This Square Silicone Button PWM Controller is a satisfyingly-squishy, easy-to-wire PWM output button controller with three color power-adjustment statuses in red, blue, and green. A simple way to add a three-cycle power/PWM button and a colorful  to your project. These were originally designed for  in wearable thermal vests, but we can think of more than a couple of ways to hack this for a DIY project such as simple 12V lighting or fan control.

Note that this is a three-cycle button, not an on-off switch! Also, the internal LED is not connected to the switch - its independent and is an indicator only.

The red and black wires are the power input: connect to 3.6~12VDC power, red positive and black ground. The blue and black wires are then the output power, blue positive and black ground.

Press and hold for two seconds to turn it on, and the button will light up red for full-strength 100% PWM. Press the button again for 70% PWM, the button will light blue. Press again for the third low green level at 35% PWM. Long press for two seconds to turn everything off.