Let there be light (Review of Fellman SMD/LED lamps)
- Harold Singh
- 356 Fan
- Posts: 483
- Joined: Sat Sep 27, 2014 10:43 am
- Tag: Cooling with air
- Location: Richmond, VA
Let there be light (Review of Fellman SMD/LED lamps)
I must say, I see why no one really wrote anything. It just does exactly what Jeffrey said.
It's so easy to install that if you can install a headlamp sealed beam or a rear tail lamp bulb, it's a 5 minute job. I took 40 minutes with me cleaning things and trying to document what I was doing.
The first thing to keep in mind is LED bulbs are sensitive to connections so I made sure all my connections were good before I received my LED headlamps and rear brake/turn signal bulbs.
Also when I installed them I tucked the wires down away from the heat sink.
Next simply pop out the headlamp by removing the one screw that holds the assembly in and lay them out to remove the retaining parts.
I have one photo showing where to press that gives you lots of leverage on the lever side of the retainers. Then swap out! I noticed there IS a DOT designation on the lens for those that drive every day or need to pass a local inspection.
Here is the comparison picture. This is the part I think we have really been missing!!
I took my photo from an angle and focused on the LED lamp so the both lamps weren't just whiting out the photo.
And then with both! Again, from this angle you can really see the dramatic difference! This is whiter and brighter than the halogens in my late model Ridgeline and maybe as bright as the HID lamps in my 993.
The rear lamps bulbs are very bright. Although, most suppliers use a red illuminating bulb behind red lenses. These are white but I think that enhances the brightness. Keep in mind the original bulbs are white. Easy install as well.
The only caveat here is the load is not significant enough to light the dash indicator for the signals even with the new relay installed it will not show the signal in the dash. Jeffrey said there is a way to wire the ground to fix this but he has not written the procedure yet.
It's so easy to install that if you can install a headlamp sealed beam or a rear tail lamp bulb, it's a 5 minute job. I took 40 minutes with me cleaning things and trying to document what I was doing.
The first thing to keep in mind is LED bulbs are sensitive to connections so I made sure all my connections were good before I received my LED headlamps and rear brake/turn signal bulbs.
Also when I installed them I tucked the wires down away from the heat sink.
Next simply pop out the headlamp by removing the one screw that holds the assembly in and lay them out to remove the retaining parts.
I have one photo showing where to press that gives you lots of leverage on the lever side of the retainers. Then swap out! I noticed there IS a DOT designation on the lens for those that drive every day or need to pass a local inspection.
Here is the comparison picture. This is the part I think we have really been missing!!
I took my photo from an angle and focused on the LED lamp so the both lamps weren't just whiting out the photo.
And then with both! Again, from this angle you can really see the dramatic difference! This is whiter and brighter than the halogens in my late model Ridgeline and maybe as bright as the HID lamps in my 993.
The rear lamps bulbs are very bright. Although, most suppliers use a red illuminating bulb behind red lenses. These are white but I think that enhances the brightness. Keep in mind the original bulbs are white. Easy install as well.
The only caveat here is the load is not significant enough to light the dash indicator for the signals even with the new relay installed it will not show the signal in the dash. Jeffrey said there is a way to wire the ground to fix this but he has not written the procedure yet.
Last edited by Harold Singh on Mon Nov 16, 2015 10:40 am, edited 4 times in total.
Harold
In the garage:
1964 356C Irish Green
1995 993 GP White
In the garage:
1964 356C Irish Green
1995 993 GP White
- Alex Parmenter
- 356 Fan
- Posts: 370
- Joined: Sat Oct 20, 2012 5:57 pm
- Location: Houston, TX
Re: Let there be light!(or my review of Fellman LED/SMD lamp
Excellent write up!! Great seeing the side by side comparison!! Many thanks for posting
Always searching for parts for my Oct 54 Pre A coupe including these:
2 piece engine case to #336XX
Gear knob
Front bumper
Passenger sun visor
Bosch SH/ZS4/1 Ignition switch
Vigot jack (late 54)
2 piece engine case to #336XX
Gear knob
Front bumper
Passenger sun visor
Bosch SH/ZS4/1 Ignition switch
Vigot jack (late 54)
- John Brooks
- 356 Fan
- Posts: 2169
- Joined: Tue Jul 08, 2008 11:50 am
- Location: Whidbey Island WA.
