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› Running a twin headlight setup?
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Running a twin headlight setup? (Read 13 times)
Banger
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Carpe Zookem
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Running a twin headlight setup?
05/03/06 at 05:32:57
Okay, I have been thinking about getting a twin headlight assembly and mounting it to the Zook.
Is this likely to cause any problems with the charging system? I know the stator will only support so much voltage. If I'm running two regular lights, can I have both burning at, say, 35w for low beams and both at 55w for high beams without it drawing too much current and in effect draining my battery? That's pretty bright light for a motorcycle, granted, but most cars are putting out that much light so it shouldn't really annoy drivers meeting me on the highway.
The alternate idea is to run one light for low beam, two for high-- Euro-style.
Thoughts?
Regards,
Banger
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Banger
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Carpe Zookem
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Re: Running a twin headlight setup?
Reply #1 -
05/03/06 at 05:36:30
By the way, I was thinking of the "Dominator Twin Motorcycle Headlights" listed at this page:
http://www.toolparts.co.uk/acatalog/Front_Lights.html
I got my twin rear lights from these people. Although somewhat expensive ($55 for those lights,) they look just like I wanted.
Regards,
Banger
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thumperclone
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Re: Running a twin headlight setup?
Reply #2 -
05/03/06 at 07:54:55
i changed my head light bulb to one of those super brite,same wattage lot whiter light ,added 2 small 20 watt hallogen marker lights..low beam draw =95watts
no problems..
note:i installed a switch in the lower section of the left cover off a fused lead from the battery thru a relay stuck under the seat and wired the coil of the relay to the low beam (white i think)lead of the head lamp...
this ensures lights kick off during starting(no light sw on my 06) and no aux lights on with high beam(keeps jonny law happy)...
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Jim_R
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Re: Running a twin headlight setup?
Reply #3 -
05/03/06 at 08:05:05
Hmm I always thought 55w bulb would melt the wiring for the headlight. I cant imagine how hjot it could get if u had 2 highbeams with that much power on it. U might have to wire them with a fuse and heavier gauge wire.
good luck
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mpescatori
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Re: Running a twin headlight setup?
Reply #4 -
05/03/06 at 09:26:24
How about two 35W low beam, and one single 60W high beam? If the quality of the light assembly is good, you will rarely need TWO high beams.
Also, how about a triple light setup, as in,
oOo
or better still
range;">
o
o
O
o
range;">
o
where the sidelights are35W and the center one is 60W.
If you do your wiring properly, you can actually have the 35x2=70W switch off as you switch on the 60W high beam,
OR
stay on when you flash.
8)
Maurizio
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Maurizio Pescatori, Esq.
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thumperclone
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Re: Running a twin headlight setup?
Reply #5 -
05/03/06 at 14:30:24
Jim_R wrote
on 12/31/69 at 16:00:05:
Hmm I always thought 55w bulb would melt the wiring for the headlight. I cant imagine how hjot it could get if u had 2 highbeams with that much power on it. U might have to wire them with a fuse and heavier gauge wire.
good luck
ohms law tells us P(watts)=I(amps)xE(volts)....
so 55watts /12 volts=4.583 amps your wire would have to be smaller than 18 gauge and fused over 5 amps to melt the wire...UNLESS !! the wiring(size not issue thermal rating is) was laying across the top the lamp and temp exceeded 60c....
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Jim_R
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Re: Running a twin headlight setup?
Reply #6 -
05/03/06 at 19:23:11
hmm so 2 55watt high beams would be 9 amps. Ouch
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thumperclone
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Re: Running a twin headlight setup?
Reply #7 -
05/03/06 at 19:40:07
yes 2x 55/12=9.16amps...
#12 or 14 automotive wire fused at 10 or 15amps..
my s40 has 2 20 amp fuses id guess one is for starter
and other for lighting(havent seen a wiring diagram)
if i remember battery rating it should run 2 55 watt builbs for about an hour with the engine off ..(dont do this to a battery you care about)..
thought i saw a post somewhere on how to use a volt meter to calculate the charging circuit out put...
anything over 20 watts or so id would shurly run a seperate fused circuit..think scootworks has a cromed housed bar mounted switch and relays available..
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Banger
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Carpe Zookem
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Re: Running a twin headlight setup?
Reply #8 -
05/04/06 at 04:23:59
The lights I'm looking at (see link in above post) are 55w lights. This is why I ask about the high wattage figure.
I'm very bad with electrical stuff and understanding it all, so your patience and explanations are appreciated.
Didn't I see someone here running a bright yellow Savage with twin lights on the front? I think they were big round lights, too. Like the 5" regular m/c lights...anyone?
Regards,
Banger
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Banger
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Carpe Zookem
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Re: Running a twin headlight setup?
Reply #9 -
05/04/06 at 04:25:54
It would make sense to run one for dim and two for bright, in that case, no?
Regards,
Banger
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thehoghunter
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Chop Suey
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Re: Running a twin headlight setup?
Reply #10 -
05/04/06 at 06:58:44
Banger,
That yellow twin light savage was mine. Those 'Dominator' lights look just like the kind I got from Custom Chrome (I loved the look of them) but they SUCKED so much juice together it was killing my battery.
I also want to mention that just one of those lights would not light up enough to be worth it - could have been me - I'm not that great with electrical side of things but I believe it to be the quality of the lights.
I since went with two 35w lights on at the same time (when my bike was running) and although I didn't care for the look as much, looking 'good' versus seeing and being seen, you know which will win out.
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SeattleSavage
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Re: Running a twin headlight setup?
Reply #11 -
05/04/06 at 20:46:58
I have two 35W passing lamps and the stock bulb in the middle 55w/65w ? They certainly have the brightness, but I haven't run it long enough to check battery drain. I did 8 hours of driving and it was still starting fine so it is working at least some. I'm in the process of doing the head. (another story) Once that's done I will find out.
If any one finds out the amp output of the thumper I'd
really
like to know. I will have it tested if noone else does.
Sunny in Seattle
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mpescatori
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Re: Running a twin headlight setup?
Reply #12 -
05/05/06 at 08:06:24
I agree. 35W lights are very good daytime driving lights, but they're nowhere near a single 55W light (single) when it comes to night driving.
That's why I suggested the 35W twin setup, and the bigger headlight in the middle.
With the right kind of switch/relay, you can actually have the three positions for daytime, night low, night high beam. And leave the itty bitty parking light for... parking.
Maurizio
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Maurizio Pescatori, Esq.
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Mikuni BST40, K&N filter, Stage2 cam, Verslagen tensioner, Sportster muff, 120 proof moonshine, Pirelli MT 66 tourers... and a chain conversion too !
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