[ale] OT CFL cleanup / LED light bulbs starting to become affordable

Wed Jul 3 12:22:43 EDT 2013

I'm just picking up a few 4 packs every time I visit Target, Wal-Mart, the grocery, etc…  I'm building up enough of a stash of incandescents to last me until:  1.  I'm too old to care.  2. Better technology exists.  3.  Politicians get their heads out of their rear end and quit passing dumb laws to ban proven technology/force energy conservation.
I'm guessing that those three scenarios are in order of likelihood!
Allen B.
--
Allen Beddingfield
Systems Engineer
The University of Alabama

On Jul 3, 2013, at 11:16 AM, Ron Frazier (ALE) wrote:

Hi all,

Just wanted to drop a note about some LED light bulbs I've seen recently.  As you may know, the manufacture of incandescent light bulbs is being phased out.  The best current alternative is the compact fluorescent (CFL).  These work well, and use about 1/4 the energy of an incandescent.  The problem is that they have toxic mercury.  If you break one, you have to take special steps to avoid exposure to mercury or mercury vapor.

You can find info here:

http://www2.epa.gov/cfl

I had the (not) fun of experiencing the cleanup procedure the other day.  I dropped one of these and it shattered.  I put on vinyl gloves and removed every fragment I could find.  I then wiped the carpet with a damp paper towel.  I then vacuumed, even though the epa would rather you not, since almost all the residue was gone and I knew there were shards of glass in the carpet.  I then threw the vacuum bag away (it needed it anyway).  Finally, I ran the whole house attic fan to ventilate the house for 1/2 hour.  They recommend venting for several hours if practical.  What a pain.

There are no really good alternatives.  However, LED light bulbs are starting to become affordable.  I saw an ad from newegg that said they have 30W equivalent bulbs in a 6 pack for about $ 5 ea.  Also, I was surprised to find that there are some interesting alternatives now appearing at home depot and lowes.  Home depot has two products from CREE.  One is a 40W equivalent bulb for $ 10 and a 60W equivalent for $ 15.  I'm waiting for affordable 100 W equivalents, but they're still about $ 45.  So, we're getting there.  I moved to all CFL a couple of years ago.  I'm not quite ready to jump to LED yet, but maybe the prices will keep dropping.

If you decide to buy some of these, there are at least three things you need to consider other than cost.  First is size.  Some of these are longer and / or wider than standard bulbs.  Second, are they omnidirectional and do they cast shadows?  Some bulbs have part of the bulb structure obscuring the bulb and would cast shadows in certain areas.  Third, are they dimmable?  Dimmability is a big advantage that incandescents have that most fluorescents don't.  Some of the new LED's are dimmable.  But, look at the specs.  Some of them require new advanced dimmers.  The CREE ones I mentioned, however, are dimmable with conventional old style dimmers.

Also, the manufacturers like to play games with longevity ratings.  One will say 10 years, another 20 years, etc.  This is useless.  You have to find how many hours per day they're figuring.  Usually, it's 3, sometimes 6, etc.  The Philips CFL's I just bought are rated at 11 years, at 3 hr / day.  (The bulbs in my living room and work area run much more than 3 hr / day.)  If you do the math, that works out to 12,000 hours.  The cheaper CFL's may be rated only for 8,000 or 10,000 hours.  A LED should last 20,000 hours or more.  There are 8760 hours / year, so if you're running a bulb 12 - 24 hours / day, expect lots fewer days out of it.

Home depot will recycle CFL's for you.  Lowes might but I don't know.  I don't know of any easy way to recycle bigger circular or straight fluorescent tubes.  I wish I did, as there are a few fixtures in my house that use these.

Has anyone else had experience with the new LED bulbs?

Sincerely,

Ron

--

Sent from my Android Acer A500 tablet with bluetooth keyboard and K-9 Mail.
Please excuse my potential brevity if I'm typing on the touch screen.

(PS - If you email me and don't get a quick response, you might want to
call on the phone.  I get about 300 emails per day from alternate energy
mailing lists and such.  I don't always see new email messages very quickly.)

Ron Frazier
770-205-9422 (O)   Leave a message.
linuxdude AT techstarship.com
Litecoin: LZzAJu9rZEWzALxDhAHnWLRvybVAVgwTh3
Bitcoin: 15s3aLVsxm8EuQvT8gUDw3RWqvuY9hPGUU

_______________________________________________
Ale mailing list
Ale at ale.org
http://mail.ale.org/mailman/listinfo/ale
See JOBS, ANNOUNCE and SCHOOLS lists at
http://mail.ale.org/mailman/listinfo