This circuit is used to make your home smell good. The resistor heat the oil and the fan represented by the light, is very slowly moving air through the plastic housing.
Parts list for this project:
1 - 5 volt fan
1 - 1k 7 Watt resistor
1 - 1 amp diode
1 - 5 volt zener diode
2 - stand off post for 1k resistor
Stand off post are needed as this resistor gets too hot to touch above >50°c - <100°c
