Giolit LED bulb were promised to work 10 years and was given 5 years warranty. This company sells Giolit LED Bulbs over most Internet online websites. Bought three from Snapdeals.com. They blew out in a week, all three. Snapdeals.com says go to seller. While Giolit never response to email or calls. This was my first experiment using the efficient LED bulbs but Giolit totally failed me on that. May be avoid purchasing any such cheaper bulbs online.