Defender lighting and earths

Hi, my headlights seem to have gradually dimmed over the last year since I fitted them. Clear crystal with decent bulbs. I am toying with LED headlights, then thought about a boomslang loom, as it will be cheaper than buying the parts and making a loom?, then thought about checking the earths? Is it the one near the heater box?
The warning lights on the dash panel are also very dim, is this earthed separately.
I have been ignoring the defender for a good few months as I have bought a bay window vw camper, to restore, the parts are dearer and worse quality than defender parts, so currently sulking with it and have been giving the defender more attention again.

kes86 said:

headlights seem to have gradually dimmed over the last year since I fitted them

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kes86 said:

warning lights on the dash panel are also very dim,

Click to expand...

Sounds like poor earths and a build up of corrosion to make them dim slowly over time, ditto the warning lights not earthing well - usually an earth for them to the body behind the dash.
Use a Boomslang loom (to save time, can make it yourself but I doubt it works out much cheaper) as it powers lights directly, and check all earths. Even if looking good, remove, clean terminals and attachment to bare metal, blob of copper slip and redo. Good to do battery/chassis/g'box/starter/body earths too.
I'd save my money re LEDS; they must be E-approved etc, are expensive and personally I'm not keen. Crystals like you have should should be fine - mine are (Wipac crystal 55/60 halogens and BS loom, new earths all round).

Thank you, I think I’ll go and give it a go while it’s not snowing.....