Switch on wall goes to a plug. In that plug is a 12v transformer that powers LED strip lights. What would the set up be to dim the lights? The LED's are dimmable. Do we need a special dimming transformer?

Meanwell PWM dimming transformer. That's what I use here in Australia. Would have to check if they do US versions.

Transformer needs to be dimmable. Typically magnetic transformers are, so use a dimmer to dim the transformer connected to dimmable LEDs. All parts (dimmer, transformer, LEDs) have to work together.. I have found "dimmable LED lights with transformers / drivers included claim to be dimmable, but not work with any type of Lutron dimmer (including electronic, neutral wire, etc).

Something like this will work. Just be mindful of your wattage capacity.

[Link: amazon.com]

Exactly what i needed to know! Thanks folks for the prompt replies.

have a look here [Link: leevalley.com]

You need:

1. A dimmable driver which is dimmable by forward-phase or reverse-phase dimming.

2. A dimmer which matches the requirements of the driver (MLV, ELV etc.).

3. To remember that you cannot connect a dimmer to a wall receptacle unless the wall receptacle is UL approved for a dimming load. As far as I know, Lutron is the only company which markets a UL Listed dimmable receptacle. It's available in half hot/half dim or both halves dimmable. It uses a special plug which goes on the cord of your LED driver. This keeps people from plugging in a vacuum cleaner or radio into a receptacle which is fed from a dimmer.

This could work if that brand of LEDs will do the job. The web page says

"OUR" is the key word there.

0. LED bulbs that are dimmable


compatible with the LED bulbs and