<br> 1.High brightness LED lights.<br> 2.Use rechargeable lithium polymer battery, which will automatically power off when fully .<br> 3.Sealed and waterproof.<br> 4.The ultra-wide-angle irradiation range provides more safety protection.<br> 5.Two fixing methods: paste installation-can be fixed on objects, strap installation-firmly installed on shapes of car bodies.<br> Product title:Bicycle tail light 7-color drone night warning light 7-color LED USB charging waterproof<br> Light color:white, blue, red, yellow, green, purple, ice blue<br> Light mode:4 modes, fast flashing - SOS flashing - always bright - seven-color gradient flashing<br> Light levels:22 light levels, three levels for each color<br> Button style:push switch, long press to turn on, long press to turn off, short press to switch gears after turning on.<br> Battery life:slow flash up to 8-10H, always bright up to 1-2H (approximate estimate)<br> :4 Pcs<br> Colour:Black<br> Material:ABS<br> Size:about 30x13x12mm/1.18x0.51x0.47 inch<br> Package Contents:<br> 4 * Bike Light<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.