Lezyne Micro Drive Headlights (Pair) Compact, durable and heat-dissipating CNC machined aluminum construction. Ultra high-output leds delivering up to 400 lumens Optional overdrive race mode toggles between overdrive and economy modes only. Mode memory function returns to selected mode after turning off Lens with built-in side visibility. Integrated cable-free recharging USB stick. Advanced Li-Polymer battery for superior Run Time