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Welcome to everyone. Today I am going to talk about the ___ lighting technologies. Now what does it mean it means that the there are spectrum of energy saving light bulbs and today I'll introduce three of them. They're are hollagen(?), C F L and led(?) bulbs ___ the instinct(?) technologies that give the light bulbs intrinsic ___ and energy saving properties. ___ now to start from hollagen(?) bulbs they're essentially high technology version of the early incandense(?) filament light bulbs. The incandescent technology was actually invented by Thomas Edison in 1879. High efficient hollagen(?) will generate saver approx 30 percent.