In message , Cydrome Leader
writes
In sci.electronics.repair Capitol wrote:
Cydrome Leader wrote:
In sci.electronics.repair Jerry wrote:
In sci.electronics.repair Cydrome wrote:
In sci.electronics.repair wrote:
On 1/2/2015 6:56 AM, Arfa Daily wrote:
EE Times article that came to me by email today
http://www.electronics-eetimes.com/e...out-led-lighti
ng.html?cmp_id=7&news_id=222923405
Arfa
I've never had a CFL failure that I could trace to the CFL.
It's always the electronics driving it. A power glitch can take
out a LED just as easily as a CFL.
I've had a couple CFLs burn out at the bulb from old age. Most had
electronic failures, or jsut broke.
The longest lasting CFL may be one in my bathroom with 10 years of
on-off use. I'd have to remove it to checked the purchase date I write on
them though.
I've had a few CFL's fail due to electronics failure, but the newer
bulbs last longer. Unfortunately as they age they get dimmer. Looking
at an aged bulb I noticed that the phosphor layer has turned a brownish
color.
I'd have to agree that the newer ones seem a bit better. They've figured
out how make them as simple as possible now is my guess.
I did have one failure that when I took it apart, 1 of the wires to to
the flourescent was disconnected& the others were questionable.
Soldered them all& re-assembled the bulb and it's still in use in the
basement bathroom.
they're still useless for outdoor cold use. The ones outside by the stairs
are like nightlights when the temps drop to freezing. It's amazing they
even start.
I'm not a fan of the warm up period they take, even indoors.
Interesting, my outside CFLs are over 35yrs old and start down to -8C
without fail. My newer CFLs, die like flies in comparison, particularly
in glass globe fittings. I reckon some CFLs have as short a life as
filament bulbs, even when running cool..
35 years old? That thing must have been belt driven.
Philips brought out a bayonet fitting CFL late '70's. Very heavy for
pendant drops!
Our outside lamps are CFLs fitted in 1995. No failures although they
don't get much use.
The oldest ones I saw were 1990-ish and from panasonic, with a huge
magnetic ballast. It was large, stupid and didn't fit in most fixtures. I
can't recall what the life was, but it was put together well with lots of
glass and silicone goop. There's no way in hell it was cheaper than a box
of incandescent bulbs, especially when you factor in the part where
electricity itself isn't really that expensive in the US.
--
Tim Lamb