bicycle frog light ,bicycle signal light waterproof last 35 hours in high light high brightness and long irradiation distance bicycle frog light ,bicycle signal light, bicycle flashing light spectificationModel :D57Materia : high resilient TPR siliconsurface :coated high elastic waterproof silica gel ,solid , durable and extendproduct color :white,black,red,blue,purple,golden.Lighting color:red, ...