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Re: Let there be light!(or my review of Fellman LED/SMD lamp
Great comparison, what is the bulb base type on the LED reflector? http://users.chariot.net.au/~acpearson/page2.html
John Brooks
62 Roadster
66 912
84 Cab
getting pushed around in porsches since 1965
62 Roadster
66 912
84 Cab
getting pushed around in porsches since 1965
- Harold Singh
- 356 Fan
- Posts: 483
- Joined: Sat Sep 27, 2014 10:43 am
- Tag: Cooling with air
- Location: Richmond, VA
Re: Let there be light!(or my review of Fellman LED/SMD lamp
John I did not deconstruct these but, I understood these were custom built units, including the bulbs in 6volt with the SMD LED emitters.John Brooks wrote:Great comparison, what is the bulb base type on the LED reflector? http://users.chariot.net.au/~acpearson/page2.html
Thanks Alex. It deserved a better comparison and review! You could not tell these from stock appearance with the lamps turned off at a glance. Someone would really need to look closely and have seen both to possibly tell these lamps from stock behind the glass lens.Alex Parmenter wrote:Excellent write up!! Great seeing the side by side comparison!! Many thanks for posting
Harold
In the garage:
1964 356C Irish Green
1995 993 GP White
In the garage:
1964 356C Irish Green
1995 993 GP White
- John Brooks
- 356 Fan
- Posts: 2169
- Joined: Tue Jul 08, 2008 11:50 am
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Re: Let there be light!(or my review of Fellman LED/SMD lamp
Harold
Sorry
I thought these LEDs were bulb inserts (H series), not sealed beam type. Actually it makes better sense with the reflector. I was hoping for the older European headlight bases and driving light replacements also.
Thanks, great comparison.
Sorry
I thought these LEDs were bulb inserts (H series), not sealed beam type. Actually it makes better sense with the reflector. I was hoping for the older European headlight bases and driving light replacements also.
Thanks, great comparison.
John Brooks
62 Roadster
66 912
84 Cab
getting pushed around in porsches since 1965
62 Roadster
66 912
84 Cab
getting pushed around in porsches since 1965
-
- 356 Fan
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- Joined: Tue Mar 25, 2008 9:28 pm
Re: Let there be light!(or my review of Fellman LED/SMD lamp
The conversion unit is clearly marked H4. In Jeffery's photo of the LED unit it is hard to confirm that the base is H4 but I assume it is the case.
- John Brooks
- 356 Fan
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Re: Let there be light!(or my review of Fellman LED/SMD lamp
Brad
Found an old link, you can adapt them for old EU bulbs. You can see the future. I have users a similar Single CREE LED's in the lab at 3v & 0.75a,for testing. Jeffery is on the right tract, has a good product.
viewtopic.php?f=1&t=39010&p=239883#p239883
Found an old link, you can adapt them for old EU bulbs. You can see the future. I have users a similar Single CREE LED's in the lab at 3v & 0.75a,for testing. Jeffery is on the right tract, has a good product.
viewtopic.php?f=1&t=39010&p=239883#p239883
John Brooks
62 Roadster
66 912
84 Cab
getting pushed around in porsches since 1965
62 Roadster
66 912
84 Cab
getting pushed around in porsches since 1965
-
- 356 Fan
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- Joined: Tue Mar 25, 2008 9:28 pm
Re: Let there be light!(or my review of Fellman LED/SMD lamp
From my experience there is always a confusion about headlight bulb design. See illustration below.
The so-called H-4 (with the three tabs radiating out) is technically known as P43t. The bulb with the stepped base is known as P45t.
As you can see, the H-4 or P43t bulb has a tube on top. The P45t bulb has a stepped base; it's usually an incandescent type with round globe but can be supplied with the H-4 type tube in soldered into the base.
The H-4 quartz design came out in the late 60's. The P45t goes back into the 50's. (and before that, the BA20d, but that's another story)
In the link John gave, it appears Jeffery is using the P45t base into an old conversion unit. All modern-day conversion units take a H-4- P43t base. Jeffery's current ads show conversion units and H-4 bulb bases.
