I purchased a handful of these to wire up some (LED panel) light fixtures that fit in a drop ceiling. Everything went well. Everything about these power cords is well made. The multi-strand wires are copper and appear to be 16 gauge as advertised. The individual wire covers and the outer cover are all of adequate thickness and strength, and the bonding between the outer cover and the plug is good. I expect these wires to last at least as long as the lights.
Rating: [4 of 5 Stars!]