Here's a few quick shots (not the best) of the lights install. I found Araldite the best method of gluing the light on/in. Never use Superglue as it degasses and turns everything white, not to mention it can melt alot of plastics. LED's usually come in either 3mm or 5mm. Usually you'd use 5mm ones for headlights and spot lights, and 3mm ones for brake & indicator lights. All you need to do is carefully drill a hole the size of the LED - either 3 or 5mm and slot it in. Always best to paint the back of the light are and glue black to stop any backlighting as it looks cheap when wheeling. The LED packs usually come with those little metal fold tabs, they have a very strong adhesive backing.