At the meeting, she offered an illustrative example involving three fluorescent light bulbs: one cost $1 and was expected to last two years; another cost $5 and lasted eight years; the third cost $2 and lasted two years, but used 30 percent less electricity... "When I ran the actual numbers, including real costs of electricity for all of our facilities around the world, plus labor and disposal costs... I showed them that the cheapest bulb would cost us $50 million more than the most efficient bulb."