Product: Kona Kula 2011 Bike Headlight Front and Back Key benefits — why you need this Reliable visibility in low light and bad weather: IPX5 waterproof housing keeps the lights working during rain or wet conditions so you can ride with confidence. No more disposable batteries: USB rechargeable battery with fast charging technology delivers dependable illumination and reduces downtime between rides. Safer, more flexible lighting: Multiple modes let you adapt brightness and flash patterns for visibility, battery saving, or emergency signaling. What it is and what it does Compatibility: Designed specifically for Kona Kula 2011, includes both front (headlight) and back (taillight) units. Construction: Durable aluminum alloy casing provides solid protection against impacts and everyday wear. Waterproof rating: IPX5 — resists water jets and heavy splashes for continued operation in stormy conditions. Power and charging: Builtin USB rechargeable battery with fast charging technology for convenient, reliable recharging without battery swaps. Lighting modes: beam, medium beam, low beam, flash, slow flash, and SOS. Easy to switch modes with simple button operation. Emergency use: Can serve as a portable emergency flashlight when separated from the bike. How it solves common problems Visibility in poor weather or at night: Bright, selectable beams and flashing modes increase your visibility to drivers and other trail users. Inconvenient battery replacement: Rechargeable system eliminates frequent battery purchases and simplifies maintenance. Single product, multiple needs: Front and rear lights plus SOS and flash modes cover commuting, trail riding, and emergency signaling without extra gear. Performance and handling Robust housing and IPX5 rating maintain function during wet commutes or trail rides. Fast USB charging reduces downtime and keeps the lights ready for daily use. Simple button controls make mode changes quick and intuitive while stopped. Practical use scenarios Wetweather commuter: Ride to work in steady rain with IPX5 protection and rechargeable power to avoid being stranded with dead batteries. Evening trail ride: Use or medium beam for trail visibility and switch to flashing or tail light modes at intersections or on shared paths. Roadside emergency: Detach the headlight to use as an SOS flashlight or set taillight to steady/flash mode to warn approaching traffic while you make a . What's included and fit Front and back light units compatible with Kona Kula 2011 bikes. USBrechargeable battery included in the light units (USB cable and mount details as provided with the product). Simple, durable, and practical lighting for Kona Kula 2011 riders who need reliable, rechargeable front and rear illumination in varied riding conditions.