* The European lamp industry's strategy for domestic lighting: Frequently Asked Questions & Answers on energy efficient lamps* A technical description of a typical CFL circuit* CFL Intelligence* Energy Savings Calculator Compare the costs for each light bulb tight and learn how you can save money by switching to more energy efficient bulbs
==Efficiency comparison ==== References ==== External links ==* The European lamp industry's strategy for domestic lighting: Frequently Asked Questions & Answers on energy efficient lamps* A technical description of a typical CFL circuit* CFL Intelligence* Energy Savings Calculator Compare the costs for each light bulb tight and learn how you can save money by switching to more energy efficient bulbs