Thought I'd share this in case anyone else was thinking about doing the same but had doubts on whether it was worth trying..
Headlamps were looking pretty oxidised and faded so before going out and buying replacements I thought I'd give one of the restoration kits a go. For the sake of £20 and a few hours of time it seemed a no-brainer so a little bit of on line research and ordered a 3M kit via Amazon.
These kits are ideally suited to lenses with a flat profile so as you need to sand the whole lens and ours are anything but flat,I decided to take both off to protect the bumpers and do the sanding on the workbench. Glad I did as there was no way to get the lower rounded sections if they were still on the car.
I think the results for £20 were well worth it - was uncomfortable starting the sanding as once you do there is no turning back but with some patience and time they have come up pretty good I think.
If anyone is thinking about doing this I would suggest you have a go, all you need is a drill, spray bottle of water and some time, but make sure you buy a kit from a reputable brand.

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After


















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I think I read the lenses have a coating which protects it from UV. It’s worth a try though and youve not lost much if they go dull again in a few months. 2019 5.0 SC SVA (Current)
2012 5.0 SC AB. Sadly written off by a campervan
23 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

A good quality polish will help to keep this from happening again..

My old car I had to do this every couple of years once I started.. ===========================================
2012 Range Rover Sport Autobiography 3.0 SDV6 8 speed Automatic
Indus Silver with Hockenheim premium two-tone leather Ebony/Lunar,

Wow! Fantastic results!👍

Jim

I did this on my previous Lotus

Removing the headlights is a better option , i would also suggest purchasing all the sanding disks separately


INDASA RHYNOGRIP ABRASIVE SANDING DISCS HT LINE 75mm 3in P800 X 50 CAR BODY

INDASA RHYNOGRIP ABRASIVE SANDING DISCS HT LINE 75mm 3in P500 X 50 CAR BODY

3m 50415 Hookit Trizact P3000 75mm x 15 discs

When doing my lotus i started with a 3m kit. I had used it all before even doing the second headlight ! Meguiars ultimate compound was also a good polish for the end bit. Also ! make sure you protect your headlights now the UV coating has gone, eventually they will turn yellow.

Forgot to mention in the original posting that I also applied a sealant treatment to prevent the yellowing occurring again!

Appreciate the advice though gents....

wd40 does the same thing on a temporary basis , you need to re do it every couple of weeks

Tried that. for a while ...made no difference whatsoever.

Sorry should have said I cleaned them with glass cleaner and then scrubbed with bicarbonate and white vinegar washed off with soapy water and then cleaned with WD40
It lasted a good couple of weeks and then I just re spayed with WD40 and they came back like new