Most LED Lighting that we offer can be dimmed. We have an RF dimming switch which allows you to have multiple switches without having to wire them.

Some LED power supplies do not light to be dimmed, so you would have to find an option to dim the LED lights on the low voltage side (after the power supply/driver/transformer).

Hi, As far as our products go, you can dim on the high or low voltage side. We have an RF dimmer as well or an in-line dimmer to dim on the low voltage side.
http://inspiredled.com/in-line-switch
http://inspiredled.com/dimmer-with-wireless-remote

To dim via a wall dimmer, you just need to hardwire a dimmable transfromer and use a compatible analog magnetic low voltage dimmer.
http://inspiredled.com/dimmable-transformer-12VDC
http://inspiredled.com/lutron-wall-dimmer

Every company has different variations of dimmers! Long story short, yes, you can dim your under cabinet LED lighting!

Is this warm white or cool white cabinet lights

@tonyacason : I cannot be exactly sure, but they appear to be warm white which is about 3200K. Here is a comparison of the warm and cool side by side! Cool is on the left while Warm is on the right!

See Title-24 LED Recessed Lighting for fixtures that are energy compliant for kitchen and baths..