We installed flexible LED light strips in our kitchen for under cabinet and within cabinet lighting. These are very low energy consumption, cool to the touch, and rated to last for 50,000 hours.
The strips are about 1 cm wide and 2 mm thick. The strips come on a spool with a sticky tape side. You press the sticky side to the bottom of the cabinet (or the sides inside) and the strip gives a very diffuse effective and efficient light. They are so thin, you can’t really see the light strip itself, only the glow. The strip is a circuit of LEDs in a row. They have marked segments about every 2-3 inches where you can cut them to fit. They typically run off of 12 volts; the transformer can sit i a cabinet, attic, or basement. You can also specific different color temperatures (very warm to very cool). The lights are dimmable.
We used them under our cabinets and inside of one cabinet (picture above).
There are tons of manufacturers peddling flexible LED strips now. You can purchase them in meter strips or on 5 meter reels. Here is one supplier with many products and variations: Superbrightleds.com. I have no experience in using this outfit. It is a new market so quality varies.
We used a local California-based manufacturer, Aion. Their prices are higher than many of the imports (usually from China), but they had a deliverable guarantee of 5 years. Unfortunately they don’t deal retail, wholesale only through electricians, who can reliably install it.
If anyone has experience with installing DIY LED strips, please let us know.
And these nifty strips can be used for all kinds of other illumination where flexibility and thinness is desired.