Carpark space indicators
have you ever gone to a sheltered carpark, looking around for a place to park? It can be very frustrating I know, especially if you are in a hurry. That is why I found that these empty carpark lot indicators are a boon. All you have to do is look for the green LED lamp above a lot that shows that it is empty. When you park your car in this lot, the LED changes from green to red, so that people from afar can see that it is occupied. This is a very good invention and I must say that it has saved me lots of time cruising around looking for a parking lot. Whoever invented this simple but effective solution is a genius.