Two flashing modes, one is to flash twice, and the other is to flash together on both sides. 3 lines One is connected to the negative pole, one is connected to the driving light wire, and the other is connected to the brake light wire.
Size 9.5*4*2.3
http://v.youku.com/v_show/id_XNzg4OTQ2MDQ=.html (Copy the URL to open the video)
The second flash method