Seems like someone didn’t read the thread title. For example…Yes. LED lights have been around IN OTHER INDUSTRIES for a while, but….The first really bright bike headlight I can remember buying was from 1998. I bought it so I could ride a trail at night in the fall/winter in preparation for my cross country tour the following spring. It was powered by a lead battery that you could crush a bison’s skull with. Today, my bright USB rechargeable headlight I take on tour fits in the palm of my hand.