mine either need a refurb via the sanding method of which there are many online tutorials, but also if I do this what is the best way or sealing them after rework? some kind of UV clear lacquer spray? wax? clear coat? what brands etc are good.
or, as I'm a lazy git, what options are there for standard oem type replacements are HELLA any good are they just like OEM? what other cheapish brands / replacements are out there and what is the quality like?