1.Full-flat ,Auto-reset Switch 2.LED Indicator 3.Over-long Life 4.0.5cm ... improved the using life of the switch(100,000times)Totally-enclosed Fast Connector1)Fast connection way , no need screwdriver , saving ... opitional color2.Indicator of switchLight when switch-off ,indicator the position of the switch in dark.3.Structure of switchCombined ... to 100N, is three times as many as GB standard