Nutrend via Newegg offers the Sunforce Coleman 18-watt 12-volt Solar Panel Kit, model no. 58033, for $50.99 with free shipping. That's $4 under our April mention and the lowest total price we've seen. (It's a current best by $5.) This solar panel can be used to power cars, RVs, boats, tractors, ATVs, and electric fences, among other things. Deal ends February 29.