Compact Fluorescent Lights are the bulbs most associated with energy conservation. They can last up to 15 times longer than the standard globe bulbs, and have been manufactured to fit in many kinds of sockets.
CFL Lamp 11W in Blue Green or Red 11cm CLA Lighting
Was $22 Now $10
CFL Lamp B22 or E27 in 11W or 15W 6400K CLA Lighting
Was $24 Now $19
CFL Globe 2 Pin 28W in 3100K or 6400K Luxman CLA Lighting
Was $16 Now $9.60