umbrella by junho ko from korea

People think wating for signal is very boring.
People check the time or use mobile phone when they wating for a signal.
Umbrella is multi function that signal lamp installed in the front and clock and weather forecasts are installed in the back.
So Umbrella tell the time and weather when people wating for a signal.
How many signal lamps are in the world? Signal lamps are always on and uses many electricity.
Umbrella is use the solar energy in the day time.