I have a low voltage recessed light with a magnetic transformer and low voltage undercabinet lighting with electronic transformers connected to the same switch. What type of dimmer will work in this situation?
HI, WELL YOU CAN USE ANY KIND OF 120 VOLTS DIMMER THAT IS NOT JUST FOR INCANDESCENT , YOU NEED A DIMMER READY TO BE USED WITH INDUCTIVE LOADS, THE DIMMER SAYS IN THE BOX IF IS READY TO BE USED WITH INDUCTIVE LOADS OR WITH TRANSFORMERS OR IF IT SAYS JUST RESISTANCE LOADS ( INCANDESCENTS ) JUT CHECK IF IT SAYS YOU CAN USE WITH TRANSFORMERS ( A TRANSFORMER IS AN INDUCTIVE LOAD ) AND YOU ARE READY, BE AWARE THE DIMMER CONTROLS THE HIGH VOLTAGE ( 120 ) VOLTS OR PRIMARY OF THE TRANSFORMER , THE OUT OF THE TRANSFORMER IS ALWAYS CONNECTED STRAIGHT TO THE BULBS, NEVER THROUGH A DIMMER ( EXCEPT IN INDUSTRIAL OR ESPECIAL CONDITIONS FOR TELEVISION, THEATERS OR OTHERS )BUT NEVER FOR RESIDENTIAL ANY QUESTION JUST LET ME KNOW
LUIS SILVA SANTISTEBAN
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[This message has been edited by Webmaster (edited 09-26-2004).]
LUIS SILVA SANTISTEBAN CALIFORNIA GENERAL BUILDING AND ELECTRICAL CONTRACTOR 770370 HIC MEMBER OF BETTER BUSINESS BUREAU 925 705 0856
Re: Dimmer type?#129187 09/26/0403:11 AM09/26/0403:11 AM
Read the Instructions / Specifications which came with the Fixtures, as they typically will have information as to the type of Dimmers to use (but not always... ...).
Normally, when Dimming something with an Electronic Ballasting / Power Supply device, the basic "Simple" Incandescent type Dimmers will work. When it comes to Dimming a Low Voltage Lamp (such as an MR-16, 12 Volt), driven by an Isolated Transformer mounted on the Fixture, then the "Electronic" type Dimmers need to be used.
Consult the Manufacturer, or check out different Dimmers' Specifications, and apply as suggested.
BTW, had to purchase a 600 Watt Dimmer, to be used with 277 VAC x 12 VAC Transformer driven MR-16 Lamps. This one was made by Lutron, and cost around $120.00!
Scott " 35 " Thompson Just Say NO To Green Eggs And Ham!
Hi Scott35...not sure which dimmer to use yet.This is something that I roughed in and haven't finished yet. I thought there was dimmers for standard incandescent lights,dimmers for low voltage magnetic type transformers and dimmers for low voltage electronic type transformers,each specifically designed for its particular use. I have one Halo H1499 recessed light(MR16 50watt bulb) with a magnetic trans and two Kichler under cabinet xenon(18 watt x 3) LV light strips with electronic transformers and I'm not sure which dimmer will work properly.
I'd imagine that you'd just about be able to get away with using any sort of Trailing Edge Dimmer. Just as long as the VA rating of the dimmer was above the collective VA rating of the W/W transformer and the Input VA rating of the Electronic transformer. I'd also add a small safety margin to the final VA rating of the dimmer, as a precaution.