Feature‎:‎This solar powered tail light for bicycles is the perfect answer to night time ridingWhether your long distance biking or watching the kids in the street every biker should own one for safety reasonsThe use of high‎-intensity‎,‎ high light transmittance of special tempered glass and high performance solar ultraviolet radiation‎-resistant TPT EVA sealing material‎,‎ laminated together by professional equipmentThere‎'‎s no need to worry about running out of batteries ‎- just 2 hours of charge in the sunshine will give you 4 hours of constant light and 8 hours in flash modeAdd an environmentally‎-friendly glow to your bike with this solar powered‎,‎ clamp‎-on LED tail light which has 3 modes‎:‎ quick flash‎,‎ flash and constant2 different flashing modes and 1 steady on settingSpecification‎:‎Powered‎:‎Solar Materials‎:‎ABSSize‎:‎ Approx‎.‎70×55×20mmMounting Placement‎:‎ Seat postSeatpost diameter‎:‎ 22‎-30mmAppearance color‎:‎ Black + RedLight Color‎:‎ Red LightLight Bulb‎:‎ 2 LEDPackage Included‎:‎1 X Solar Powered Bicycle Tail Light Notes‎:‎1‎.‎ Due to the difference between different monitors‎,‎ the pictures may not reflect the actual color of the item‎.‎2‎.‎ Compare the detail sizes with yours‎,‎ please allow slight difference due to manual measurement‎.‎Thanks for your understandings‎.‎