The light is great! But the GlowRight Hand Sensor was dead on arrival. I followed the instructions carefully, multiple times, to no avail. What’s very disappointing is that I have not been able to get a refund or a replacement from “Customer Service” despite 14 email exchanges (!) including a video of the “problem” (I’m bewildered how a video of a dead sensor could be helpful?) Go for the purchase if you have money to spare, but otherwise do business with a company that stands behind its products.