A free program for Android, by ADQUANTUM LTD.

Are you looking for a casual and fun game to play with your friends and family? Do you want to escape from reality and enjoy a life of peace and tranquillity? Then you should definitely play the Idle Light City! It is a brand new game where you can tap and run a lightbulb factory and procure as many bulbs as you can. 

Seems random, but it should be fun. You can unlock new buildings so as to light them up – and therefore earn money. By climbing to tycoon level (electricity tycoon), you can help stir town growth.