I did a presentation at the Garlic and Arts Festival in Orange Massachusetts this past weekend on home energy efficiency. For it, I prepared a slide comparing light bulb costs. The title of my slide on the topic became "Congratulations LED's! You Did It!" Why? On Amazon, you can now by LED's that are so cheap that they pay themselves in about 6 months! Here is a chart that shows off all the details:
I created the above chart before I new about the proposed November electrical rate increase (see previous post). If rates go up to 23 cents per kW the TCP bulbs pay for themselves in 4.7 months instead of 6.4.
Links to purchasing bulbs:
GE Incandescent (Amazon 4 Pack)
GE CFL (Amazon 8 Pack)
TCP LED (Amazon 6 Pack)
Philips LED (EFI Single Bulb)
PDF of comparison chart