The fishing bobber LEDs seem to work the best with clear packaging tape. Although I went back to just buying 1.5" mini glow sticks on Ebay and then again just taping over it in an x-pattern. For drivers I usually put one on top and bottom of the disc and the mids/putters just one on top. The lights you screw directly onto your discs are way too bright, I got a set of these and it was like having a cop shine their flashlight in your eyes every time I pulled on out of my bag. Frustrating trying to be courteous and let everyone else throw first, knowing you're going to mess up everyone's night vision adjustment then having to throw after while being blinded and literally throwing with your eyes closed! At Walmart and Fred Meyer's you can buy battery operated portable black lights, turn it on and wand it over your glow discs and it'll make them glow even better, forget the camera flash!