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  #1  
Old 01-23-2018, 09:32 PM
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LED H3/H4 bulbs ... who has advice and experience with them?

I'm putting my 300TD back on the road and want a bit better lighting- I already have driving lights where the fogs were, and aftermarket headlights which take a H4 bulb. The driving lights take an H3. I'd like to go to 6000K LED bulbs. Looking over Amazon the choices are endless.

Let's hear your experience!

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  #2  
Old 01-23-2018, 10:24 PM
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Personally I think you'll have a hard time finding an LED bulb that will work better than a H3 with the reflectors. The light pattern from an LED is very different than an incandescent.

What year is your 300TD? w123 I assume? If so I have seen people who like the truck tek LED lights, but they replace the entire sealed beam assembly with an LED one.
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1992 BMW 525i -traded in
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  #3  
Old 01-23-2018, 10:42 PM
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You're not going to find an LED that outputs as much light as your stock halogens. If you want more light on the road the only way to go is HID projectors.
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  #4  
Old 01-23-2018, 11:03 PM
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Basically, don't. At best you'll be downgrading(and you'll be very fortunate to only be doing this), at worst you'll become a dangerous menace to yourself and other drivers.

This covers LEDs as well:

https://www.danielsternlighting.com/tech/bulbs/Hid/conversions/conversions.html
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  #5  
Old 01-23-2018, 11:22 PM
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Quote:
Originally Posted by OM617YOTA View Post
Basically, don't. At best you'll be downgrading(and you'll be very fortunate to only be doing this), at worst you'll become a dangerous menace to yourself and other drivers.

This covers LEDs as well:

https://www.danielsternlighting.com/tech/bulbs/Hid/conversions/conversions.html
That site is at least a decade out of date. There are hid projector retrifits available today that can put more light on the road with less glare than an H4 low beam.

Last edited by tjts1; 01-23-2018 at 11:44 PM.
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  #6  
Old 01-23-2018, 11:32 PM
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Quote:
There are hid projector retrifits
Don't these replace the entire reflector assembly? If so then that site is still 100% accurate.
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2003 Volvo V70 5 Speed
1997 E290 Turbo Diesel Wagon -traded for above, an amazingly comfortable car to drive, great drivetrain, but the rust, oh my god the rust
1992 BMW 525i -traded in
1990 Silver 300TE -Sold Loved the wagon, hated the M103
1985 Grey 380SE Diesel Conversion, 2.47 rear end, ABS -Sold, really should have kept this one
1979 Silver 300D "The Silver Slug" -Sold
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Old 01-23-2018, 11:45 PM
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Quote:
Originally Posted by dude99 View Post
Don't these replace the entire reflector assembly? If so then that site is still 100% accurate.
No. Daniel Stern Lighting is wrong and out of date.
https://youtu.be/0yVhZVVI9d0
This type of conversion is pretty common now. There's no cutting, no glueing. The projector is designed to mount inside a conventional reflector.
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  #8  
Old 01-24-2018, 12:02 AM
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Quote:
Originally Posted by tjts1 View Post
That site is at least a decade out of date. There are hid projector retrifits available today that can put more light on the road with less glare than an H4 low beam.
I agree, a proper projector retrofit can be an upgrade.

That's not what's being discussed here. Apples to hand grenades.
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Old 01-24-2018, 07:43 AM
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To the OP, I don't know of any drop-in LED replacement for H4/H3 that works properly in a conventional headlight. I went through this last year with my MKIV Golf. After hours of research and reading posts by folks who tried to use the LEDs in the stock VW housing, I finally opted for a projector retrofit (that I am very happy with).


Quote:
Originally Posted by tjts1 View Post
No. Daniel Stern Lighting is wrong and out of date.
https://youtu.be/0yVhZVVI9d0
This type of conversion is pretty common now. There's no cutting, no glueing. The projector is designed to mount inside a conventional reflector.
tjts1, who is making projector retrofit kits like that for a W123?


For better lighting, I put a pair of e-code hella replacements in my former W123. Definitely worth the price and the improvement in visibility was stunning: Hella E-Code H4 Headlights - PAIR


There are 7" round drop in projectors made by Truck Tek. But I don't have any personal experience with them. They will look out of place on a W123 imo. https://www.truck-tek.com/Truck-Tek-Accessories-Wholesale-Catalog/index.php?id_product=78&controller=product
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  #11  
Old 01-24-2018, 10:20 AM
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Nope and nope. Ignoring any beam pattern issues(and there are plenty!), the H3 version doesn't even have enough heat sinking capability to operate at any kind of output for any length of time.

Hella or Cibie E-codes are a good option for sealed beam replacements, I have Hellas on my truck. There are also LED sealed beam replacements made by JW Speaker and others, which are upgrades in light output and beam pattern, while reducing power consumption at the same time. That's the route I'd go, if purchasing today. Note that it is IMPORTANT to buy a quality brand and that's not going to happen for $40. Lots of dangerous junk in the LED sealed beam replacement realm as well.
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Last edited by OM617YOTA; 01-24-2018 at 10:59 AM.
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  #12  
Old 01-24-2018, 10:25 AM
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glad I did not waste money,I was thinking less demand on charging system with leds. My w140 will throw a fit if bulbs are not stock.
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Old 01-24-2018, 11:01 AM
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The problem with those hid projector retrofits is that to function correctly they need a clear lense, like the one the video showed.There was a fellow a couple years ago that polished his euro lens clear and then fitted a projector behind it, that was correct.

As far as retrofitting in an incandescent housing, Daniel Stern is correct, an hid bulb, or led will not function well or correctly in a incandescent lense and reflector assembly.

If you want to change the lense, and the reflector/projector assembly, that's a different matter which is not what his site is discussing.
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2003 Volvo V70 5 Speed
1997 E290 Turbo Diesel Wagon -traded for above, an amazingly comfortable car to drive, great drivetrain, but the rust, oh my god the rust
1992 BMW 525i -traded in
1990 Silver 300TE -Sold Loved the wagon, hated the M103
1985 Grey 380SE Diesel Conversion, 2.47 rear end, ABS -Sold, really should have kept this one
1979 Silver 300D "The Silver Slug" -Sold
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  #14  
Old 01-24-2018, 12:29 PM
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Quote:
Originally Posted by dude99 View Post
The problem with those hid projector retrofits is that to function correctly they need a clear lense, like the one the video showed.There was a fellow a couple years ago that polished his euro lens clear and then fitted a projector behind it, that was correct.
.
You can get clear lens 7" round hosings for the w123.

Quote:
Originally Posted by Bengoshi2000 View Post
tjts1, who is making projector retrofit kits like that for a W123?

LED 7" round projector sealed beam retrofit.

https://www.superbrightleds.com/moreinfo/led-headlight-bulbs-conversion-kits/7-round-h6024-led-projector-headlights-led-headlights-conversion-sealed-beam/3146/

Quote:
Originally Posted by oldsinner111 View Post
glad I did not waste money,I was thinking less demand on charging system with leds. My w140 will throw a fit if bulbs are not stock.
A 55w hid won't trigger any errors.

Last edited by tjts1; 01-24-2018 at 12:42 PM.
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  #15  
Old 01-24-2018, 10:49 PM
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I have Hella E codes and VW Golf 5.5 high beams in place of the fogs. I was simply looking at replacing the bulbs with LED units. I did ask for experience as well as advice- but no one has relayed their LED bulb experience. Not that I doubt, but I'm kinda from Missouri- "show me" ....

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