... pushbutton switch 1.easy to set up 2.voltage:24-380V 3.contact type:NO,color:transparent 4.CE,CCC approve XB4 ... Series Pushbutton switches 1. Model 1.Only land caput pushbutton,opistho-model is color, Example:SB2 ... ,with light,self-lock,self reset,convex,waterproof... ip66 waterproof pushbutton switch XB4-BP21,spring return