The new lightbulbs, confusing but enlightening
on the way out. It may be confusing for a while. But in the end, your wallet will thank you. And so will the planet. Walk down today's lighting aisle, and it's intimidating Incandescents. Halogens. CFLs. LEDs. All sizes. All shapes. All colors, from warm white to a crisp bluish tint. And more to come. So read on for a tour of the ever-burgeoning bulb-land.