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Offline mac

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« on: October 18, 2007, 09:34:23 »
Managed to acquire some uprated H4 bulbs last week in Riga - they are 100/80 as opposed to the legal 60/55 (ignored the 130/90's they had!) has anybody tried bulbs of this size in a TD5 for "off road" and did they affect wiring, fuses etc? Never thought of the consequences when I handed over the money.
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Offline Evilgoat

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« Reply #1 on: October 18, 2007, 09:37:50 »
I'm sure someone will be along soon. Not sure I like the look of the wiring on an older Disco 1 though, I certainly wouldnt try it in mine. Although given the charred mess of the connectors I think someone may have.
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Offline Jimbo

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« Reply #2 on: October 18, 2007, 12:24:43 »
Been running them in mine for a few months now, nothing seems to have melted, no fuses blown..........just better visibility at night !
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Jim

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Offline barmiebrumie

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« Reply #3 on: October 18, 2007, 12:53:12 »
Had them in my 200tdi for a year with no problems
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John.

Offline hobbit

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« Reply #4 on: October 18, 2007, 12:56:20 »
I run them in my 200 also, but upgraded the wiring, fuses and relayed the system first, didn't like the look of the fishing wire the car had
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Kev

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Offline hairyasswelder

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« Reply #5 on: October 18, 2007, 20:25:38 »
:shock:  Put some in my RR Classic and burned out the main/dip switch  :shock:
Was going to put them on relays but just fitted some more spots  :wink:
Think they are somewhere in the garage now  :roll:
Steve
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Offline SteveGoodz

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« Reply #6 on: October 18, 2007, 21:56:57 »
You're practically doubling the current draw through the cables ~ I doubt Land Rover allowed for this when deciding which size wiring or connector ratings to use.

The simplest modification would be to fit relays close to the back of the light units. Use the existing wiring to energise the relay coil with suitably sized wiring direct from the battery to the bulbs via the relay contacts (with fuses in-line, of course). Remember fuses are intended to protect the wiring NOT the bulbs.
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Offline thermidorthelobster

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« Reply #7 on: October 18, 2007, 22:04:21 »
I've fitted some Halfords "super-bright" or some such to my TD5.  Same current but much brighter bulbs, and the beam pattern is much smoother.  They're well worth the money.
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David French
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Offline Range Rover Blues

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« Reply #8 on: October 19, 2007, 01:03:44 »
My LSE had 100/80s when I bought it.  They were so good I didn't realise untill I removed them for the Hlafrauds super-bright things which are at least as good TBH.

One problem is that with the extra current draw any slight resistance in the wiring has a greater effect ie bigger voltage drop at the fault and the light output and life expectancy of Halogen bulbs is very voltage sensitive.

http://www.seoc.co.uk/halogenhead.htm
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