Solar Refrigerator

Our solar refrigerator models are designed to be kitchen staples. These solar fridges run on DC power, and are perfect for use in homes, cabins, RVs, and just about any off-grid situation you can think of.

Solar Freezer

C4P’s solar freezer models are all powered by our patented compressor technology, which powers many appliances worldwide. This enables us to design larger solar freezer models such as our 21 cubic foot, while still retaining the energy efficiency of DC. There are lots of great locations for a solar freezer, and ours operate flawlessly with an automatic 12/24 volt detector built-in.

Suntye Solar Panels

Our Suntye solar panels range from 10 to 200 watts, and are manufactured from Japanese and South Korean polycrystalline solar cells. We also provide custom made panels; contact us for more information.

Solar Accessories

C4P Inc. designs and develops products which use or benefit from solar energy. Our in-house development team handles every stage of design, and our factories produce a variety of products, including C4P’s patented 12 volt compressor, which powers many appliance brands worldwide. Our compressor is one of our many products that are developed and sold as OEM for global companies.

For a list of solar accessories that we carry such as batteries, charge controllers, etc., see our shop.


Solar Store


Our store features products from Samlex America, Magnum Energy, Midnite Soar, Morningstar, Outback Power, and more. We also carry our own brand of Suntye solar panels, along with our Voltray and SunStar brands of solar refrigerator and solar freezer products.

Voltray and SunStar Major Appliance Limited Warranty

Any Warranty Claims for the Voltray and SunStar Major Appliance must be made within the Warranty period from the first owner and is not transferable.

Any warranty claims within designated service areas will be fulfilled by a C4P certified technician through in-home service. A deposit must be made prior to all service calls for in-home warranty service. In the event that a service technician determines that the causes of any issues are resultant of failure of warrantied parts, then all deposit will be refunded after service is completed. If the service technician determines that the causes of any issue are resultant of improper use or maintenance of the appliance and of no fault of the manufacturing quality of parts, then the claimant may choose to service the appliance at the own expense.

In the event that the claimant resides outside designated service areas, the claimant may, at their own expense, deliver their appliance to a VoltRay service center for diagnosis. C4P Inc. will determine the appropriate measures for repair and, at its sole discretion, replace any parts or the appliance as a whole as deemed necessary.

Any defective equipment which is to be replaced under warranty must be returned to C4P Inc. for evaluation prior to any replacement parts being issued to the claimant.

  1. C4P Inc. is not responsible for any damage(s) that occur during shipping. The claimant is responsible for ensuring that any items for return are properly packaged. The claimant is also responsible for any claims made against the shipping carrier/courier in the event of damages.
  2. Claimant may request for an advanced replacement of any parts to be replaced. In doing so, the claimant will be charged for the cost of the replacement parts prior to shipping. This charge will be refunded upon if the completed evaluation finds that the defective part is covered under warranty.

Upon receipt of the failed equipment at C4P Inc., the equipment will be evaluated. The claimant account will be billed for any services required for repairs or replacement. If it proves to be under warranty, the account will be credited for the charge of the replaced equipment.

Equipment which is returned but does not fall under warranty, is not defective or has clearly been damaged through mishandling or incorrect installation will be handled in the following manner:

  1. Claimant will be notified.
  2. Claimant has 30 days from date of notification to authorize return of equipment at claimant expense.
  3. If C4P Inc. does not receive authorization for return within 30 days, the equipment will become property of C4P Inc.

Return freight charges are the claimant’s responsibility.