What are the most energy efficent light bulbs? how to be more eco-friendly around the house?

I picked up my first ever issue of Mother Earth News and I absolutely loved it. What are some small things I could do to help save the planet?

DIY Dave8 years ago
frollard8 years ago

they have the efficiency in lumens/watt and a description of each type.

'low pressure sodium' are most efficient, but put out yellow light.

led are in the middle - putting out 'whatever' colour
rickharris8 years ago
Low energy CFL compact florescent lamps will use least electricity for useful light or for decorative lights LEDS use very little energy.