The Topeak TailLux 100 USB (Red/Yellow) is a powerful dual-color rear light engineered for maximum visibility and reliability. Equipped with nine ultra-bright LEDs producing a 100-lumen spot/flood beam, it ensures you're seen from any angle during day or night rides. Featuring four lighting modes-Constant (3 hrs), Blinking (30 hrs), Blinking + Constant (5 hrs), and Constant + Blink Sequence (10 hrs)-this compact light adapts to all conditions and ride durations. The USB Type-C rechargeable 3.7V 700mAh Li-Ion battery fully charges in 3-4 hours, providing long-lasting illumination. The bi-directional silicone strap allows tool-free attachment to aero or round seatposts (25.4-34.9 mm), seatstays, Topeak bags, or helmets, while its IPX6 waterproof polymer body ensures dependable performance in heavy rain or dirt. Lightweight, durable, and safety-focused, the TailLux 100 USB combines high visibility with Topeak's signature engineering for commuters and performance cyclists alike.Ultra-Bright Output: Nine super-bright LEDs deliver up to 100 lumens for superior rear visibility and safety in both day and night riding conditions.Flexible Lighting Modes: Choose from four beam patterns-Constant, Blinking, Blinking + Constant, and Constant + Blink Sequence-for customized illumination.USB-C Rechargeable Power: Long-lasting 3.7V 700mAh Li-Ion battery recharges in 3-4 hours via USB Type-C, providing extended runtime and convenience.Versatile Mount System: Durable silicone strap mounts bi-directionally on aero or round seatposts, seatstays, Topeak bags, or helmets without tools.Weather-Resistant Design: Built from engineering-grade polymer with an IPX6 waterproof rating for all-weather durability and consistent performance.Manufacturer Sku: TMS093RYTodson Sku: 65002093RY