Well I did Lennys lights today, I must say Lenny they were poor
well I thought I would post up how to do, this will work on all plastic lens lights.(always sand with water and a little washing up liquid)
First you use 500 grit wet and dry and sand light until smooth but of course dull as you have sanded it down lol.
then repeat this process with 1200 grit,1500 grit,2000 grit and finally 2500grit, now you should have a smooth very lightly scratched light lens, so now use a machine polisher and for this you are better off with a pure rotary polisher not a orbital one and I used poorboys SSR 2.5 anti swirl paste, time taken 1.5hrs per light so not a 5 minute job lol but you will be surprised what you end up with.
heres the pics in order, only first one has during second one is next to first to compare and then done.
Got to sell them now Lenny but should be easy now, demand top dollar mate.