Review on 🔧 Ultimate Precision: WayinTop Adjustable Voltage Controller for Optimal Control by Gary Newman

So I ordered a 3 pack and the first one I grabbed was good so I put it in my circuit. About a week later I needed the next one and that's when I found that the two remaining items were missing a screw block for attaching wires. This is exactly what another review described: 2 bad items paired with 1 good item in a 3 pack. Coincidence?. I'll let you decide. Worst of all, two without a screw block won't work at all, even soldering wires directly. The two bad ones were sent back for a partial refund.