What does rectified or "full wave" mean?
LED Christmas lights are available in two types: rectified and non-rectified. Non-rectified LED string light sets flicker or turn on and off at the rate of 60 times per second. Although this is very fast it is detectable by the human eye. The flickering or strobing effect is especially pronounced when the lights or the person viewing the lights is in motion. With the exception of some of our novelty Christmas lights, all of our LED Christmas lights are fully rectified, full wave and flicker free.