NOT FIT U19D1, 19mm Pigtail, Wire Connector, Socket Plug for U19C3 Push Button Switch (Pack of 2) With the wire connector, you don't need to solder the terminals, make installing very easy Save the issue of soldering to the switch, and possibly melting it as well You can replace the switch anytime by just unplugging the switch from its socket The wire connector is just suitable for Ulincos U19C1, U19C2, U19C3 push button switch For 12 months after the date of purchase, we take care of all quality-related issues with a REPLACEMENT or FULL REFUND