The particular application these were developed for was to mount a strip of LEDs on the BACK side of a cross on the front wall (interior) of a church, to provide an indirect glow lighting.The adhesive strip on the back of the LED strip can be removed, this holds it more securely and permanently, and also forces it to line up properly.There's a very low overhang on the clip that seldom prints properly - I clean these up with a hacksaw blade manually before using them.