Well Buying PS001W Series Push Button Switch Well Buying PS001W Series Push Button Switch is LED illuminated in blue, green, red, white, and yellow (2-color versions available). The PS001W Push Button Switch features a snap-in panel mount installation and is SPST, momentary. Well Buying has designed the Push Button Switch for a long operating life of 50,000 cycles and a contact rating of 0.1A/30VDC.