On 23/01/2020 22:09, Rod Speed wrote:


"NY" wrote in message
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"polygonum_on_google" wrote in message
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On Thursday, 23 January 2020 12:04:20 UTC, Jim GM4DHJ ...Â* wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Anyone ever fully understood why we only have one high intensity rear
fog lamp?

This has always puzzled me. Tail lights are at the extremities of your
vehicle so as to define its width to a vehicle that is approaching
from behind so it can judge how far away it is from you. In fog, tail
lights cannot be seen from very far away, so rear fog lights serve the
same purpose. So there need to be two of them, co-located with the
tail lights.

But no, most cars only have one, on the offside. On my previous
(older) cars, there was a bulb holder and red housing on the nearside,
wired in. All it needed was to put a bulb in there and I had two
foglights. But my present car only has a red housing on the offside
(for a fog light) and only has a white housing on the nearside (for a
reversing light). It's not just a case of fitting missing bulbs to
give two foglights and two reversing lights.

When I'm reversing into a narrow opening between two gateposts, it is
very useful to have reversing lights on *both* sides, so they light up
*both* gateposts. In the absence of two reversing lights, I usually
put on my rear foglight as a (red) reversing light to light the offside.

I always back out of where I park the car at home and
its between two big trees, quite a tight fit and the wheel
is on full lock till its past the trees. The reversing lights
ate plenty bright enough to see the trees in the dark
with no street lights lighting anything back there and
no external lights of mine either.

My Mustang doesn't have reversing lights and this is quite legal as it
wasn't made a requirement until quite recently......