well this is a rikshaw a public transport and there you see the rikshaw driver has fitted a "LAHORI COOLER" which is very commonly used in pakistan it evaporates water from its walls and throws cool breeze from its fan at the front and this driver has fitted that in rikshaw for his passengers and well he can use 12 volts battery for that because its a mini cooler and thats so amazing in summer season i am really impressed and the picture source is google