Head lamp bulbs.
Head lamp bulbs.
Author
Discussion

chris43

Original Poster:

351 posts

279 months

Thursday 15th January 2004
quotequote all


I've got a pair of H4 which I know are not road legal but if I should want to use these as they are marked 12volt 260/200w what problems would I have?
Is there a way to overcome any problems without resortong to major rewiring?

mongoose

4,360 posts

284 months

Thursday 15th January 2004
quotequote all
nooooo.whatever you do,dont do it!!even with std bulbs the wiring is barely adequate.ive heard of people fitting uprated bulbs with no probs,but none with that high a rating!both left and right lights run off the one line as std,and the lights are noticeably brighter if you modify the loom so as each has its own line.if you want brighter lights then modify loom or fit the higher output for std rating type bulb from demon tweeks and the like.i think modwise do a good loom mod kit and also sell uprated bulbs aforementioned.

Trefor

14,780 posts

312 months

Thursday 15th January 2004
quotequote all
Mine (and a number of others) has 100/80 bulbs. Not sure where you got these from, but you'll probably melt the loom and the car with them!

>> Edited by Trefor on Thursday 15th January 18:07

chris43

Original Poster:

351 posts

279 months

Thursday 15th January 2004
quotequote all
Trefor said:
Mine (and a number of others) has 100/80 bulbs. Not sure where you got these from, but you'll probably melt the loom and the car with them!

>> Edited by Trefor on Thursday 15th January 18:07


100/80 OK for the loom or still a risk?

hut49

3,544 posts

291 months

Thursday 15th January 2004
quotequote all
Trefor said:
.....you'll probably melt the loom and the car with them!

>> Edited by Trefor on Thursday 15th January 18:07


Not to mention the retinas of anybody who happens to get a full-dose. Imagine giving way and getting a quick burst from those as a 'thank-you'!

dannyboyo

2,392 posts

308 months

Thursday 15th January 2004
quotequote all
hut49 said:

Trefor said:
.....you'll probably melt the loom and the car with them!

>> Edited by Trefor on Thursday 15th January 18:07



Not to mention the retinas of anybody who happens to get a full-dose. Imagine giving way and getting a quick burst from those as a 'thank-you'!


And everytime you flash someone the car idle drops to about 200!!

With 80/100 bulbs, on dip they'll be drawing about 11.5 amps. On full beam about 14.5 amps. And I'm not sure, but when you flash don't both dipped and full come on at the same time if you already have the dipped lights on?? If so then it'll be drawing about 26 amps. All this is working on the voltage been 13.8v. If it's 12v then times these figures by 1.15.

I think I'm right in thinking this anyway, anyone.....?

hongkongfooi

643 posts

276 months

Thursday 15th January 2004
quotequote all
hut49 said:

Trefor said:
.....you'll probably melt the loom and the car with them!

>> Edited by Trefor on Thursday 15th January 18:07



Not to mention the retinas of anybody who happens to get a full-dose. Imagine giving way and getting a quick burst from those as a 'thank-you'!



Indeed, don't let those guns out to play or we will all be blind!! lol

jonnyb

2,590 posts

281 months

Saturday 17th January 2004
quotequote all
Im going to fit the mod-wise better lights kit then upgrade the lights to 100/80 (only for off road use!!)

The improvement in the wiring with the kit should take the higher wattage lights with no probs. Not sure about 200w lights though. It does sound a bit extream or are you trying to get in contact with another planet!?!

kevin secker

249 posts

312 months

Saturday 17th January 2004
quotequote all
Hi Guys

I changed may headlight bulbs over a while back for performance "+50%" bulbs. Had the whole assembly back together before I realised that the originals (the ones I'd just replaced!!!) were 100/80 bulbs. I have had my car from new so these were the ones it left the factory with. I had to do the whole job again.

Kevin

lateconvert

220 posts

301 months

Saturday 17th January 2004
quotequote all
I fitted the Modwise kit to beef-up the wiring loom.
Even with standard bulbs they were brighter.
Then after upgrading to Philips VisionPlus (+50%) they are now as good as any non-Xenon lights.

Trefor

14,780 posts

312 months

Saturday 17th January 2004
quotequote all
kevin secker said:
Hi Guys

I changed may headlight bulbs over a while back for performance "+50%" bulbs. Had the whole assembly back together before I realised that the originals (the ones I'd just replaced!!!) were 100/80 bulbs. I have had my car from new so these were the ones it left the factory with. I had to do the whole job again.

Kevin


Exactly what I found already in my headlights when I looked. 100/80s. Not melted since they were installed in 1995 so the factory must have thought they'd be OK (what do they know). I'd say Modwise's loom upgrade would make sense if you're worried. After all this time I'm not going to bother with mine though.

5ltr-chim

635 posts

286 months

Sunday 18th January 2004
quotequote all
EEC rules allow 80/100 and therefore to get type approval they have to allow for this.
They are legal to use in this country - anything higher is neither legal nor safe loading for the loom.