I would use LED low voltage tape lighting or LED puck lights. There are a lot of you tube videos on how to install this and where to find it for the best price if this is a DIY project. Unless you have a light rail molding built into the bottom of your upper cabinet the tape will most likely hide under the cabinet better than a puck. Good luck!

I used LED small tracks that snap together in lengths of 12", from home depot. We are very happy with them and the lighting colour is not the cool blue, which I was afraid of, but a soft warm colour. They give off absolutely no heat so they are safe to leave on for a long time. The valance on the cabinets completely hides the small tracks. Love them!

Thanks! I meet with the electrician in about an hour and will share this thread with him!!!

another recommendation for the snap together LED tracks

I just had LED under cabinet lights installed that are Maxcor. The strips have a toggle switch of low and high as well as off. I have mine wired to a single light switch control so that I can turn all of them on and off in one spot. My electrician said he is going to install a dimmer switch for me so that I will have more lighting options. This is the first time I have had under counter lights and they make a huge difference. I just love mine and what they do for my kitchen!