H4 LED Bulbs?

Toran · 05-17-2014, 01:09 PM

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.

9FF · 03:18 AM

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

Toran · 05-17-2014, 02:45 PM

$400 a pair sounds more like a HID setup instead of LED bulbs!
Hmmm...I cannot get the link you provided to work.

9FF · 05-17-2014, 06:24 PM

Quote:

Originally Posted by Toran

...Hmmm...I cannot get the link you provided to work.

Try this: LED headlight upgrade completed - Rennlist Discussion Forums

fiat22turbo · fiat22turbo's Garage

+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.

Toran · 05-18-2014, 03:50 AM

Thanks for the link!
Those GE nighthawk lights look great, however the price tag at this moment doesn’t.

The search continues...

rothaus · 10-07-2015, 04:26 AM

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

Testing Some LED Headlights

Cheers
Engelbert

v2rocket_aka944 · 10-07-2015, 06:14 AM

I was thinking about changing to those same headlights...
did you buy the genuine JW SPeaker items or the Ebay versions?

hbueno · hbueno's Garage

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

v2rocket_aka944 · 10-07-2015, 09:30 AM

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.

rothaus · 01-17-2016, 11:07 AM

The #4 above are now DOT approved, and available on my website.

Carmagic, LED Gauge Light for 911 Porsches. LED Headlights

Cheers
Engelbert

redstrosekNic · redstrosekNic's Garage

Quote:

Originally Posted by rothaus

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?

dgcantrell · dgcantrell's Garage

I'll be definitely interested in a set of those soon.. Nice..

rothaus · 01-18-2016, 04:16 PM

Quote:

Originally Posted by redstrosekNic

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

dicklague · dicklague's Garage

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.

v2rocket_aka944 · 02-09-2016, 02:36 PM

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.

flash968 · 02-09-2016, 03:27 PM

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.

v2rocket_aka944 · 02-09-2016, 04:36 PM

Quote:

Originally Posted by flash968

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.

flash968 · 02-09-2016, 05:02 PM

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.

dicklague · dicklague's Garage

Quote:

Originally Posted by v2rocket_aka944

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??