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Toran's Avatar
 
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H4 LED Bulbs?

Hello Good People,

I upgraded the wire harness and headlights to an H4 setup a few years ago.
I recently heard about H4 LED Bulbs and was wondering if anyone had any experience with them that would be worth sharing.

T.I.A.

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86 944na Alive and Rollin
Old 05-17-2014, 02:09 PM
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Been done but IMO $400 a pair is a little too high but prices should come down in the next few years.

Here you go: RL LED H4 Headlights
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Last edited by 9FF; 05-18-2014 at 04:18 AM..
Old 05-17-2014, 03:40 PM
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$400 a pair sounds more like a HID setup instead of LED bulbs!
Hmmm...I cannot get the link you provided to work.
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Old 05-17-2014, 03:45 PM
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Quote:
Originally Posted by Toran View Post
...Hmmm...I cannot get the link you provided to work.
Try this: LED headlight upgrade completed - Rennlist Discussion Forums
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9TECHNIK | TRANSAXLE ÄRA
1986 944 (Street); 1986 944 (Track); 1986 951; 1989 951 (3.0L 8V); 2000 996 Cab.
Old 05-17-2014, 07:24 PM
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+1 on the GE nighthawk lights. Great solution that will outlast the car and provides light as good as HID without the annoying glare for other drivers or the extreme load on the electrical system. They are also lighter helpng those with cars that are trying be svelt.
Old 05-17-2014, 07:48 PM
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Thanks for the link!
Those GE nighthawk lights look great, however the price tag at this moment doesn’t.

The search continues...
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Old 05-18-2014, 04:50 AM
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LED Headlights

I posted this over at the 911 forum, and want to share it here as well.

Testing Some LED Headlights



Cheers
Engelbert
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Old 10-07-2015, 05:26 AM
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I was thinking about changing to those same headlights...
did you buy the genuine JW SPeaker items or the Ebay versions?
Old 10-07-2015, 07:14 AM
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You don't need an entirely new headlight. There are H4-compatible LEDs.

This company caters to the 928 crowd: CREE LED car Upgrade Kits | Product Categories | CREE LED Lights & Bulbs for Car HeadLights - Fog Lights & Porsche 928 Spares

or

https://www.superbrightleds.com/search/led-headlight-bulbs-conversion-kits/h4/filter/Cross_Reference_Number,H4,21,215:

Hugo
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Old 10-07-2015, 09:33 AM
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the lensing is better on the ones he has installed in the last picture.

H4 is OK, E-code is better, but the LED with the sharp cutoff is even better.
Old 10-07-2015, 10:30 AM
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The #4 above are now DOT approved, and available on my website.



Carmagic, LED Gauge Light for 911 Porsches. LED Headlights

Cheers
Engelbert
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Old 01-17-2016, 12:07 PM
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Quote:
Originally Posted by rothaus View Post
The #4 above are now DOT approved, and available on my website.



Carmagic, LED Gauge Light for 911 Porsches. LED Headlights

Cheers
Engelbert
I've been thinking about something like this for my old bike - will you sell an individual assembly?
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Old 01-17-2016, 02:17 PM
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I'll be definitely interested in a set of those soon.. Nice..
Old 01-17-2016, 02:19 PM
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Quote:
Originally Posted by redstrosekNic View Post
I've been thinking about something like this for my old bike - will you sell an individual assembly?
Yes, I sell them individual if needed. Just let me know.

Thanks
Engelbert
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Old 01-18-2016, 05:16 PM
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Has anyone tried the newest H4 LED bulbs that are plug and play? I assume they will work well on the standard reflectors and they do seem to be in the $50 a pair price range now. I have tried HID and they are OK, but have a lot of RFI in the electrical system.

I am not interested in a $1000 solution here. I have done a bit of searching on the site here and I am a bit surprised that I don't fine much on the newest generation of H4 Led bulbs.
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Old 02-09-2016, 03:26 PM
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I just tried those 2 weeks ago - total garbage.
They only put out a few spots of light rather than a full 360 due to the LED chip orientation vs. the reflector.

I put my years-old Halogen bulbs back in within about 30 minutes, and returned the LEDs.
Old 02-09-2016, 03:36 PM
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the lens of a headlight is a very high tech piece of equipment. it is designed to work with a specific bulb. while swapping out to a different bulb may "seem" like it's better, it may in fact be worse. more light is not necessarily good. the color of the light is just as important as the brightness. a lens refracts light, which can easily be adversely affected by installing the wrong bulb. for example, blue is bad. the human eye loses its ability to see color at night, and this is exacerbated in blue light. this is particularly important in peripheral vision.

i see a lot of guys installing brighter bulbs, especially behind old and/or dirty lenses, but in reality just ending up with more glare than anything else.

you are much better off making sure the insides as well as the outsides of the lenses are clean, free of fogging, scratches, and hazing.
Old 02-09-2016, 04:27 PM
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Quote:
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you are much better off making sure the insides as well as the outsides of the lenses are clean, free of fogging, scratches, and hazing.
+1
the light output of my Subaru must have doubled after i gave the plastic lenses a decent polish.

they weren't severely yellow or scratched or anything, just a light haze, but holy cow they are bright now.
Old 02-09-2016, 05:36 PM
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yup - it's not something most people notice either, or would think of if they did. the knee jerk reaction is to replace the bulb. unfortunately that is almost never the right thing or best thing to do.
Old 02-09-2016, 06:02 PM
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Quote:
Originally Posted by v2rocket_aka944 View Post
I just tried those 2 weeks ago - total garbage.
They only put out a few spots of light rather than a full 360 due to the LED chip orientation vs. the reflector.

I put my years-old Halogen bulbs back in within about 30 minutes, and returned the LEDs.
Really??

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Old 02-09-2016, 06:27 PM
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