Solar Crimping Tool for Solar Panel Cable with 12 Pairs Solar Connectors, 1PCS Solar Crimper, 2 PCS Spanner Wrench, Crimper Tool for 2.5/4/6mm² Solar PV Wire

I bought this for the value. I needed the tool, and this kit gave me the most connectors along with it for my money. The crimper is well made, easy to use, and the connections have so far been reliable. As a newbie to solar installation, there was one omission that took me many google and Youtube searches to learn: Which connector body, with which contact insert, goes on which cable??? I don't have the crib sheet I created in front of me, so I'm hesitant to document it here. What I remember is that the housings have a small '+' or '-' molded into them. These are assigned from the PANEL's perspective, not the battery or controller's. A MALE body gets a FEMALE contact, and vice-versa. I wish the kit included a pin extractor tool and some extra contact inserts, as I now have some useless mis-assembled connectors. Sigh. The people who sell extension cable sets package them in red/black pairs. Ignore the colors, as each wire gets a + connector on one end, and a - connector on the other. When you're connecting panels in series, you end up connecting red wires to black all the time, there's no way to avoid it.

This is a great product very easy to use and the attachments are very secure. If need to run more panels. I would buy this product, it make it very easy. For myself I would only need the ends as this tool should last a long time.

Very nice set for the money I thought it would be cheap because of the cost but it crimped very nice and solid plenty of supplies to do the job. Well worth the money

I'd give 6 stars if u could. Using this kit was easy after 2 or 3 mess ups on a small section I got the hang of it. I have made 3 pairs of 7 foot long extension cables, a pair of 3 foot extension cables, and a longer extension cable with the remaining wire I had. I still have enough connectors to do another pair of cables, I will buy more wire and connectors soon.

Instructions included are extremely basic and essentially worthless. There are no links included with / in the packaging for help or FAQs. There are 3 different size “notches” on the tool, but no info on which to use with what. The tool works and the connectors appear to comply with some MC4 standard. Once assembled, connectors seem solid and they connect to my existing solar installation. I was able to make some good connections and some bad connections - only wasted 1 pin because I used the wrong “notch”. Trial and error... Bottom-line, I was able to assemble an extension cable, but not without YouTube videos to help. I would not have been able to assemble the extension cord with the information provided in this package. I gave this product a 4 because it worked, but it is by no means a complete package - 3.5 tops