H11 to H9 Headlight Bulb Conversion

H11 to H9 Headlight Conversion | PriusChat

 

Anybody have a picture of the bulb tab and connector conversion? Thanks!

 

Your fuse will likely blow before you melt any wiring. Whether or not there are any effects long term, on your light housings, etc. remains unanswered.

 

I do not have my manual close by but at 55w you will draw 4.5 amps at 12 volts. So 65w will draw 5.4 amps. If the low beam fuse is 15a you should be fine. Check your owners manual.

 

Apparently there is a kit you can buy so you don't even have to modify the H9 bulbs. I assume they modify the metal part for you and then are just including an H9 to H11 adapter wire, along with the bulbs:

Bulbzilla Bulb Transplant Kit. Substitutes H9 bulbs for H11's to INCREASE OUTPUT BY 60%! Everything you need to convert one set of low beams or fog lights. Includes two H9 standard bulbs. Turn your lights into High Performance Lights with Bulbzilla! : Amazon.com : Automotive

There's also just the adapter wires only here:

Bulbzilla Bulb Transplant Kit. Substitutes H9 bulbs for H11's to INCREASE OUTPUT BY 60%! Kit converts one set of low beams or fog lights. Turn your lights into High Performance Lights with Bulbzilla! : Amazon.com : Automotive


Looks interesting.

 

Geez, for $54 I'd sell them too if there wasn't the elephant in the room called liability.

Buy the bulbs for under $20 and modify to fit, I'm talking about German made Osram or Philips. You don't even know if you're getting good quality bulbs or not with that Amazon kit. Could be $2 Chinese bulbs, now that's a profit lol.

SCH-I535

 

That makes sense although it would be nice to have the adapter wires at least. Especially given that the H9 bulbs are only supposed to last a couple hundred hours. Who wants to be cutting bulbs that often?

 

Do the math.

For me, I drive 30 minutes one way 5 times per week, on average, with my headlights on. Times 48 weeks per year. That's only 120 hrs. 500 hrs average life for the H9 bulbs gives me over 3 years.

Honestly, I'd be happy to get 1 year out of them because they're so inexpensive compared to the "premium" H11 bulbs that go for at least twice the price.

SCH-I535

 

I wish there was someone who would measure the temperature of an h11 bulb to see how it compares to that of an h9 bulb in the same headlight projector. Would also be nice to know if the wiring gets at all warmer running an H9

 

Do a Google search for the H9 conversion. Someone did take temperatures of the H9 vs the H11. Can't remember which forum it was on, maybe a Subaru WRX forum.

It was basically a non issue.

SCH-I535

 

Here's the link:

H11 to H9 conversion. DIY with temps - NASIOC

SCH-I535

 

Thanks.

 

Why is there such a discrepancy in pricing of h9 bulbs?

Looking on Amazon for example: http://amzn.to/1lTH56s

Philips ones go for as little as $15. a pair and others are as high as almost $70. a pair!

Are the more expensive ones any better? I know they are trying to be 'whiter'.

I'm happy with the Philips ones I'm using now and the brightness is an improvement over the stock H11 bulbs, I would like a slightly whiter light if possible.

 

I've tried several H9 bulbs now, including some blue ones that give "whiter" light.

The visible light on the road, so you can make out detail and potholes, is much better with the clear Osram bulbs than with the blue bulbs.

If you want the blue ones for aesthetics, go for it, but the warmer temp bulbs give you more effective light on the road.

SCH-I535

 

Good to know, thanks. I guess it's not worth it to buy the expensive bulbs.

 

So I was doing the mod last night on an extra set of H9 bulbs and thought I would video it.

This could come in handy for those searching, etc:

Thanks to xliderider for the Black & Decker suggestion. Great tool for the price.

 

Great video mediahound!

Very clear and easy to follow. Here is a shot of the bits I use. The spiral bit is good to use because it's blunt on the end, so you can remove material flush, all the way down to the bottom:



If you hold the RTX with this grip, you will have better control of the tool for precision work.



The red rubber seal at the bottom of the bulb base can be removed and replaced easily so you don't have to worry about grinding any of it away while working on the tab mod.

SCH-I535