The 40W Solar Panel from X-Dragon is a high efficiency module

40W Solar Panel with Controller40W Solar Panel with Controller

The 40W Solar Panel is from X-Dragon and  works with dual-port operation. It comes with a 5V/2Amp USB port as well as an 18V/2Amp DC port.

The double-port output power 2 devices simultaneous.

The 5v/2Amp output operates your USB devices.

The 18V/2Amp output is meant for your laptops and other devices.

The 40W solar panel operates with a sophisticated Solar IQ.

It is RoHs, CE,  as well as FCC certified. Operating with with short circuit and surge protection technologies, it keeps devices operational and safe.

This is a foldable 40W solar panel with a peak power at 40 Watt.

They build it with SUNPOWER  cells from the USA. It comes with an efficiency of  23.3%.

The 40w solar panel package contents


                           A 40W  X-Dragon folding solar panel.

10 In 1 Connector & Cable10 In 1 Connector & Cable.
SAE & Alligator ClipsSAE & Alligator Clips.
Car Lighter Power AdaptorCar Lighter Power Adaptor.
USB Output PortUSB Output Port.

Carabiners for attaching and to carry.

A controller with 2 outlets. Also The solar IQ operation for safe and high operational output.

40W Solar Panel Specifications

Solar panels peak power:                                                                                                 40W.

Transformation efficiency:                                                                                    22%-25%.

OutPut:                                                                                 USB 5V2.8A /DC18V 1.6A(Max.)


Folded size : 265x160 x70mm

                10.43x6.30x2.76 inch.

Unfolded size: 680x530x5mm


Net weight:      1157g/40.80oz.

What will this 40w solar panel charge?

With the 5V USB port we can charge; Smartphones, Tablets, and iPads. Also mini, external battery packs, and other 5V USB devices. 

With the 18V DC port we can charge; 18V2A laptops, 12V car battery, and other 18V2A DC-powered devices.

Controller40W Solar Panel Controller.

Controller and Solar IQ Technology

The 40W solar panel has a built-in controller, and two output ports. One is for 5V USB's and the other is for 18v devices.

You can charge 2 devices at the same time.

It is  built-in chip provides for solar IQ .It adjusts current and voltage for max output.

A built-in LED gives indication of what stage of charging and also when completed.

The 40W solar panel comes with safety protection

Safety ProtectionSafety Protection


  • Double Port output.

  • With IQ technology you get max operation.

  • High-efficiency power conversion rate, with an efficiency of up to 23.5%

  • The foldable 40w solar panel is easy to carry. Carabiners ensure easy attachment to backpacks.

  • The special design makes it easy for both outdoor and indoor use.

  • The manufacturer uses premium materials and circuitry. This gives lifetime reliability

  • It has ABS coating, to ensure waterproof and anti-corrosion operation for many years.

  • The unit gives a fair charge during cloudy and shady conditions.


Some people complain the module is a bit heavy when backpacking.

Some facts to mention about the 40w solar panel

One of the bests around, and brilliant customer service. 

It is better to turn off a laptop before charging. That is because some laptops need a large current when operating.

It is best to charge a large battery that is compatible with this of a laptop.

With larger voltages this product will reduce the voltage drop. So the large voltage would not damage the smaller devices.

Cover the solar controller when in the hot sun to prevent heat damage. 

You can use  a cloth or a towel or something.


With the 40W Solar Panel you get an 18 months  warranty. Controller not included.)

In a conclusion

With This X-Dragon 40w solar panel you get a combination of power and portability.

When you use the solar panel it keeps you going for long periods. 

It has a with a very reasonable per watts price.

 If you purchase a product through a link on this page, I do get a small   percentage  of commission at no extra cost to you.

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