In order to fit in with top quality and aesthetic demand of the user, we develop AD22-22B, C, D, E, G, H double-colour lamp, position indicator, shining LED buzzer and mini short indicator, as well as design shape of AD22-22G/22GS series button and it is possible to meet all kinds of international standard Lampshade, which is made of polycarbonate with high intension and enjoying the better anti-surge performance, and bolt-type connector designed will make it safer and more convenient. All improvement will be provided to make your choice more convenient and your design perfect.