multi-award winning family company

providing engineered solutions







Dimensions, Specifictions and pricing of flexible solar panels:​

Square Junction Box

Zips can be easily sewn in by your sailmaker or machinist

The Installation page has more information about how products are installed.
Our policy pages outline our Code of Conduct and policies on Warranties, Delivery, Privacy, and refunds & exchanges
120W black panel top view
no junction box, no eyelets
Junction Box underneath

(photo shows underneath of 18W white panel)

Slim junction box 

No Junction Box 
(photo shows solder tabs underneath black panel)

​​​SunPower E20® series cells were developed in the US and capture significantly more sunlight and conduct more electrical current than other solar cells.  Solar panels containing SunPower E20® series cells are the highest efficiency panel available on the market today, providing more power in the same amount of space. Efficiency refers to the percentage of sunlight hitting the panel that gets converted into electricity therefore a higher panel efficiency means that the panel can generate more power.

These cells are then used by our manufacturer in China where these panels are made.

(COMING SOON) Solar Cable Power-Distance Loss Guide

We recommend FixTech FixSeal MSP15 Adhesive Sealant

​​FixSeal MSP15 is a chemically neutral and fully elastic tough flexible adhesive sealant.  It is recommended for use in low movement structural joints in marine, automotive, aerospace, and construction applications.

It is independently tested and rated for +15 yrs UV exposure, and is resistant to many chemicals, fresh and salt water.  Shows excellent resistance to UV rays, climate changes and environmental agents.

We recommend this adhesive sealant to fix your panels to the surface of your RV.

290ml cartridges of non-yellowing white or colourfast black are available.

For more information regarding Monocrystalline technology see our PV Solar Panel Fact Sheet
For an overview of flexible solar panel installation see our Installation page

Maintenance:  The only maintenance required is cleaning with water when the panels get dusty and dirty. At this time you can inspect for damage, for example from tree branches.

Installation:  The panels are installed using Fix15 (MS Polymer) or Fix8 (Silicone) adhesive sealant or SikaFlex (polyurethane) adhesive. Not suitable for glueing onto polycarbonate or polyethylene foam surfaces.

Manufacturer's Warranty:  The manufacturer provides a 1 year workmanship warranty. 

Power output for E20® cells is guaranteed by SunPower to be at least 90% of the rated output at Standard Test Conditions (STC) for ten years. 

  Options (some are held in stock and others require special order):


Zips can be easily sewn into panels by your own canvas machinist or sailmaker.  We can provide a piece of panel to practice on.

 Colour finish​

White - standard

Black - limited stock; by special order

 Junction box

 (see photos below for examples)

Top of panel - slim or square

Underneath panel - limited stock; by special order

None. The no junction box option (special order) requires the end user to solder wires onto tinned copper tabs that come out underneath one end of the panel.  Then the wires can then be taken through the roof underneath the panel.

 Cable length (if buying with a junction box):
The standard cable length is 2 metres coming out of the junction box.  Additional cable can be ordered.

Eyelets are available on request (one at each corner, or more depending on the size of the panel) 

 Standard panel sizes are 4 cells wide.  Orders can be made for panels 1, 2 or 3 cells wide.  We have limited stock of 2 and 3 cell wide panels.

for prices go to our Prices & Purchase page.

Benefits of semi-flexible Monocrystalline PV Panels:

  • They are able to convert the highest amount of solar energy into electricity of any type of flat solar panel making them the most efficient and most dependable way to produce electricity from the sun;
  • They produce more electricity per square metre of other panels and consequently are the best choice for settings where space is limited;
  • They are thin: At only 3.0mm thick they are the perfect option for caravans particularly pop-tops that need to fit into a garage;
  • They are lightweight: (e.g. 2.4 kg for a 135 W panel);
  • Being semi-flexible (up to 30 degrees) they can conform to the roof of your caravan, motorhome;
  • They are easily installed: They are attached to the roof of your van using adhesive sealant such as non-yellowing marine grade Fix15 or SikaFlex;
  • They do not have the toxic heavy metal Cadmium (Cd) and are not hazardous to the environment. 

Solar 4 RVs Flexible Solar Panels

PLEASE NOTE: Flexible solar panels are not suitable for glueing to polycarbonate or polyethylene foam.  

Note:  protective plastic coating is still on panels in photos

Our Monocrystalline Photo Voltaic (PV) Panels are:

  • Lightweight; 
  • Semi-flexible;
  • Thin;
  • ​Easy to handle - no glass or frames;
  • Easily installed using adhesive sealant - no mounting brackets;
  • High efficiency - 20%
  • Non hazardous to the environment. ​​
For more information about our Kits go to Our Kits page
The About Us page lets you find out more about Solar 4 RVs.
The Contacts Us page provides email and phone details if you have further questions.
The FAQ page has extensive, detailed information about solar power, solar power systems and its components.
The Our Products page has an overview of our products.
For rigid solar panels go to our rigid solar panel page

Attaching your flexible solar panels

Undertake our Solar Power Estimate Calculator (SPEC) questionnaire to determine what your RV power needs are.

The Assess Your Needs page will guide you on the steps to take to determine what size system you need and what products you needs.