Home » Public Forums » GMCnet » [GMCnet] HF LED Tail Light Mod
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| Re: [GMCnet] HF LED Tail Light Mod [message #227303 is a reply to message #227292] |
Sun, 27 October 2013 23:23   |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
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| Ken Burton wrote on Sun, 27 October 2013 20:02 |
I like it.
Now I need an LED one to light up the back up lights.
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It LOOKS like the HF kit uses white LEDs with red lenses. It also LOOKS like the kit has 4 side lights. (One in each tail light housing and two separate ones.)
http://www.harborfreight.com/led-trailer-light-kit-95974.html
As long as these side lights are LED, they shouldn't be a problem to install a couple as back-up lights.... It wouldn't cost any more as they already come with the kit,
To install as described, you need a full kit for each side..... at $35 a side.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: [GMCnet] HF LED Tail Light Mod [message #227314 is a reply to message #227303] |
Mon, 28 October 2013 03:23 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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| Mike Miller wrote on Sun, 27 October 2013 23:23 |
| Ken Burton wrote on Sun, 27 October 2013 20:02 |
I like it.
Now I need an LED one to light up the back up lights.
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It LOOKS like the HF kit uses white LEDs with red lenses. It also LOOKS like the kit has 4 side lights. (One in each tail light housing and two separate ones.)
http://www.harborfreight.com/led-trailer-light-kit-95974.html
As long as these side lights are LED, they shouldn't be a problem to install a couple as back-up lights.... It wouldn't cost any more as they already come with the kit,
To install as described, you need a full kit for each side..... at $35 a side.
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I do not think that is true Mike. I think the only white ones included are the 4 on the left pointing down on the license plate. I believe with LEDs you have to use the same color as the lens it is shining through. If you mix colors of LED and lens, it will not work.
I have played with some 1157 LED replacement bulbs in the past and they were poor at best. I never found any really bright ones.
BTW,
For anyone wanting to buy this HF set, there is a coupon on their web site that expires today (Monday). They are $30.00 with the coupon.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] HF LED Tail Light Mod [message #227320 is a reply to message #227314] |
Mon, 28 October 2013 07:11 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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LEDs are color spectrum specific. The output of a white led has only a small part of its energy in the red spectrum. A red lenses would only allow the portion of red spectrum to be visible. As noted, the clear LEDs are emitting their total power output in the red spectrum. The physical appearance of an LED may not be the actual color of the light output.
This was an excellent job of using easily obtainable hardware in our coaches. Author is to be commended.
For a back-up or reverse light, the LED replacement bulbs are not rated at a high enough output to provide much exterior illumination. Great marker lights, but poor function as a back up aid.
There are plenty of reasonably priced 1 watt, 3 watt, 10 watt and 20 watt White LED assemblies available to convert to back-up lights. You would have to design and build the support electronics to provide correct current limiting and heat sinking for the high output LED builds. The simple resistor method used on low power LEDs is inadequate as a long term solution. Velle-man kit number, K8071RS will work to control the current for 1watt and 3 watt LEDs. Be advised that you should not directly look at high output LEDs without eye protection.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
[Updated on: Mon, 28 October 2013 08:45] Report message to a moderator |
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| Re: [GMCnet] HF LED Tail Light Mod [message #227330 is a reply to message #227320] |
Mon, 28 October 2013 08:40 |
Jp Benson
Messages: 649
Registered: October 2011
Location: Fla
Karma: 2
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LED output spectrum by design is very narrow. Without lenses, the
tail/stop LEDs emit red, side LEDs emit yellow and tag LEDs are white.
All have matching colored lenses. I first installed them under the GM
lens without the HF Fresnel lens. The optical characteristics of the GM
lens were not ideal since it was designed for a single incandescent bulb
located several inches away. After putting the HF lenses back on I got
much better results.
There are no LED sidelights in the tail light housing. Just a red
reflector.
Using 2 kits there are 2 tag light LED bars and 4 side light LED bars.
The sidelight bars will fit nicely in the original factory location with
a small amount of grinding on the SS strip. I still have the factory
side bumper and hopefully can locate some original style side light
lenses as mine are crumbling.
Yes I still need backup lights. Will look at some of the options that
are posted in this thread.
$30 is the lowest sale price I have seen.
JP
On 10/28/2013 8:11 AM, Thomas Phipps wrote:
>
> LEDs are color spectrum specific. The output of a white led has only a small part of its energy in the red spectrum. A red lenses would only allow the portion of red spectrum to be visible. As noted, the clear LEDs are emitting their total power output in the red spectrum. The physical appearance of an LED may not be the actual color of the light output.
