If only the absolute best will do, check out NiteRider’s Digital Extreme headlamp, which features a microprocessor-controlled light with four power settings and three signaling modes (SOS, safety flash, and strobe beacon). A rechargeable, 4-amp nickel-metal hydride battery no bigger than a deck of cards powers the unit. A headband for the light and a belt clip for the battery are included, as well as a weatherproof 4-foot cord that connects the power source to the light. About $260.
NiteRider’s Digital Extreme
NiteRider's Digital Extreme