Thread: A 80/100W Bulb on D2?

Yes. But the high low switch in the stalk WILL burn out, might take a couple years but it will. Fit relays for high and low.

Originally Posted by assafde

Can I fit an OSRAM 80/110W bulb as a replacement on a 2001 D2 headlamps?
Bulb specs

Put in a +50 to +120 percent (extra light output) bulb instead. +50 is about the same output as a standard 80 watt without extra heat, current etc. Or try CREEs LED replacement (1800 to 2000 lumens) not the cheapies on ebay. Bad news is CREEs are $130 to $250 a pair... and not ADR compliant.

Yes, I thought the glass was plastic until someone with a D2 broke a headlight on a club trip!LOL.
If you have poly carbonate "glass" you have to be sure to specify "UV cut" globes and I spent lots of time finding them as I thought the headlight glass in a D2 was poly, but no it is glass.
I fitted 120/80? to mine with a loom and its great.

I first tried +50 and they are nothing like higher wattage bulbs. Even the Osram site lists the output spec as the same as the stock bulb, only the colour is different. The apparent light is brighter but not really so much.
I have +50s in my other car as it doesn't have a loom.
Regards Philip A

I've run 90/100's for a long time. The on,y part for me to cause problems has been the plugs into the back of the light bulbs - they melt. I've since changed to a traxide loom which has been good.

Making the most of headlights.
Upping the wattage of your bulbs maybe a good idea but remember the wattage is not relevant to output which is measured in lumens

Light pattern and focus play a big part in how clear and defined the beam is.

Running with a a relay is a good idea for your switch circuit also the closer /more direct to the battery the bulbs are the better less power lost due to resistance in wiring.
Try and test the battery volts output
then measure the feed to the headlight bulb the difference is what is lost more than 1v is a lot.

Ceramic plugs are a good idea if you run high wattage bulbs yes they melt the plastic plugs new plugs can also reduce resistance due to corrosion.

Pre facelift lenses are glass.
It is less prone to scratching than plastic but it can still be hazy on cars that are old or exposed to sandstorms.

Good quality branded bulbs usually outlast cheaper bulbs.

I would recommend night breaker bulbs brighter and better pattern the the previous H4 bulbs fitting to my D2 and still legal.

As looking into the OSRAM NIGHT BREAKER UNLIMITED bulbs, the relevant model is 64193NBU - Link to technical info-Bulb family sheet

BULBs are P43T mount
display the following:
it's a 60/55W
1650/1000 ln power

While the "Off-Road" is an OSRAM 62204
It's a 100/90 W
2900/1700 lm in power

The lumen difference is very significat here

the Night breaker is 5A while the "Off-road" is 8.3A

Do you recomend replacing the bulb socket to a ceramic one? link

I use the 60/55 and use standard plastic plugs.
But use two 30amp relays one dip one full beam.
Some may say overkill but it gives a bit more volts at bulb
and switch wiring is just that not power.

I run 60/55 as it is ample for my needs I have used discharge lights
and higher wattage bulbs on other cars and pleased with their output
BUT it can be illegal if you get stopped and checked and bulbs
have the incorrect rating or type you can get busted.

Worth trying the volts test before you buy bulbs as relay can
make a big difference.

Does anyone had used this conversion kit?
From eBay