This has been discussed many times. Search this site for "under cabinet lights" in Advice.

WAC Lighting, Kichler lighting, Maxim lighting all make low profile undercabs, however, depending on the placement, you may not solve that problem. Another issue with slimmer sometimes you get dots from the LED's reflecting in the counter which is equal hate. Post a picture.

Hopefully the OP won’t mind if I jump in with a picture. I’ve been looking at GM SlimEdge after much googling - I like their 90+ CRI vs the 70-80 I’m seeing with many other manufacturers. http://gmlighting.net/24VDC_SlimEdge™_Modular_Architectural_Lightbar
What is usually done for the glass cabinet in-cabinet lights though?..

If that is your kitchen you can simply replace the bulbs in that is similar in color temp.

Yes, this is our kitchen. Unfortunately the existing lighting is halogen and in rough shape. Looking to switch to LED.

GE Enbrighten LED Direct Wire Under Cabinet Lights (at Home Depot):

• 12, 18, 24, 36 inch lengths
• Runs on 120 volts (unlike "SlimEdge" above which require a 24v transformer)
• Switch on lamp housing, or control with wall switch
• Adjustable color temperature
• Dimmable

Can I ask a stupid question? Physics was always a struggle for me. If we’re having an electrician come and install the lights, what are the downsides to 24v, other than needing the transformer and the extra associated cost? The Enbrighten option appears to be quite a bit thicker than the GM, so if the only difference is the extra $200 transformer I think I’d be willing to pay.

Whether the thickness of the fixture matters depends on the design of the cabinets. I have IKEA cabinets with a "deco strip" attached to the bottom of the cabinet that hides the underside of the cabinet as well as the under-cabinet lights and wires. It hangs down 2-1/2" below the cabinet so it would hide a 1" or 3/8" thick light.

The SlimEdge lights are available with color temperatures of 2700K and 3000K while the Enbrighten is switchable between 3000K-4000K-5000K. IMO 2700K is definitely too low (i.e., light is too yellow) for a kitchen and 3000K is on the border.

Before deciding, I'd pick up one of these Commercial Electric Selectable Integrated LED Downlights ($20 at Home Depo), attach the downlight to a lamp (screw the connector into a lamp), and experiment with various color temperatures and brightnesses, shining the downlight at your countertop and other things (e.g., backsplash, food) that will be illuminated by the under-counter light you ultimately choose.

Ooh that’s an awesome suggestion - I’m pretty set on 3000k since that’s what I plan to use for LED retrofit cans, and wouldn’t want the color temperature to contrast too much, but being able to play around with something like this should be super helpful.

"I’m pretty set on 3000k since that’s what I plan to use for LED retrofit cans..."

Then use the downlight to also check the color temperature for your ceiling lights too. You may (ok, I think you will) find that 3000K is too low for your kitchen and that it will make the cabinets look too yellow.

Or you could just buy selectable LEDs for the ceiling; Home Depot has them from several manufacturers.

Thanks so much for all the great suggestions! Oddly enough, the yellow has never bothered me, and I find cooler lights a bit too stimulating in the evening, but for $20 I will gladly play around with all the options!

Took a closer look at our current undercabinets with the electrician today, and they are 120v, so it looks like we will be going with the Enbrighten lights instead so as not to make all of this more complicated than necessary. Thanks for the recommendation wdccruise!