halogen bulb / incandescent bulb dimming

[h***@ccanoemail.ca]

Hi Folks ;
We have installed new range hood that has a 2-bulb 3-step dimmer.
Broan manual says to install PAR 20 halogen / R16 incandescent -
- I'm told that LED even dimmable will not work. True / False ?
R16 incandescant seems un available ..
Halogen is hot & harsh ...

Any other suggestions are welcome ... 2 40 watt appliance lights
might do for now ...

John T.

[h***@ccanoemail.ca]

Post by h***@ccanoemail.ca
Hi Folks ;
We have installed new range hood that has a 2-bulb 3-step dimmer.
Broan manual says to install PAR 20 halogen / R16 incandescent -
- I'm told that LED even dimmable will not work. True / False ?
R16 incandescant seems un available ..
Halogen is hot & harsh ...
Any other suggestions are welcome ... 2 40 watt appliance lights
might do for now ...
John T.

Part 2 Question :

Does dimming a halogen bulb save energy ?
Does dimming an incandescent bulb save energy ?

We tend to use the range hood as a night light ..

John T.

[trader_4]

Post by h***@ccanoemail.ca

Post by h***@ccanoemail.ca
Hi Folks ;
We have installed new range hood that has a 2-bulb 3-step dimmer.
Broan manual says to install PAR 20 halogen / R16 incandescent -
- I'm told that LED even dimmable will not work. True / False ?
R16 incandescant seems un available ..
Halogen is hot & harsh ...
Any other suggestions are welcome ... 2 40 watt appliance lights
might do for now ...
John T.

Does dimming a halogen bulb save energy ?
Does dimming an incandescent bulb save energy ?
We tend to use the range hood as a night light ..
John T.

Yes and yes. It also increases the life.

[rbowman]

Post by h***@ccanoemail.ca
Does dimming a halogen bulb save energy ?
Does dimming an incandescent bulb save energy ?

A halogen bulb is an incandescent. Assuming a modern dimmer and not the
old rheostats that created heat rather than light, a little. A triac
clips part of the cycle so no power is being used.

The catch is an incandescent light is less efficient when operating
outside of its designed range. In other words, you get fewer lumens per
watt even while using fewer watts.

If you just want a nightlight the best solution would be to buy a
plug-in nightlight. There's a wide selection for under $USD 10.

To put it in perspective you probably can find more loose change in the
sofa than you're going to save in the long run.

[Clare Snyder]

Post by h***@ccanoemail.ca

Post by h***@ccanoemail.ca
Hi Folks ;
We have installed new range hood that has a 2-bulb 3-step dimmer.
Broan manual says to install PAR 20 halogen / R16 incandescent -
- I'm told that LED even dimmable will not work. True / False ?
R16 incandescant seems un available ..
Halogen is hot & harsh ...
Any other suggestions are welcome ... 2 40 watt appliance lights
might do for now ...
John T.

Does dimming a halogen bulb save energy ?
Does dimming an incandescent bulb save energy ?
We tend to use the range hood as a night light ..
John T.

Dimming incandescent bulbs - including Halogens - DOES save energy -
even if the dimming is done with an autotransformer (rheostats
virtually never used)
In answer to the first part of the question, it depends what kind of
"3 step dimmer" is used. I've seen 2 step dimming implemented by
switching in a half wave rectifier. If by "3 step" you nean off, dim,
and bright, that is likely what you have and an LED bulb will not dim
(and may not even light) in the dimmed position.

Another option is series/parallel switching - in which case removing
one bulb will disable lights in dim position.

[g***@aol.com]

Post by h***@ccanoemail.ca

Post by h***@ccanoemail.ca
Hi Folks ;
We have installed new range hood that has a 2-bulb 3-step dimmer.
Broan manual says to install PAR 20 halogen / R16 incandescent -
- I'm told that LED even dimmable will not work. True / False ?
R16 incandescant seems un available ..
Halogen is hot & harsh ...
Any other suggestions are welcome ... 2 40 watt appliance lights
might do for now ...
John T.

Does dimming a halogen bulb save energy ?
Does dimming an incandescent bulb save energy ?
We tend to use the range hood as a night light ..
John T.

Put an S-20 sign bulb in it. (11w)

That will not be too hot for anything that can take a Halogen "R" or
not.

[Rod Speed]

Post by h***@ccanoemail.ca
Hi Folks ;
We have installed new range hood that has a 2-bulb 3-step dimmer.
Broan manual says to install PAR 20 halogen / R16 incandescent -
- I'm told that LED even dimmable will not work. True / False ?
R16 incandescant seems un available ..
Halogen is hot & harsh ...
Any other suggestions are welcome ... 2 40 watt appliance lights
might do for now ...
John T.

Does dimming a halogen bulb save energy ?

Corse it does.

Does dimming an incandescent bulb save energy ?

Corse it does.

We tend to use the range hood as a night light ..

Makes a lot more sense to have a dedicated
night light there and to use a LED for that.

[danny burstein]

[snip]

Post by Rod Speed

Does dimming a halogen bulb save energy ?

Corse it does.

However, keep in mind (in addition to what everyone else
has mentioned) that reducing the (effective) wattage
of a halogen may very well, _unlike with a standard incandescent_,
lead to a _reduction_ in its life span.

Reasons are left as an exercise to the student.

Again, that's a "may very well". It depends on the
exact design/manufacture.

