[xk] driving lights

XK
1

my XK 150 now has completely rewired pair of driving lights.
all new wires and all new relays.
the new bulbs are 48W halogens.

the driving lights will only come on when the high beams are on.
adding the driving lights does not seem to increase the light down the road.

Has anyone used 60 W Halogens in this set up?

thanks
ron rader
1960 FHC

2

Hello Kon:
I have tried all the BULBS available, including the 60 watt
Halogens !!!
That is why the Jags imported to the USA had sealed beams installed.
so if want bright lights install sealed beams
“J3” type, they are hard to find, you can recognize them, they are marked
with a J3 in the center of the bulb…
Good luck, also the sealed beams should pass the concors inspection
because they came thru that way
Manny----- Original Message -----
From: “F Ronald Rader” f.ronald.rader@gmail.com
To: “list - XK’s” xk@jag-lovers.org
Sent: Saturday, December 26, 2009 8:00 PM
Subject: [xk] driving lights

my XK 150 now has completely rewired pair of driving lights.
all new wires and all new relays.
the new bulbs are 48W halogens.

the driving lights will only come on when the high beams are on.
adding the driving lights does not seem to increase the light down the road.

Has anyone used 60 W Halogens in this set up?

thanks
ron rader
1960 FHC

3

I have two front mounted driving lights of dubious quality.
I keep putting in bigger bulbs until we reach 105 Watt.
Those worked best but are melting everything and discoloring the lens.
They are powered by a 150 amp GM alternator so power is not the problem:
Question:
I want two new period looking high powered driving lights for fast
night time driving.
Think Montana!

Any ideas?
XK has new repro Lucas lights but they suggest 45 watt bulbs.
TIA
ron rader
Playa del Rey CA
XK 150 3.8L FHC

4

In reply to a message from F Ronald Rader sent Mon 13 Jun 2011:

try some 7’’ SFT700 with quartz bulbs… I use s a set of these on my
120… t5he oncoming drivers hate them… but I can SEE!..–
godfrey
pender island bc, Canada
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5

Godfrey,
Are the quartz better than the halogens. I have halogens in my SFT700s, and they
are a big help, but for the mountains, I need the best light I can get.
Thanks,
Knight----- Original Message ----
From: godfrey artrageus@shaw.ca
To: xk@jag-lovers.org
Sent: Tue, June 14, 2011 12:28:52 AM
Subject: Re: [xk] driving lights

In reply to a message from F Ronald Rader sent Mon 13 Jun 2011:

try some 7’’ SFT700 with quartz bulbs… I use s a set of these on my
120… t5he oncoming drivers hate them… but I can SEE!..

godfrey
pender island bc, Canada
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
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6

Knight,
I think “Quartz” and “Halogen” are two names for the same thing.
When they first came on the market, they were called “Quartz Iodine”. Iodine is a halogen, so it changed to “Quartz Halogen”, and may be other halogens were used.
Roar>________________________________

From: Knight Martorell pknight120@yahoo.com
To: xk@jag-lovers.org
Sent: Tuesday, June 14, 2011 6:51 AM
Subject: Re: [xk] driving lights

Godfrey,
Are the quartz better than the halogens. I have halogens in my SFT700s, and they
are a big help, but for the mountains, I need the best light I can get.
Thanks,
Knight

----- Original Message ----
From: godfrey artrageus@shaw.ca
To: xk@jag-lovers.org
Sent: Tue, June 14, 2011 12:28:52 AM
Subject: Re: [xk] driving lights

In reply to a message from F Ronald Rader sent Mon 13 Jun 2011:

try some 7’’ SFT700 with quartz bulbs… I use s a set of these on my
120… t5he oncoming drivers hate them… but I can SEE!..

godfrey
pender island bc, Canada
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php –

7

In reply to a message from F Ronald Rader sent Mon 13 Jun 2011:

