They were delivered as promised, all parts were included, they are very strong and very easy to install. 1 star deducted because 1) Cables from the controller to the batteries could be longer. It was not possible to hang the controller in the most optimal place. Another 4 feet wouldn't hurt. 2) Controller documentation could be more descriptive for error codes. Just gives you a line of what it is but not what it actually means or what to do to fix it. In general, once installed, it works great.
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