I had great expectations of this product but was sadly disappointed. First of all, the light did not attract the flying insects but I had to move the entire unit while the flies were flying about. When they got zapped, I opened the bottom lid to see how the flies were doing. I was shocked that they were moving about freely! Obviously, the manufacturer is lying about the High Voltage of the coils, since at several thousand volts, even humans will not be alive when they get zapped. Please see the video of these flies moving about and judge for yourself about the product worthiness.