[Clare Snyder]

On Sat, 24 Nov 2018 02:47:47 +0000 (UTC), danny burstein

Post by danny burstein
[snip]

Post by Rod Speed

Does dimming a halogen bulb save energy ?

Corse it does.

However, keep in mind (in addition to what everyone else
has mentioned) that reducing the (effective) wattage
of a halogen may very well, _unlike with a standard incandescent_,
lead to a _reduction_ in its life span.
Reasons are left as an exercise to the student.
Again, that's a "may very well". It depends on the
exact design/manufacture.

As long as the bulb is run "at temperature" for a while every once in
a while to allow the halogen cycle to re-deposit the tungsten the
lifespan is not badly affected.

As an example, when cars run the halogen headlights at half intensity
as DRLs it doesn't harm them. The headlights in my '96 Ranger were
still the original bulbs at 360000km and 22 years - - - -I changed the
optics at that point, and they came with new bulbs. I still have the
original halogens in a box. They were possibly down a bit in output
but there is no tungsten deposits on the glass, so the halogen cycle
was doing it's job.

Lowered voltage may not extend the life of a halogen bulb as much as a
simple tungsten bulb, but it will not actually reduce the lifespan and
the tunsten deposits on the glass envelope WILL be redeposited on the
filament after a short time operating at design voltage/temperature.

[unknown]

Post by h***@ccanoemail.ca
Hi Folks ;
We have installed new range hood that has a 2-bulb 3-step dimmer.
Broan manual says to install PAR 20 halogen / R16 incandescent -
- I'm told that LED even dimmable will not work. True / False ?
R16 incandescant seems un available ..
Halogen is hot & harsh ...
Any other suggestions are welcome ... 2 40 watt appliance lights
might do for now ...
John T.

Some R16's here:
https://www.bulbs.com/Medium_(E26)-Base/results.aspx?Ntt=r16

[trader_4]

Post by h***@ccanoemail.ca
Hi Folks ;
We have installed new range hood that has a 2-bulb 3-step dimmer.
Broan manual says to install PAR 20 halogen / R16 incandescent -
- I'm told that LED even dimmable will not work. True / False ?
R16 incandescant seems un available ..
Halogen is hot & harsh ...
Any other suggestions are welcome ... 2 40 watt appliance lights
might do for now ...
John T.

Why not just try it? How the power supply in LEDs reacts to the various
types of dimmers is the issue. If the LED is rated to work with the
common dimmers I would think it would work.

[g***@aol.com]

Post by h***@ccanoemail.ca
R16 incandescant seems un available ..

<https://www.1000bulbs.com/product/5730/FL-101250.html?gclid=EAIaIQobChMIsb6pgPfr3gIVjFqGCh0mzg2aEAQYASABEgKVEfD_BwE>

[Clare Snyder]

Post by g***@aol.com

Post by h***@ccanoemail.ca
R16 incandescant seems un available ..

<https://www.1000bulbs.com/product/5730/FL-101250.html?gclid=EAIaIQobChMIsb6pgPfr3gIVjFqGCh0mzg2aEAQYASABEgKVEfD_BwE>

Readilly available here in Canada at local hardware stores, Walmart,
Canadian Tire, Home DFespot etc. Being "specialized" bulbs they are
not affected by the "incandescent ban".

[h***@ccanoemail.ca]

Post by Clare Snyder

Post by g***@aol.com

Post by h***@ccanoemail.ca
R16 incandescant seems un available ..

<https://www.1000bulbs.com/product/5730/FL-101250.html?gclid=EAIaIQobChMIsb6pgPfr3gIVjFqGCh0mzg2aEAQYASABEgKVEfD_BwE>

Readilly available here in Canada at local hardware stores, Walmart,
Canadian Tire, Home DFespot etc. Being "specialized" bulbs they are
not affected by the "incandescent ban".

... define " readily " ! :-) .. we tried 3 or 4 Home
Hardware Stores before finding < the last > 2. on the shelf.
Lowes had a huge selection of every-bulb-imaginable -
but not this one ...
We'll see how these 2 perform and likely switch to halogen
if these prove too difficult to source, in future ..
John T.

[Clare Snyder]

Post by h***@ccanoemail.ca

Post by Clare Snyder

Post by g***@aol.com

Post by h***@ccanoemail.ca
R16 incandescant seems un available ..

<https://www.1000bulbs.com/product/5730/FL-101250.html?gclid=EAIaIQobChMIsb6pgPfr3gIVjFqGCh0mzg2aEAQYASABEgKVEfD_BwE>

Readilly available here in Canada at local hardware stores, Walmart,
Canadian Tire, Home DFespot etc. Being "specialized" bulbs they are
not affected by the "incandescent ban".

... define " readily " ! :-) .. we tried 3 or 4 Home
Hardware Stores before finding < the last > 2. on the shelf.
Lowes had a huge selection of every-bulb-imaginable -
but not this one ...
We'll see how these 2 perform and likely switch to halogen
if these prove too difficult to source, in future ..
John T.

Local Home Despot had several on the shelf. Kitcxhener Home Hardware
did too a few weeks back. I can always order them from City Electric
or Guillevin or any of the other local wholesalers too.

They are not a "fast mover" so stores may be phasing them out. Buy a
few spares when you find them

[Dee Stevenson]

What did you end up installing? Did it work well? I have same issue except 2 step dimmer