The dimmers go on the line side of the transformer the 120 volt side so if you want to control 3 different groups of lights you will also need three transformers.
Dimming low voltage led landscape lighting.
Even though the led s themselves are dc devices for the outdoor lighting they put a little rectifier in afaik for dimming and a master on off you just put a dimmer on the supply side 120v to the transformer.
With the brilliance led two wire low voltage ac dimmer you can blend safe to the touch 12 vac with the superior illumination qualities of low voltage lighting in new and innovative ways to dim your lighting.
First you may just need larger wire.
Brilliance led two wire low voltage ac dimmer.
Box on low voltage side of magnetic.
Magnetic core and coil low voltage mlv electronic solid state low voltage elv.
A quick search on google i found low voltage dimmers from 25 over 250.
This unit can be mounted next to the 12vac transformer or anywhere out in the field.
Make sure you get a magnetic transformer and a magnetic low voltage z wave dimmer.
If you increase the size of the wire you are allowing the electricity to flow with less resistance and therefore lower the amount of voltage drop to each light.
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Also make sure the led s support dimming.
When dimming a low voltage fixture the dimmer controls the line voltage 120 v input to the transformer powering the low voltage lamps.
This might sound backwards but using the latest and brightest lighting lamps and fixtures may not work for every setting.
Led dimming and new technology.
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Next option is to look at a different wiring method.
The brilliance dimmer switch provides for 12vac dimming up to 120 watts.
For example restaurants and hotels may want to set a certain ambiance using led lights on a dimmer.
No longer do you have to use a separate low voltage transformer with an inline 120v dimmer to dim your landscape lighting system.
Another problem we ve noticed with led dimming includes new lighting technology.
Yes you can dim low voltage lighting but be prepared for sticker shock.