> This was an excellent job of using easly obtainable hardware in our coaches. Author is to be commended.
> For a back-up or reverse light, the LED replacement bulbs are not rated at a high enough output to provide much exterior lumination. Great marker lights, but poor function as a back up aid.
> There are plenty of reasonably priced 1 watt, 3 watt, 10 watt and 20 watt White LED assemblies available to convert to back-up lights. You would have to design and build the support eletronics to provide correct current limiting and heat sinking for the high output LED builds. The simple resistor method used on low power LEDs is inadequate as a long term solution. Velle-man kit number, K8071RS will work to control the current for 1watt and 3 watt LEDs. Be advised that you should not directly look high output LEDs without eye protection.
> Tom, MS II
>
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| Re: [GMCnet] HF LED Tail Light Mod [message #227331 is a reply to message #227330] |
Mon, 28 October 2013 08:52 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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All eletronics has 1 watt high output white LEDs for $3.50. You would still have to design/build the supporting electronic package for 1 watt LEDs.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] HF LED Tail Light Mod [message #227371 is a reply to message #227303] |
Mon, 28 October 2013 12:49 |
Jim Bounds
Messages: 842
Registered: January 2004
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Go to NAPA, look at a 4x6" wafer light assembly for a trailer (tractor-trailer rig). The wafer will fit (almost perfectly. If you saw the tail lights on the coach I had at Dothan it had them. I did 4" round LED wafers in the Duramax coaches. They were 51 segment LED wafers, looked OK but the 4x6" wafers looked better.
JIm Bounds
---------------------
________________________________
From: Mike Miller <m000035@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Monday, October 28, 2013 12:23 AM
Subject: Re: [GMCnet] HF LED Tail Light Mod
Ken Burton wrote on Sun, 27 October 2013 20:02
> Jp Benson wrote on Sun, 27 October 2013 21:18
> > http://www.gmcmhphotos.com/photos/g6467-exterior-lights.html
>
>
> I like it.
>
> Now I need an LED one to light up the back up lights.
It LOOKS like the HF kit uses white LEDs with red lenses. It also LOOKS like the kit has 4 side lights. (One in each tail light housing and two separate ones.)
http://www.harborfreight.com/led-trailer-light-kit-95974.html
As long as these side lights are LED, they shouldn't be a problem to install a couple as back-up lights.... It wouldn't cost any more as they already come with the kit,
To install as described, you need a full kit for each side..... at $35 a side.
--
Mike Miller -- Hillsboro, OR -- on the Black list
(#1)'73 26' exPainted D. -- (#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
http://m000035.blogspot.com/
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| Re: [GMCnet] HF LED Tail Light Mod [message #227397 is a reply to message #227390] |
Mon, 28 October 2013 15:08 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Change to a heavy duty flasher and it will work just fine. However, the front amber lights and the side marker lights are wired in series with each other then to ground. This will not work with LEDs. Each LED needs to be on its own circuit. In addition, this may not provide enough load for even the heavy duty flashers to work properly.
Get Ken's son large wiring diagram and study the circuit.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] HF LED Tail Light Mod [message #227463 is a reply to message #227371] |
Mon, 28 October 2013 20:03 |
Jp Benson
Messages: 649
Registered: October 2011
Location: Fla
Karma: 2
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That's a nice alternative Jim. What did you use for the front?
JP
On 10/28/2013 1:49 PM, Jim Bounds wrote:
> Go to NAPA, look at a 4x6" wafer light assembly for a trailer (tractor-trailer rig). The wafer will fit (almost perfectly. If you saw the tail lights on the coach I had at Dothan it had them. I did 4" round LED wafers in the Duramax coaches. They were 51 segment LED wafers, looked OK but the 4x6" wafers looked better.
>
> JIm Bounds
> ---------------------
>
>
> ________________________________
> From: Mike Miller <m000035@gmail.com>
> To: gmclist@temp.gmcnet.org
> Sent: Monday, October 28, 2013 12:23 AM
> Subject: Re: [GMCnet] HF LED Tail Light Mod
>
>
>
>
> Ken Burton wrote on Sun, 27 October 2013 20:02
>> Jp Benson wrote on Sun, 27 October 2013 21:18
>>> http://www.gmcmhphotos.com/photos/g6467-exterior-lights.html
>>
>> I like it.
>>
>> Now I need an LED one to light up the back up lights.
