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Here's one for you. Driving lights
- Thread starter Lukens
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They do look like the ones back when, and I'm sure some folks bought one of each.
Nice addition to the front of the car!
Nice addition to the front of the car!
jessebogan
Jedi Knight
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The one with a clear lens is an SLR, long range lamp (driving light) The fluted lens is an SFT fog lamp. If they are Gen-U-ine Lucas lamps, there will be a date code on them someplace. Repros generally don't have one. Lenses may say "made in England". These are good repro, OR older genuine. Sometimes the lenses will say "Foreign Glass", these appear to be made in the 70s.They should be on separate switches.
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True, that IS the way the Brits did it...but they were on the other side of the road! Logic dictates that the fog lamp should be on the side of the car closer to the edge of the road and the driving lamp closer to the middle of the road -- if you have just the one of each. And that's what I plan to do...someday...when I get around to it...on my Herald, since I finally found the amber-lens 576 fog lamp I've been wanting for years (call me traditional)! 
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True, that IS the way the Brits did it...but they were on the other side of the road! Logic dictates that the fog lamp should be on the side of the car closer to the edge of the road and the driving lamp closer to the middle of the road -- if you have just the one of each. And that's what I plan to do...someday...when I get around to it...on my Herald, since I finally found the amber-lens 576 fog lamp I've been wanting for years (call me traditional)!
That makes sense. I've seen lot of British cars with one driving light and one fog light - never occurred that it make a difference which side they are one.
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I had Lucas driving/fog lights (576 series) on various cars in the sixties (recently sold my last NOS pair) and the lenses were easily changed. The bulbs were different - the fog light bulb had a shield over the top.
There was no one "correct" mix, at least in the US. Some guys used pairs of fogs, some one of each, etc. FWIW, I don't remember manufacturers mixing them. I used to swap lenses and bulbs depending on the season.
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