1 Three-line perfect dual flash2 Fashion and lightweight， simple to installColor: blackMaterial: ABS + rubberSize: about 40 x 40 x 22mmInstallation aperture: about 23-24mmWiring method: Connect the two lines of the three in turn signal light switch， which control the left and right turn signal lights. When using dual flash， first open the dual flash switch， then turn on the turn signal switch will be ok， if you want it normal， then turn off the dual flash switch.1 x Switch<br /><img src="http://img6.eachbuyer.com/x9/p100/bv591_1.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv591_2.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv591_3.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv591_4.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv591_5.jpg" / noproxy>