>
> It LOOKS like the HF kit uses white LEDs with red lenses. It also LOOKS like the kit has 4 side lights. (One in each tail light housing and two separate ones.)
>
> http://www.harborfreight.com/led-trailer-light-kit-95974.html
>
> As long as these side lights are LED, they shouldn't be a problem to install a couple as back-up lights.... It wouldn't cost any more as they already come with the kit,
>
> To install as described, you need a full kit for each side..... at $35 a side.
>
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| Re: [GMCnet] HF LED Tail Light Mod [message #227533 is a reply to message #227463] |
Tue, 29 October 2013 06:14 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Technical note:
White LEDs, which are blue-emitting LEDs coated with a phosphor that glows yellow and red when stimulated by blue from the LED. The merging of the blue, yellow, and red provides white light.
MAKE magazine, issue 36, page 137
Highly recommend MAKE. Magazine for you techno-nuts. I have every issue. Going bi-monthly next year. Sponsors of the Maker Faire over the country.
Try it, you will like it.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
[Updated on: Tue, 29 October 2013 08:06] Report message to a moderator |
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| Re: [GMCnet] HF LED Tail Light Mod [message #227563 is a reply to message #227463] |
Tue, 29 October 2013 10:17 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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I could not find them on the NapaOnline site, what is the part number?
JR Wright
78 Buskirk Stretch
75 Avion
Michigan
On Oct 28, 2013, at 9:03 PM, Jp Benson <chocomo99@yahoo.com> wrote:
> That's a nice alternative Jim. What did you use for the front?
>
> JP
>
>
> On 10/28/2013 1:49 PM, Jim Bounds wrote:
>> Go to NAPA, look at a 4x6" wafer light assembly for a trailer (tractor-trailer rig). The wafer will fit (almost perfectly. If you saw the tail lights on the coach I had at Dothan it had them. I did 4" round LED wafers in the Duramax coaches. They were 51 segment LED wafers, looked OK but the 4x6" wafers looked better.
>>
>> JIm Bounds
>> ---------------------
>>
>>
>> ________________________________
>> From: Mike Miller <m000035@gmail.com>
>> To: gmclist@temp.gmcnet.org
>> Sent: Monday, October 28, 2013 12:23 AM
>> Subject: Re: [GMCnet] HF LED Tail Light Mod
>>
>>
>>
>>
>> Ken Burton wrote on Sun, 27 October 2013 20:02
>>> Jp Benson wrote on Sun, 27 October 2013 21:18
>>>> http://www.gmcmhphotos.com/photos/g6467-exterior-lights.html
>>>
>>> I like it.
>>>
>>> Now I need an LED one to light up the back up lights.
>>
>> It LOOKS like the HF kit uses white LEDs with red lenses. It also LOOKS like the kit has 4 side lights. (One in each tail light housing and two separate ones.)
>>
>> http://www.harborfreight.com/led-trailer-light-kit-95974.html
>>
>> As long as these side lights are LED, they shouldn't be a problem to install a couple as back-up lights.... It wouldn't cost any more as they already come with the kit,
>>
>> To install as described, you need a full kit for each side..... at $35 a side.
>>
>
> _______________________________________________
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] HF LED Tail Light Mod [message #227564 is a reply to message #227541] |
Tue, 29 October 2013 10:26 |
powerjon
Messages: 2446
Registered: January 2004
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Autozone sells 3 different electronic flasher relays. You can look them up by part number on the website and I have listed them from low to high in cost and of the first 2 the second has a loud flasher noise. The part numbers are FL32, LF12 & EP50. There are more expensive units out there, but these will work just fine.
<http://www.autozone.com/autozone/accessories/Novita-2-pin-12-Volt-1-to-20-x-25-Watt-heavy-duty-electronic-flasher/_/N-26fp?itemIdentifier=193118_0_0_>
or
http://goo.gl/SnpLr4
JR Wright
78 Buskirk Stretch
75 Avion
Michigan
On Oct 29, 2013, at 8:37 AM, Michael <lilmyk@gmail.com> wrote:
>
>
> A solid state electronic flasher relay will work properly with one LED. I know this for a fact. Some are inexpensive, some are ridiculously expensive. Trucklite sells them, Bussman sells them for SurePower. They don't usually make a sound, so if you want to hear the turn signal beep, you either have to specify one with sound or add a buzzer. In two weeks all Mack trucks being built will come standard with one.
>
>
> --
> 1973 GMC 26' Glacier - Unknown Mileage - Has a new switch pitch transmission with Powerdrive :)
> _______________________________________________
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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