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-   -   12V under cabinet halogens way too bright (https://www.diybanter.com/home-repair/273952-12v-under-cabinet-halogens-way-too-bright.html)

Mike Hartigan March 21st 09 02:22 AM

12V under cabinet halogens way too bright
 
I want to use these for accent lighting, not as task lights.
Unfortunately, a dimmer doesn't work with an electronic
'transformer', and a magnetic transformer costs more than the lamps.
Could I simply use a lower voltage electronic transformer? If so,
how low should I go to get, say, half as much light output?

AZ Nomad[_2_] March 21st 09 02:55 AM

12V under cabinet halogens way too bright
 
On Fri, 20 Mar 2009 21:22:42 -0500, Mike Hartigan wrote:
I want to use these for accent lighting, not as task lights.
Unfortunately, a dimmer doesn't work with an electronic
'transformer', and a magnetic transformer costs more than the lamps.
Could I simply use a lower voltage electronic transformer? If so,
how low should I go to get, say, half as much light output?


WTF don't you install lower wattage bulbs?

stan March 21st 09 07:34 AM

12V under cabinet halogens way too bright
 
On Mar 20, 11:55*pm, AZ Nomad wrote:
On Fri, 20 Mar 2009 21:22:42 -0500, Mike Hartigan wrote:
I want to use these for accent lighting, not as task lights. *
Unfortunately, a dimmer doesn't work with an electronic
'transformer', and a magnetic transformer costs more than the lamps. *
Could I simply use a lower voltage electronic transformer? *If so,
how low should I go to get, say, half as much light output?


WTF don't you install lower wattage bulbs?


Think I've seen those halogen bulbs from 15 to 50 watts. That's a
ratio of 30% to 100%.
problem is those halogen are very bright small point sources of light,
not really designed for area or 'mood lighting'?

Art Todesco March 21st 09 01:15 PM

12V under cabinet halogens way too bright
 
AZ Nomad wrote:
On Fri, 20 Mar 2009 21:22:42 -0500, Mike Hartigan wrote:
I want to use these for accent lighting, not as task lights.
Unfortunately, a dimmer doesn't work with an electronic
'transformer', and a magnetic transformer costs more than the lamps.
Could I simply use a lower voltage electronic transformer? If so,
how low should I go to get, say, half as much light output?


WTF don't you install lower wattage bulbs?

Lower wattage is good, however, there
are dimmers that can work
with the "electronic" transformers. I
use one in a TV production
truck where it is used to dim 4 20 watt,
12 volt hockey puck lights above
the production console. During setup
you need bright, but during
production we dim them so it's easier to
see the TV and computer
monitors.

Joe March 21st 09 04:14 PM

12V under cabinet halogens way too bright
 
On Mar 20, 9:22*pm, Mike Hartigan wrote:
I want to use these for accent lighting, not as task lights. *
Unfortunately, a dimmer doesn't work with an electronic
'transformer', and a magnetic transformer costs more than the lamps. *
Could I simply use a lower voltage electronic transformer? *If so,
how low should I go to get, say, half as much light output?


If you are locked in to the bulbs you have, could you use a
combination series and parallel wiring? That should be an easy fix.

Joe

Smitty Two March 21st 09 04:39 PM

12V under cabinet halogens way too bright
 
In article ,
Mike Hartigan wrote:

I want to use these for accent lighting, not as task lights.
Unfortunately, a dimmer doesn't work with an electronic
'transformer', and a magnetic transformer costs more than the lamps.
Could I simply use a lower voltage electronic transformer? If so,
how low should I go to get, say, half as much light output?


FWIW, I have 120VAC under cabinet halogens with LOW-MED-HI-OFF touch
switches. I just checked, and with line voltage at about 116, I'm
getting 110 from the bulb supply on HI, 68 on MED, and 37 on LOW.

Low is plenty for mood lighting at night with little other room
lighting. So, you might shoot for 1/3 to 1/2 of what you have for
starters, i.e. try 4 to 6 volts.

My experimental data fits nicely with Joe's suggestion; try two or three
bulbs in series to see whether that's what you're looking for. Or hook
one bulb up to some flashlight batteries to experiment with different
voltages.

@¿@ March 21st 09 07:15 PM

12V under cabinet halogens way too bright
 
I painted mine, left a small amount unpainted facing the direction I wanted
brighter


"Mike Hartigan" wrote in message
...
I want to use these for accent lighting, not as task lights.
Unfortunately, a dimmer doesn't work with an electronic
'transformer', and a magnetic transformer costs more than the lamps.
Could I simply use a lower voltage electronic transformer? If so,
how low should I go to get, say, half as much light output?




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