one bulb

I passed a Banana Republic in a shopping mall today. It's window bore the slogan "one bulb at a time" with the exhortation:

"If every US Household switched just one bulb to LED, the pollution reduction would be equal to removing 800,000 cars from the road. Let's brighten up the planet together."

The warmth in my heart when I read this was matched only by the warmth of the light on the display. The display was lit by a halogen reflector bulb.