Note, Jeffery is selling a complete "sealed beam" type bucket with a conversion unit installed plus the LED bulb in the back, times two for $279/pair
The so-called H-4 (with the three tabs radiating out) is technically known as P43t. The bulb with the stepped base is known as P45t.
As you can see, the H-4 or P43t bulb has a tube on top. The P45t bulb has a stepped base; it's usually an incandescent type with round globe but can be supplied with the H-4 type tube in soldered into the base.
The H-4 quartz design came out in the late 60's. The P45t goes back into the 50's. (and before that, the BA20d, but that's another story)
In the link John gave, it appears Jeffery is using the P45t base into an old conversion unit. All modern-day conversion units take a H-4- P43t base. Jeffery's current ads show conversion units and H-4 bulb bases.
Note, Jeffery is selling a complete "sealed beam" type bucket with a conversion unit installed plus the LED bulb in the back, times two for $279/pair
- John Brooks
- 356 Fan
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Re: Let there be light!(or my review of Fellman LED/SMD lamp
Brad
Thanks, I wish I had your technical research data base, reference library, and memory.
Thanks, I wish I had your technical research data base, reference library, and memory.
John Brooks
62 Roadster
66 912
84 Cab
getting pushed around in porsches since 1965
62 Roadster
66 912
84 Cab
getting pushed around in porsches since 1965
- Bob Slayden
- 356 Fan
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Re: Let there be light (Review of Fellman SMD/LED lamps)
I installed Jeffrey's LED lights in my roadster this past weekend. Wow, what a difference. I will be giving longer life to my generator too. Thanks to Jeffrey.
The pictures tell the tale.
Bob Slayden
The pictures tell the tale.
Bob Slayden
- John Brooks
- 356 Fan
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Re: Let there be light (Review of Fellman SMD/LED lamps)
Dave
Is your roadster Slate gray? I think I have a twin right down to the driving lights.
Is your roadster Slate gray? I think I have a twin right down to the driving lights.
John Brooks
62 Roadster
66 912
84 Cab
getting pushed around in porsches since 1965
62 Roadster
66 912
84 Cab
getting pushed around in porsches since 1965
- Steve Raucher
- 356 Fan
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- Joined: Sat Jan 09, 2010 9:58 am
- Location: Seaside CA 93955
Re: Let there be light (Review of Fellman SMD/LED lamps)
Thinking of changing over to these headlights,gauge bulbs and tail lights.
Can anyone comment if they have had problems with their 6 volt systems like fuses blown etc?
Happy Turkey daze!
Steve
Can anyone comment if they have had problems with their 6 volt systems like fuses blown etc?
Happy Turkey daze!
Steve
- David Jones
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Re: Let there be light (Review of Fellman SMD/LED lamps)
Steve you are not going to blow any fuses if you just change bulbs. These things only take about 20% of the current used by standard tungsten bulbs.
If I had known I would live this long I would have pushed the envelope a little harder.
Cymru am byth
David Jones #9715
Cymru am byth
David Jones #9715
- Harold Singh
- 356 Fan
- Posts: 483
- Joined: Sat Sep 27, 2014 10:43 am
- Tag: Cooling with air
- Location: Richmond, VA
Re: Let there be light (Review of Fellman SMD/LED lamps)
No problems at all Steve and boy are they bright! As mentioned in my write up, I would check your connections since LED is sensitive to poor connections. If everything is in good shape you're good. You are going to love these for driving and I know that no one notices when they are off. Best of both worlds. I don't get a penny for advertising but, just wanted to share that they work.
On my 993 forum, another guy (Tore Bergvill) makes HID and LED upgrades and I was equally impressed with these as I was with the HID lamps.
On my 993 forum, another guy (Tore Bergvill) makes HID and LED upgrades and I was equally impressed with these as I was with the HID lamps.
Harold
In the garage:
1964 356C Irish Green
1995 993 GP White
In the garage:
1964 356C Irish Green
1995 993 GP White
- George Barnes
- 356 Fan
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- Joined: Fri Dec 26, 2008 10:34 pm
Re: Let there be light (Review of Fellman SMD/LED lamps)
Harold
Would you please post a link to the 993 forum
Thanks
George Barnes
Would you please post a link to the 993 forum
Thanks
George Barnes
George D. Barnes
'64 356SC
'64 356SC