We tested and reset these to factory new settings, they work and look like new. These are ideal for someone who wants to build a simple small yet reliable solar system. Using 3 or 4 x 72 cell panels or 4-5 60 cell panels you can build a solid 700W solar system that you can simply plug into any 120V outlet making it plug and play. This is a positive ground unit, which is preferred for some Sunpower panels, but works equally well with other panels. The item “SMA Sunny Boy SB700U SB-700U 700W 120V Solar Grid-Tie Inverter Pos ground” is in sale since Wednesday, September 26, 2018. This item is in the category “Home & Garden\Home Improvement\Electrical & Solar\Alternative & Solar Energy\Chargers & Inverters”. The seller is “compuhans” and is located in Agoura Hills, California. This item can be shipped to United States.

• Model: Sunny Boy
• MPN: SB700U
• Brand: SMA
• Not Included: Power Cord/ Cables/ Accessories /Anything Else Not