INCREDIBLY POWERFUL 1, 100 lumen USB rechargeable bicycle light with a long range and extra wide beam in a sleek and compact design. For road and mountain use. | 9 LIGHTING MODES: (Night Use: Boost - High - Medium - Low - SteadyPulse) Walking mode for use also as a flashlight (Day Use: DayLightningFlash - Triple Flash – Zoom ) See photo # 4 for run times | EXCLUSIVE STEADYPULSEmode alerts motorists with attention grabbing light pulses while its overlapping steady beam constantly lights your way at night. DAYLIGHTNINGFLASH bursts lightning-like flashes to make you stand out on busy roads in broad daylight | BUILT TO ENDURE RUGGED CONDITIONS with durable &water resistant body and hard handlebar mount, all in a compact size &weighing only 150 grams. Convenient with fast USB recharging, Light Activation Lock for transport, & low battery indicator | DESIGNED, ENGINEERED, AND ASSEMBLED IN THE USA since 1991. Cygoliteis the proven American bicycle light brand with exclusive designs and innovations crafted into quality products that are on the leading edge of safety