Solar refrigerators and coolers are one of the biggest energy savers for off-grid and outdoor enthusiasts.  They can run off a car 12V outlet, a 12V battery, or directly off a solar panel, or both.  They make a great companion to our EZ-PTG line of solar generators and portable solar panels.  We have models that are great for van/overlander conversions, as a supplemental fridge/freezer (they get cold enough to freeze ice cream!) in your RV, and portable coolers that are very popular with the off-road crowd.   We only have a few products listed on our website, but we carry the whole line of indel B products, which you can see here.