Ron
Do you want high powered driving lights, or head lights?
There is a difference. Driving lights are designed for day
time use, so people can see you coming, and, of course, head
lights are designed so you can see where you are going. For
night time driving, I would suggest improving your head
lights. Quartz/Halogen bulbs are available up to 60 watt, I
believe the bulb is a number H4. There are high intensity
bulbs available up to 100 watt, but I don’t know if they are
legal in CA.
Sometimes the mounting base of the new high intensity bulbs
needs to be modified to fit the original Lucas lamps. If you
do that, make sure you don’t touch the bulb, or if you do,
wipe it with alcohol afterwards. Otherwise the oil from your
fingers will cause them to blow up when you turn them on.
Joel–
ex jag, '66 E-type S1 4.2, '56 XK140dhc, '97 XJ-6
Denison, TX, United States
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8

In reply to a message from ex jag sent Tue 14 Jun 2011:

Joel,

I suspect your use of the term driving lights to connote daytime
driving situations is a creation of modern USA usage, and is not
really universally accepted.

Wikipedia describes such lights as ‘‘daytime running’’ lights, and
defines driving lights more in the manner that I suspect Ron
intended; auxiliary lamps for additional illumination on dark roads
at night.

Karl–
The original message included these comments:

There is a difference. Driving lights are designed for day
time use, so people can see you coming, and, of course, head
lights are designed so you can see where you are going. For

–
karl
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9

In reply to a message from F Ronald Rader sent Mon 13 Jun 2011:

Hey there :slight_smile: in my quartz lights they are just a standard plug
in … no modification required. Jaguar did use these for night time
driving… but I find that the highest intensity bulbs are a
substantial improvement. If I remember correctly PIAA make them.
105 watt I think… maybe higher. aircraft landing lights anyone?
They work well to get idiots to move over too! Try FOUR of these
babies on your bumper!–
godfrey
pender island bc, Canada
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10

Thanks, Roar, for clearing that up.
All the best,
Knight----- Original Message ----
From: Roar Sand roarsandnorge38@att.net
To: “xk@jag-lovers.org” xk@jag-lovers.org
Sent: Tue, June 14, 2011 9:46:07 AM
Subject: Re: [xk] driving lights

Knight,
I think “Quartz” and “Halogen” are two names for the same thing.
When they first came on the market, they were called “Quartz Iodine”. Iodine is
a halogen, so it changed to “Quartz Halogen”, and may be other halogens were
used.
Roar

From: Knight Martorell <@Knight_Martorell2>
To: xk@jag-lovers.org
Sent: Tuesday, June 14, 2011 6:51 AM
Subject: Re: [xk] driving lights

Godfrey,
Are the quartz better than the halogens. I have halogens in my SFT700s, and they

are a big help, but for the mountains, I need the best light I can get.
Thanks,
Knight

----- Original Message ----
From: godfrey artrageus@shaw.ca
To: xk@jag-lovers.org
Sent: Tue, June 14, 2011 12:28:52 AM
Subject: Re: [xk] driving lights

In reply to a message from F Ronald Rader sent Mon 13 Jun 2011:

try some 7’’ SFT700 with quartz bulbs… I use s a set of these on my
120… t5he oncoming drivers hate them… but I can SEE!..

godfrey
pender island bc, Canada
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php –

11

In reply to a message from karl sent Tue 14 Jun 2011:

Karl
I stand corrected, as I know better than to argue with the
Wikipedia encyclopedia:-)
I have a set of SR700s on my 140, and I have tried the fog
lamp bulbs, and driving lamp bulbs. Neither of which made
much difference in illumination for night time driving. It
wasn’t until I installed the 100 watt high intensity bulbs
in my ‘‘J’’ lamps, that I began pissing off oncoming traffic.
I did, however, have to bend the tabs a little on the bases
for the bulbs to fit properly in the lamps.
Joel–
ex jag, '66 E-type S1 4.2, '56 XK140dhc, '97 XJ-6
Denison, TX, United States
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12

In reply to a message from ex jag sent Tue 14 Jun 2011:

What about a pair of those really small minature PIAA
driving lights mounted in the front wing vents or under the
front bumper?

Or a single high powered modern aux lamp mounted behind the
grill?

http://www.myhellalights.com/index.php/default/auxiliary-lamps/xenon-lamps/rallye-4000i-xenon1/

http://www.piaa.com/Lamps/Lamp-pages/800hid.html--
John
MA, United States
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