I had line voltage tracks with a dimmer and the dimmer worked fine. I
replaced the track with a newer track, hampton bay, and put in 3 low
voltage halogen light fixtures in it. Now the light turns on and off
but the dimmer doesn't work. Has anyone ever seen this? I thought you
could use a dimmer with low voltage halogens. The light still turns on
and off but it doesn't dim.
at 10:15 PM, email@example.com (glen) said:
Probably, the dimmer is not designed to be used for low voltage
lighting. Do you still have the instructions that came with the dimmer?
They will tell you if it is designed to operate with low voltage
Dimmers that operate low voltage lighting are slightly more complicated
and cost a fraction more. I think the manufacturers are trying to hit
the lowest possible price and capture the largest market. For most
customers dimmers are just a commodity -- mass consumers buy the
cheapest one. Since low voltage lighting is more expensive, the
manufacturers assume that these customers will not mind using more
expensive dimmers and the manufacturer will capture both customers by
offering a separate model that will dim low voltage lighting. It's
possible that your dimmer is very old and did not anticipate low
There is a lower wattage threshold for inexpensive dimmers. Below that
threshold, dimmers are quirky or inoperative. I haven't looked at any
dimmer instruction sheets recently, I don't know if they point this out
or not. The dimmers I've checked have lower limits in the 7 to 40 Watt
range. (But I haven't checked the current crop.)
You could purchase an appropriate dimmer and move this one to another
wordgame:123(abc):<14 9 20 5 2 9 18 4 at 22 15 9 3 5 14 5 20 dot 3 15
13> (Barry Mann)
[sorry about the puzzle, spammers are ruining my mailbox]
It is a new dimmer that I put in about 1 month ago, but I could have
burned out the dimmer part maybe.. I am not sure how they work, so
can't say for sure. The dimmer worked fine when I installed it and the
old track was up.
Yeah you were right. I went back and got a dimmer for Incandescent and
Halogen. I didn't even notice the $10 dimmer I had bought was only for
incandescents. The new $30 dimmer is marked "halogen" so I it worked.
Yeah I bought the cheapest dimmer, cuz I thought the other ones were
just more features, like night lights and stuff, so I just bought the
least expensive one.
It worked immediately once I installed the new dimmer.
thanks for everyone's advice.
Halogens are a kind of incandescent and are compatible with incandescent
I suspect the old dimmer died from cheap quality, having its limits
being pushed by the wattage of the load, or from a power surge.
- Don Klipstein ( firstname.lastname@example.org)
"Halogen" are a type of Incandescent lamp. Some are low voltage and
maybe they marked it halogen in an attempt to convey the idea they will work
with low voltage lamps, who knows. However I suspect the $10. job you got
was just cheap and died an early death. Many cheap ones do.
The price differences are a combination of features, quality and name.
GE in particular likes to market products just a cheap as the no-name junk
and put their name one it and charge extra.
A halogen lamp also uses a tungsten filament, but it is
encased inside a much smaller quartz envelope. Because the
envelope is so close to the filament, it would melt if it
were made from glass. The gas inside the envelope is also
different -- it consists of a gas from the halogen group.
These gases have a very interesting property: They combine
with tungsten vapor! If the temperature is high enough, the
halogen gas will combine with tungsten atoms as they
evaporate and redeposit them on the filament. This recycling
process lets the filament last a lot longer. In addition, it
is now possible to run the filament hotter, meaning you get
more light per unit of energy. You still get a lot of heat,
though; and because the quartz envelope is so close to the
filament, it is EXTREMELY hot compared to a normal light
...when they're run at their rated voltage, because they depend on their
higher-than-normal temperature to run the "halogen cycle" that
redeposits the tungsten on the filaments. But when you run them on a
dimmer at any intensity much less than full, the temperature doesn't
get high enough to make the "halogen cycle" work, and the bulbs can't
be relied upon to live up to their advertised lifetimes.
DAMN tax cuts! They're letting money trickle down to people who spend it!
WASHINGTON, July 13 (Reuters) - The U.S. government posted a larger-than-
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