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Design of this kind of bike lights,its function has two kinds, one the night before and after the formation of by sliding the lamp holder cover,two,beams of light, play according to the function of the road and the warning the car forward, Second,the night after the dock bicycle, can remove the lights on both sides,form a flashlight function ,and small volume ,easy to carry
兰州理工大学
甘肃兰州, China
施 帅,
兰州理工大学