Suffice to say these bulbs don't last anywhere near their 7 year supposed life nor do the earlier CFL's. I made a habit of marking the install date on these 'new' energy saving bulbs when I started to replace incandescents with them some years back. Although the LED's carry a 'supposed' warranty, who's going to save a receipt for a pack of light bulbs and then spend more than the lightbulb cost to get a warranty replacement? I wouldn't be surprised if energy savings did not add up to the extra cost of LED's over incandescent bulbs...