This light was a life-saver and helped me through my difficult nighttime miles and ultimately finish my first 100 mile race! It was such a hit that many of my H.U.R.T Ohana and other runners around the globe at our race have since taken interest and bought these lights! GENIUS product-thank you so much for helping illuminate our paths to make even the most challenging courses more manageable. Wishing your company continued success! Thank you!