Lightingshrink.coms PROCESS Patented Outdoor Landscape Lighting connectors eliminate the heat producing current reducing... intermittent human error associated most with inconsistently tightened wire connections. Simply put loosely joined wires when energized create heat which causes them to shrink. When this same connection is then DE-energized the connection cools causing the lighting connection to expand. This endless cycle of expansion and contraction can and does make loose connections literally destroy themselves in a short period of time regardless of what they are packed in.