小的自行车灯,可以夹在衣服上
https://www.amazon.com/MapleSeeker-Running-Runners-Visibility-Lighting/dp/B09GX9BKRG/ref=sr_1_12?crid=35Z5EWA5HDC98&keywords=bike+lights&qid=1636646301&rnid=2941120011&s=outdoor- recreation&sprefix=bike+li%2Caps%2C227&sr=1-12
https://www.amazon.com/MapleSeeker-Running-Runners-Visibility-Lighting/dp/B09GX9BKRG/ref=sr_1_12?crid=35Z5EWA5HDC98&keywords=bike+lights&qid=1636646301&rnid=2941120011&s=outdoor- recreation&sprefix=bike+li%2Caps%2C227&sr=1-12