From Bright Things Wiki
The pThing is a generic power supply module. It will supply 3.3 V, 5 V and 12 V if fed by anything from about 6 V to 60 V DC. With one external capacitor and one diode it will handle AC as well.
|Input Voltage||6 V DC to 60 V DC|
|Output Voltage||3.3 V, 5 V and 12 V|
pThing mounted on a uThing