What are energy efficient light bulbs?
Energy efficient bulbs is a term to describe the light bulbs that consume less energy that the old incandescent bulbs do. The most efficient bulbs in the market are called Compact Fluorescent Light (CFL) bulbs. The difference between the two technologies is that the old incandescent bulbs used a thin filament which was heated when electric current passed through it. Thus, due to the heat it produced light. On the other hand, cfl light bulbs, use a phosphor coted tube filled with gas to produce light. When electric current passes through the gas in the tube, it produces UV rays which excite the phosphor coating and emit visible light. Comparison • Energy ConsumptionCFL bulbs have a higher percentage on converting electricity to light (17%-21%), whereas incandescent bulbs convert only the 10% of electricity into light (the rest is radiated as heat). In addition, energy efficient light bulbs produce more light (called lumens) per watt, which is around 60-72 lm/W whereas incandescent bulbs
