I honestly love these set of lights. They are just an amazing and bright set of lights. The installation is very easy. You can either use the self sticking or the screws, and both are enclosed with the lights along with the batteries. I use them in the kitchen for a little extra light for the countertops that I affixed these to the bottom of the top cabinets to light up the countertops. They light up amazing great and I really love them.