Aux. LED lights.


Information and questions on GL1200 Goldwings (1984-1987)
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tblank
Posts: 16
Joined: Sun Apr 07, 2013 11:25 pm
Location: Ventura Ca.
Motorcycle: 1985 GL 1200 Interstate

Aux. LED lights.

Postby tblank » Tue Oct 21, 2014 2:04 pm



I hope I'm not re-hashing something already covered. I searched the archives and found some good info but to be specific: I'm running a set of Cree XM-L-LED's that draw 530 ma. and use 6.4 watts.
The bike is a 1985 1200 Interstate and I want to add two more lights for foggy conditions. The LED's I want to add are; 2 inch, 900 lumen, LED. They draw 680 ma. and consume 9.2 watts. Will I need to address the alternator system to keep up? These are both low draw lights, and I think the alternator is stock. No upgrades. Is this doable without further issues?
I read many posts on LED's and got some good info from a member called Dusty Boots however, they weren't the same as my post or questions here. Anybody have an idea on this?
Any help would be greatly appreciated.
I love this site. Thank heavens for it.



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virgilmobile
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Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Aux. LED lights.

Postby virgilmobile » Tue Oct 21, 2014 2:24 pm

As far as I remember,the 1200 has a excess of power somewhere near 100 watts.
This is a stock bike,low beam and at 3500 rpm.
Let the bike settle around 950 rpm and the extra avaiable drops to maybe 20-30 watts.
I suspect that "by the numbers" it would be close to discharging the battery when at a idle with all of them on.
This usually isn't a issue when I ride.I seldom just let it idle too long.
Some discharge is fine,the system just puts it back when you get the rpm up again.
Drive in town,lots of stop and go with all of them on and expect problems after a hour or so.
I do recommend putting on a voltmeter,a nice digital one you can glance at.The mechanical one seems a bit slow to show the volts.
I do know that the bike will not keep up with 2@ 55watt halogens at 3000rpm.
I tried it.Watched the volts steady drop.tenths by tenths.The mechanical meter still showed about the same..somewhere above 12 volts.

tblank
Posts: 16
Joined: Sun Apr 07, 2013 11:25 pm
Location: Ventura Ca.
Motorcycle: 1985 GL 1200 Interstate

Re: Aux. LED lights.

Postby tblank » Tue Oct 21, 2014 2:33 pm

Thanks Heaps Virgilmobile for the quick response. I would like to run all four lights all the time so I can be seen in the daylight easily. I could install a voltmeter but that doesn't seem to provide any more juice (if any is needed). If there is a supply of 70 to 100 watts originally then would an additional 16 watts really have that much of a draw? Your advice is a great help. Thank you.

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virgilmobile
Posts: 7663
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Aux. LED lights.

Postby virgilmobile » Tue Oct 21, 2014 3:02 pm

There is plenty of power avaiable to operate the lights is there when the engine is above 3k rpm.
It's when the bike Is idling that you might see a bit more discharge than normal.
The reason for the digital meter is just to keep a eye on the volts.
I assume the current draw you mention is per lamp...for a total of near 32 watts for all 4.
If the charging system is perfect,that about all that's avaiable at a idle.
At 3500 rpm there can be as much as 100 watts avaiable.

tblank
Posts: 16
Joined: Sun Apr 07, 2013 11:25 pm
Location: Ventura Ca.
Motorcycle: 1985 GL 1200 Interstate

Re: Aux. LED lights.

Postby tblank » Tue Oct 21, 2014 4:16 pm

Thank you kind sir for all your helpful advice. And yes, Virgilmobile, I was only counting half of the draw. Not all four. Good catch. Thanks again.

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SilverDave
Posts: 367
Joined: Sun Aug 09, 2009 9:39 am
Location: Langley, BC
Motorcycle: 1985 GL1200 GoldWing Aspy

Re: Aux. LED lights.

Postby SilverDave » Tue Oct 21, 2014 7:46 pm

I run two 35 watt driving lights ( Walmart special) on my 1200... and as long as I am " cruising " ... no problem !!

If I am puttering trough a small town , or in a GWRRA night parade .. they do discharge ...
but as soon as its above 2500 rpm , it starts coming back .

Your two LED's should not be a problem ..

... and I echo VM's suggestion about an easily readable voltmeter ... you want to just quickly glance and know where you are, voltage-wise ...

My 1200 Aspy has all digital gauges, so I bought a model that is just a column of " Idiot" lights : red, orange , green , yellw .. so its easy to read ..
Be sure to add any voltmeter that you do get as close as you can to << directly to the battery >>

I wired mine directly to the battery , but used an available relay to shut it off, when the key is off.....

SilverDave

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WingAdmin
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Motorcycle: 2000 GL1500 SE
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Re: Aux. LED lights.

