Compact Fluorescent Light Bulbs
According to EnergyStar.Gov, If every American home replaced just one light bulb with an ENERGY STAR, we would save enough energy to light more than 2.5 million homes for a year and prevent greenhouse gases equivalent to the emissions of nearly 800,000 cars.
Here at Green-Trust, all 20 of our light bulbs are compact fluorescent bulbs. At 1/4 the wattage of an equivalent incandescent, it saves quite a bit of energy.
Professionally, I'm an IT Engineer (Executive Level) and Electronics Tech. Philosophically, I'm a Green Conservative, and probably would have been a hippie in the 60's if I had been old enough. I live off grid, with Solar (PV), Wind, and veggie oil fueled diesel generator power, and have been teaching and living sustainable technology for over 10 years.