can reduce the impact of solar panel Micro-cracks.
C.The busbar of the 9BB solar panel is thinner , the light-receiving area is larger, and 9BB can get more power.

Durable Solar Panel

Our 12V 300watt solar panels feature a corrosion-resistant aluminum frame. It can also withstand strong winds of 2400Pa and Snowload of 5400Pa. Both the IP65 junction box and IP67 MC4 connectors have excellent waterproof functions. Allows you to use it outdoors with confidence.

EASY to INSTALL 

The solar panels 300 watt has a built-in MC-4 connector, which can easily insert and pull out the solar controller.   The pre-drilled hole on the back of the panel helps install it in your vehicle, RV or other place you need it.   Each of our solar panels is tested and inspected before leaving the factory to ensure flawlessness.   If you have any questions, please feel free to contact us.

Optimal Performance in Low-Light Conditions

Equipped with bypass diodes, this 300W solar panel ensures optimal performance in low-light conditions.  Different from the old style，we have two bypass diodes ，which can minimize power drops caused by shade and eliminate hot spots, it ensures consistent output.



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