Under-cabinet lighting is great for kitchens because it focuses the light onto the countertop, which is the main work surface in a kitchen. This type of lighting is also a very inexpensive add-on for existing kitchens. There are many different light bulbs such as halogen, xenon and fluorescent that can give your kitchen a completely different effect. Halogen and incandescent light are best. Design by Andreea Avram Rusu.