The Specialized Stix Sport Headlight is a versatile light that can be uses during the day & at night. The Stix Sport headlight has a strong, bright light to guide you at night, which can beef up your daytime visibility & safety. This tiny headlight packs a big punch, with 95 Lumens of wide-angle light that can be seen from multiple directions. Its six light modes provide multiple options for day or night, while runtime is up to 14 hours, depending on the mode you choose. The Stix is easily & conveniently charged via USB (Universal Serial Bus). Features 35 to 95 Lumens output. 1.35 hours to 13.5 hours runtime. Charge in the USB (Universal Serial Bus) port of any laptop or phone charger in two hours (no extra cables needed). Flexible mounting system works with handlebar & seatposts from 22.2mm up to 35mm in diameter, as well as most seatstays. (Aero strap mount available separately) Six modes including: Steady High, 70 Lumens Steady Low, 35 Lumens Power Surge, 70 Lumens Power Flash, 95 Lumens Disco Flash, 35 Lumens Eco Flash, 35 Lumens Red/ Green battery charge level indicator. Additional mounting options available separately.