I had to throw them away. I've been using them for a few months and was initially annoyed by the slippery plastic which causes the alligator clip to rotate 90 degrees inside the plastic case if not just squeezed. I then spent 2 days trying to find a bug in my software on the board that was powered by these terminals and it turned out that the ground wire wasn't conducting very well leaving me with huge ground loops. I found 2 other wires not connected at all. It's cost me a fortune in wasted time.
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