Blue Color HTTM Series Sensor Capacitive Touch Switch Button Module PCB| | - AliExpress
LUMI Smart WiFi Touch Switch 4 Way Button (Golden Frame) Black : Amazon.in: Home Improvement
Capacitive Touch Switch Button RGB LED Sensor Module HTTM DIY Kit Blue Red Green Yellow Colorful Color Anti interference 3V 5 6V|Switches| - AliExpress
The Complete Guide To Touch Switches | RS
Ulincos Touch Switch UT19Z1 Latching Switch DC 6V to 24V, Blue LED Always On, Suitable for 19mm 3/4" Mounting Hole: Amazon.com: Tools & Home Improvement