ADVANCED LED RECHARGEABLE DESIGN - USB rechargeable bike lights with a built-in 650mAh lithium battery for each unit. FOUR LED LIGHT MODE OPTIONS - Each headlight and taillight features a one-touch switch with four lighting modes: full brightness, half brightness, fast flashing, and slow flashing, allowing you to choose based on your visibility needs. EASY INSTALLATION - The silicone mounting straps come with two openings that securely fit around most seat posts, handlebars, seat risers, backpacks, and helmets. The straps are easy to loosen and fasten, requiring no tools for installation. MULTIFUNCTIONAL USE - Ideal for cycling, hiking, camping, or any outdoor activity. These lights also serve as emergency flashlights, making them essential for nighttime rides or low-visibility environments. BUY WITH CONFIDENCE - Committed to high-quality products, we ensure customer satisfaction with every purchase. WARRANTY - KEY WEST FLAGS offers a 1-YEAR replacement warranty on all bicycle lights, reflecting our commitment to quality and durability. VETERAN OWNED - These USB rechargeable LED bike lights are proudly sold through KEY WEST FLAGS, a veteran-owned small business. Whether you're commuting after dark, enjoying a night ride, or exploring trails, these bike lights provide essential safety and visibility.