This is the first time I've attempted anything like this, so this is a very naive question. I'm pretty sure the unit is wired with the beads (I haven't opened it up yet - it's a Photon 16), but I notice CREE and other LEDs come mounted on a daisy-like disk. If I buy some that are already mounted, do I take the bead off the disk or just solder it with the disk? Some LEDs would have the disk and others would not. Or, it might be that disks always need to be used and I'll need to order them separately?