Postby WingAdmin » Wed Oct 22, 2014 10:25 am

SilverDave wrote:I run two 35 watt driving lights ( Walmart special) on my 1200... and as long as I am " cruising " ... no problem !!

If I am puttering trough a small town , or in a GWRRA night parade .. they do discharge ...
but as soon as its above 2500 rpm , it starts coming back .

I wired mine directly to the battery , but used an available relay to shut it off, when the key is off.....


I did the same on my 1100, and experienced identical results - no problem at speed, but at idle, discharge would occur. I wired mine (through a relay) to the neutral switch, so when the bike was in neutral, the lights would turn off. That way, the lights were not drawing down the battery when the bike was warming up, or when sitting in traffic.

tblank
Posts: 16
Joined: Sun Apr 07, 2013 11:25 pm
Location: Ventura Ca.
Motorcycle: 1985 GL 1200 Interstate

Re: Aux. LED lights.

Postby tblank » Wed Oct 22, 2014 10:43 am

Silver Dave, thanks so much for the info. I will take all that into account.
WingAdmin, wiring to the neutral swtich is genius. Great idea!
Now I just have to find the neutral switch and see what a task that will be.

Love this site!!! All of your guys' help is invaluable. Thanks again.

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oldishwinger
Posts: 171
Joined: Sun Jul 14, 2013 11:26 pm
Location: New Zealand
Motorcycle: 1986 GL1200 Aspencade

Re: Aux. LED lights.

Postby oldishwinger » Wed Oct 22, 2014 4:46 pm

as per all the great answers, the 1200 seems to able to handle 2 35 watt bulbs, with no problems at all, if I may also suggest put the lights through a relay attached directly to the battery, and through an additional on off switch on the handlebars, This will give you option to turn them off if needed, and the relay will help take reduce addtional weight put on power requirements.

One thing to watch for with the cree lights, they can cause interference, on radio and cbs, they are a great light, but I reluctantly had to take them off my aspy because of this.

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WingAdmin
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Re: Aux. LED lights.

Postby WingAdmin » Wed Oct 22, 2014 6:56 pm

oldishwinger wrote:One thing to watch for with the cree lights, they can cause interference, on radio and cbs, they are a great light, but I reluctantly had to take them off my aspy because of this.


That depends entirely on the driver circuitry used to drive them. Some can exhibit this, others will be fine.

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oldishwinger
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Re: Aux. LED lights.

Postby oldishwinger » Wed Oct 22, 2014 8:00 pm

WingAdmin wrote:
oldishwinger wrote:One thing to watch for with the cree lights, they can cause interference, on radio and cbs, they are a great light, but I reluctantly had to take them off my aspy because of this.


That depends entirely on the driver circuitry used to drive them. Some can exhibit this, others will be fine.


Totally agree, strip leds are fine, its seems to be when the lights are bunched, or an exciter is used, and manufacturer doesn't put in the proper blocks,that the problem starts.

unfortunately, it seems legislation pretty much world wide may be required to get the manufactures to create the uniformity in circuits to stop the problem completely. Apparently the led are very competitive in pricing, hence the reluctance in by some makers to get it right.

tblank
Posts: 16
Joined: Sun Apr 07, 2013 11:25 pm
Location: Ventura Ca.
Motorcycle: 1985 GL 1200 Interstate

Re: Aux. LED lights.

Postby tblank » Wed Oct 22, 2014 8:35 pm

Oldishwinger, You may have touched upon something there. I already have the 2 inch 10 watt lights from Superbrightleds that I saw on this site. They work great and I love them especially on overcast days. They pop out. My last ride with a buddy on an '08 1800 Wing said the transmissions had a bit of static. Couldn't tell if it was him or me. Will have to look into. Thanks Heaps for the response.

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oldishwinger
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Motorcycle: 1986 GL1200 Aspencade

Re: Aux. LED lights.

Postby oldishwinger » Wed Oct 22, 2014 8:58 pm

tblank wrote:Oldishwinger, You may have touched upon something there. I already have the 2 inch 10 watt lights from Superbrightleds that I saw on this site. They work great and I love them especially on overcast days. They pop out. My last ride with a buddy on an '08 1800 Wing said the transmissions had a bit of static. Couldn't tell if it was him or me. Will have to look into. Thanks Heaps for the response.


glad to be of help, yes its more than likely its the leds are causing the static, the only way is to take them off, and see if the problem persists. unfortunately there is no work around it, believe me I've tried! I've done quite a bit of research trying to find a solution, without success.

the culprit would appear to be the exciter used, its emits a frequency close to radio and cb bands, hence the static. its only short range, but of course on the bike, everything is close together.




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