I would like to share my experience with Symphony Hi-cool. I bought this cooler in April 2012, due to summers in Bengaluru, it worked okay for 1 month and then due to good weather in Bangalore we did not use it.
Next year as we plug on this problematic machine it started giving issues and never started again. Its lying as an empty box now. May be due to poor quality motor or chip system. I would not recommend people to buy this at any cost.