One day last week was light bulb changing day...
I replaced 13 CFLs in our recessed cans. That sounds like a lot but we have 85ish cans and I wait until a bunch of bulbs go out before I start replacing them. Because of the failure rate we were getting with the Lowes CFLs I have been writing the installation date on the bulbs to see how long they last. I also need to note which room had the bulb because some rooms are used more than other.
Last night I took the bulbs to Lowes to recycle them. What a PITA and a joke. They have a bin with a door that only allows you to drop ONE R40 or maybe two R30s or regular CFL bulb. First, you place the bulb(s) in a thin plastic bag, tie the bag shut and then put in the drawer that then DROPS the bulb into the bin.

:laughing: I only heard one bulb break.

I guess the plastic bag keep in the mercury. Most of the bulbs I recycled were R30 or R40 so the breaking was mostly likely NOT the spiral bulb. A CFL R30/R40 is simple a glass enclosure around the CFL spiral bulb. If mercury was so bad, it seems using a metal container with a door that drops the bulb, might not be the best design...
The bulbs I replaced have burned out over the last few months but lets say the all burned out in 12/2013.
HD Bulbs:
When we built the house we bought R30 and R40 CFLs from HD and these bulbs have been VERY long lasting. I still have at least some R30's in a case that we bought in 2004.
I replaced three R30s and one R40 from HD last week. None of the bulbs have an installation date on them so I really do not know how long they have been in use but I would guess at least 4-6 years.
Lowes generic Bulbs:
I only had to replace three R40 bulbs from Lowes. I think these bulbs were from bedrooms so they do not get much use. I really wish I had written which room the bulbs had been installed. Anyway, The bulbs were installed on 2/9/2009, 2/9,2009 and 8/30/2009 so best case the bulbs lasted almost 3.5-4 years in a bedroom application which does not get much use. However, I won't complain about 3.5-4 years.

This brand of bulbs are very problematic. Some of them like these lasted a fair amount of time but we have had others that have not worked right out of the package and many that burned out within a few months. We no longer buy these bulbs.
Last night I was in Lowes and just happened to walk down one of the lighting aisles where the recessed cans were on display. They had different R30 and R40 bulbs on that aisle that were much cheaper than the CFLs sold on the bulb aisle. However, the lifetime on the bulbs did not seem to be as long as the more expensive bulbs. I did not have time to compare the different bulbs by cost per rated hour. Maybe my next trip I will take a look.
GE Bulbs:
Five GE R40 bulbs were replaced that had been installed in 10/30/2010, 10/30/2010, 3/20/2011, 3/20/2011, and 4/30/2011. Most of these bulbs were in the living room and kitchen which means these bulbs are running from the time we wake up in the morning until we go to bed. The lights can be on a good 15 hours a day. Getting up to 3 years out of the bulbs seems like a good life time. If we ran the bulbs on average 10 hours a day, which seems too low, 365 days a year for 3 years that is over 10,000 hours which is pretty good. The bulbs that were installed in March and April 2011 likely had over 9,000 hours. I think the lights were supposed to last around 9,000 hours.
Sylvania:
We only had one spiral 23w CFL. We have started to use these to replace the more expensive R30 and R40 CFLs. The Sylania was installed 10/30/10 and I think it was in the laundry room where the lights are left on for long periods of time in spite of me turning them off all of the time.

While these lights are not used as much as the kitchen and living room the bulb seems to have lasted its designed lifetime.
We have some small tube FL's for task lighting that have been running nearly 24 hours a day since 2005. Only ONE of those bulbs has burned out. :shocked: The only time the lights have been off is when visitors turned them off one night and during a few power outages. Pretty danged impressive. The can lights on the porch and floodlights are all CFLs. I think I have replaced one of those since 2005. Now, the lights do not get used much, but they are outdoors in the weather and I am surprised they have lasted this long. The flood lights should have been regular bulbs but the electrician installed a bunch of R30 CFLs I had left in the house. I said what the heck, lets see how they work. :shocked: They are not the brightest and these are the old CFLs that take a while to warm up they are cheap to run and they get the job done.
Later,