The best and most expensive is the Lupine Piko 5. Gloworm out of New Zealand, Ay Up , and the many Magicshines and clones. Kogalla is not a new or novel light. Lower cost and perhaps better value are Zebra H600 and the Fenix HL60R. I used to compete in 24 hour mtn bike races so that is why I used the top end ones. I ran the Lupine Piko on my helmet and a Gloworm XS on my bar during my last race.