Headlight Upgrade

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Scrap
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Headlight Upgrade

#1

Post by Scrap »

RE: 57 FL OEM Guide Headlight 67701-48
I'm converting to 12 volts with a CE low output generator. What are the options I have available to replace the 6 volt sealed beam?
Thanks,
Sam



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Re: Headlight Upgrade

#2

Post by awander »

12V sealed beam

12V H-4 Halogen

LED

How much current can the "low-output" setup supply?

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Re: Headlight Upgrade

#3

Post by Scrap »

[quote=awander post_id=137247 time=1593129359 user

How much current can the "low-output" setup supply?
[/quote]
Output ? Good question. It's designed to work with a 5.5 Amp battery. I'll get the answer. Thanks

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Re: Headlight Upgrade

#4

Post by awander »

A couple of things, Sam:

-It's not a "5.5 Amp Battery", it's a "5.5 Amp-Hour Battery". That is a measure of how much "juice" it contains, basically, and means that it is rated to supply 0,55 Amps for 10 hours before the voltage drops to an unusable level.

-Most motorcycle batteries are rated for a 2 Amp or so maximum charging rate.

-I believe that the "low-output" generator/regulator setup limits the Voltage output of the Generator to a level that will not pump too much current into the battery. It should still be capable of supplying about 10A max at 12V.

The Cycle Electric info is not as complete as I would like, but the 12V generator should be capable of 10A.

That means you would have about 12 Volts times 10 Amps = 120 Watts available to run the ignition, and light the lights.

A regular 12V 55/60W sealed beam or Halogen H4 headlight will use about half of that.

I can't find my notes on measurements that I made years ago, but I "think" that the ignition pulls somewhere around 30-40 Watts.

EDIT: See this older post for more info:

viewtopic.php?f=5&t=16418&p=112807&hili ... aw#p112807

Scrap
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Re: Headlight Upgrade

#5

Post by Scrap »

Andy that's great information. Do most sealed beams or bulbs fit my existing bucket? Maybe some slight modification? Outside of current draw, is there any significant difference between an LED' and a Halogen?
Thanks,
Sam

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Re: Headlight Upgrade

#6

Post by RooDog »

Sam....
My thoughts: An LED headlamp will probably throw out more light than you need, great for dark country roads that have no illumination, but in urban riding so much lighting is useless. Also, most LED HLs would be out of character for our older Harleys. Personally, I am content with a standard H4 system. The bulb is small enough that you can keep a spare handy, and if a rock, debris, or a collision should break the lens, the bulb can still function. The H4 bulbs are available in several differing wattages, but I find the standard 55/60 to be acceptable. Oh, and let's not forget to consider the cost of a headlamp, LED and HID lighting can be very hard on the hip pocket....
Enjoy the ride....RooDog....

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Re: Headlight Upgrade

#7

Post by Frankenstein »

I have the utmost respect for Roo and Awander, but on headlights, these old eyes need all they can get. I'm using a aftermarket 6 1/2" bucket about the size of the springer light. I used to run the 60/100W H4 halogen. Worked good, in town, 60W, on the road 100W of Deer spotting light. My 32E 12V conversion managed just fine.
Then, Tried HID. Brighter for sure, LESS power, but not pleasant to my eyes, color temperature (that Kelvin rating?)wrong.
Then #1 gearhead Son got me a H4 LED conversion. Color temperature Good, vision excellent, Power consumption, haven't measured, but system keeps up fine. I'm sure it's 60W or under. PLUS, bulb doesn't dim at idle. And, It appears VERY BRIGHT to oncoming traffic. At least that what my Buddy says after meeting me coming down the road.
And for me, anything that helps me be seen by all those idiots trying to run us down is a good thing. (New York is a daytime headlight state).
True, it may be out of character, but, I've got lots of character to spare! (you may have already noticed) :D

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Re: Headlight Upgrade

#8

Post by RooDog »

This H4 to LED conversion, can you name the brand, and source? I ask because I have been burned by eBay bogus LED replacement bulbs for both front and rear lighting....

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Re: Headlight Upgrade

#9

Post by George Greer »

Herr Dr. Frankenstein,

Does your conversion have the cooling fan built into it?

I have one on my bike similarly set-up as you have.

If I can find the box that it came in I will post a photo of it.

Works just fine, BTW, I am running all LED lighting on my bike.

George

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Re: Headlight Upgrade

#10

Post by Frankenstein »

Roo, Don't remember offhand the make/model. I had it out a couple of weeks ago, 'cause it was flickering. Noticed then it does have a built in fan. Flicker was my faulty wiring :( (H'mm, how did I used to make a living?). Shoemaker's kids, etc.
I'll pop it out and get the info on the bulb sometime this weekend.
DD

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Re: Headlight Upgrade

#11

Post by RooDog »

Thanks, DD...
I would consider something special for the Bates 5 3/4 style HL on my '68 Cafe Bagger....
I'm using a dual bulb, late Harley , accessory light on the Big Red Evo with the 1960 Nacel.... With H11 & H9 bulbs, not a bad lamp. Lo beam is on full time, and only the projector Hi beam is switched.... Bought a pair of these lamps to try on my 1951 FORD Panel Truck project....
....RooDog...

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Re: Headlight Upgrade

#12

Post by George Greer »

I found the box that my headlight bulb came in, and the left-over adapters.

Here is the photo of the box that it all came in.

George
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Re: Headlight Upgrade

#13

Post by RooDog »

Thank You, George.
I'll do some follow up research on that item.....

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Re: Headlight Upgrade

#14

Post by Scrap »

Thanks Hiram

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Re: Headlight Upgrade

#15

Post by George Greer »

Scrap wrote:
Sat Jun 27, 2020 6:02 pm
Thanks Hiram
So mote it be.

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