This listing is for a silver-grey EcoSolarCool DC solar refrigerator. Please click on the second image above for full product technical specifications. * It is reported to be most efficient when it was tested along side two of the other major brands also currently listed on Amazon. The comparison testing was conducted by a large solar supply distributor on the west coast. * They are energy efficient and can save you money on your power bill*. You will require a solar panel and battery to operate this refrigerator. Please contact us stating the city where your fridge will be used and we will advise on the necessary solar panel and battery required. * Reported to use as low as low as 110w solar panels to operate*. Energy consumption can vary dependent upon use. * All US sales are subject to 0% Sales Tax (for all sales outside of the State of Delaware).