The usual light bulb of glass and filament becomes a powerful emotional symbol.
The alternatives to incandescent bulbs are more expensive.
But industry experts say they offer longer life period and save money by reducing electric bills.
Usual Incandescent bulbs, which use the same technology as Edison’s old light bulb technology.It wastes most of their energy by converting it to heat instead of light.
That problem is largely solved in newer technologies like compact fluorescent lights(CFL) and light-emitting diodes (LED)s.
Demand for energy-efficient bulbs is growing among customers, incandescent bulbs still rules the market.
As per surveys , 60 percent of sales are standard incandescent bulbs, 25 percent are (CFL)compact fluorescents, 10 percent are halogen bulbs and 5 percent are LEDs(Light Emitting Diode).