6v lights fed from white line? Headlamps, Turn-signals, brakelights?

Discussion in 'Electrical' started by rebelspirit, Apr 23, 2008.

  1. rebelspirit

    rebelspirit New Member

    This is a new thread specifically about powering lights with the 6volt white wire lead only. Read a lot of Light posts that ran the gamut, so trying to filter it down to one specific topic: powering all lights with the 6volt white wire lead only. I would like adding in a battery only when neccessary and rechargeable by the white wire, using only or mainly pre-fab parts, where to get prefab parts and creative solutions. Any advice that involves building your own circuit board does not belong in this thread-the key words are simple solutions.

    I am already looking at gas powered scooter parts (they seem to have a rechargeable battery system with turn signals, headlight, horn and electric start prefabs) since laws in certain places (NYC) have made it neccessary for the manufacturers to create lighting systems.

    Is a voltage multiplier neccessary to get adequate output for night riding? would it be useful for charging batteries? If so are ther any pre-manufactured models and where do I get them?

    Are there any headlights that have been fabricated specifically for this aplication? If so, where can I purchase them?

    What about tractor lights, motorcycle headlamps or scooter headlamps? Has anyone found a cheap, quick and easy jerry-rigged system? If so, what are the specific components and where do I purchase them?

    What about turn signal options? My go-ped had built in turn signals-surely these low volt prefabs could apply to our motorkits? Go-ped manufactures must have these components available, maybe? Anything else out there designed to run in conjunction with a headlight?

    Last edited: Apr 23, 2008

  2. fetor56

    fetor56 Guest

  3. rebelspirit

    rebelspirit New Member

    Has anyone tried charging a motorcyle battery with the white wire and running lights off that? Can the magneto coil properly charge a 6volt motorcycle battery?
  4. graucho

    graucho Active Member

  5. rebelspirit

    rebelspirit New Member

    F Off

    I am not a "Noob" and I do know how to use a search function, thanks you two.

    If you just want to show how much longer you've been around and how much better at this you are, go pee on some one elses yard 'cause im tryin' to get some work done.
  6. fetor56

    fetor56 Guest

    LOL..."F Off"....your really gonna get far with that attitide,infact i can see people tripping over themselves now all eager to help..............silly boy. :rolleyes:
  7. graucho

    graucho Active Member

    HeeHee, I love your spunk. I guess your member name says it. Reason being there are thousands of post here that duplicate each other. As you will notice the longer your here is that tons of people hate to read and do a little leg work. Im not saying your one of them. So saying that....
    There has been a lot of people trying to get that white wire to do the trick, but it just dosent crank out enough juice from these cheap magnetos. If there is anything that has changed I hope you can find some answers because that person will be a hero. I think the white wire only puts out 1-3v, even though they say 6.
    Last edited: Apr 24, 2008
  8. rebelspirit

    rebelspirit New Member

    More Power Needed

    Thanks gracho,

    That is useful info- I had read that elsewhere, but is this a good guess or did some one use a voltage tester?

    What about switching out the stock magneto for something more useful? Anyone tried that? would a small motorcycle alternator work on these engines in place of the Magneto Coil?

    The New Question is-> Can you get more power off your engine then the stock Coil provides? Voltage multipliers, better coils, alternators might do this. I noticed a lot of people look towards bicycle lighting solutions for their ride-I think we should be looking more closely at Go-peds, mopeds, scooters and small motorcycles for solutions that are self powered.

    I plan on experimenting and reasearching these questions and will report back alll my failures and successes here.
  9. Bikertypeguy

    Bikertypeguy New Member

    I keep reading that you can't run lights off of the white wire. I have a headlight and tail light that run off of the white wire. I have to have the headlight turned off to start the engine, but once it's running the light works very well. I have no battery. I don't want to mess with a battery. But in theory I would think it would charge the AA rechargeables.

    RATRODER Guest

    rebelspirit,Your attitude will take you to places you don't want to go! louis
  11. loquin

    loquin Active Member

    you can pull about 3 WATTS from the white wire. any more than that & your bike won't run. The voltage is more than 6 volts, though. Voltage doubling does NOT increase the total amount of power available, because as the voltage doubles, the current is cut in half. But, since no transformer is perfect, the total power is actually reduced a bit, due to losses.

    Power (in watts) = Current (in amps) times Voltage (in volts)​


    P = IE​
    Last edited: Apr 24, 2008
  12. graucho

    graucho Active Member

    Thanks for explaining that again loquin. Now its finally planted in my head.
  13. rebelspirit

    rebelspirit New Member

    Ratroder, My attitude has taken me many places no man would go but definitely should.

    But this is not a thread on my bad attitude so everyone let's stay focused on the specific thread at hand and stop harassing the "noob" ok.

    Found this-3-5VDC in 100VAC 2000Hz out inverter for
    EL lighting.


    Anyone try this yet?
  14. rebelspirit

    rebelspirit New Member

    Thanks loquin!

    I at least understood part of it. Voltage multipliers do not increase your power-check.
  15. loquin

    loquin Active Member

    Correct. Your inverter is the same - it will output a little less power than it takes in, although at a higher voltage.

    BTW. fetor's first post, above, has a link to the "noobie's" page, which is, IMO, mislabelled. That page has some tips, which if you're an experienced forumer, you could skip. However, it also has a lot of links to commonly asked questions. If you take to the time to scroll down it, there's at least a half dozen links to lighting questions, including white-wire lighting questions.
  16. rebelspirit

    rebelspirit New Member


    Great! Knowing what doesn't work is very important,

    Now- Anyone know what does work?

    Are there any prefab lights that are adequate for high speeds at night designed to attach directly to the white wire? please post brand names and weblinks in any response.

    After all my research I am now leaning towards the rechargeable systems-The gopeds use one, the pedicabs use one- anyone know of something that is a a ready to buy prefab all in one (head, brake signal light) rechargeable kit? Do the motorscooter companies sell thier electrical system as a seperate unit? it's the same people making our motors.....

    I will post answers when I get any myself....

    I worked for years in fabrication as a project manager, so expect some unique solutions to come out of this thread. I will solve this problem!!! We will have light! And it will be awesome! ...and easy for anyone.

    Also, just want to re-iterate in list form for simplicity my conclusions so far:

    1) You cannot increase the power coming from the white wire.
    2)you cannot replace the magneto coil (with, say, an 12v alternator), as it is also the ignition timer.


    Seperate generator? Type? source of energy?

    Battery? Goped type w/ acutraiments? Rechargeable W/ white line?

    Run an alternator from the wheel rotation?

    Onward through the fog!!!
  17. graucho

    graucho Active Member

    A plea for help....Approx 1900 members and 820 active members. Some one out there has to be an electrician or an electrical engineer. Or someone has to have a family member that can help design a simple system to trickle charge a small battery. It also needs to be able to plug it in at home, without frying the magneto. We need someone to step up with experience. (I know your out there)

    I spent 3 hrs doing an extensive search on this topic. There were over 100 references to this topic and its still a dead issue. This seems to be the only topic this group has'nt solved. This post didnt start off to well, but after searching over 100 areas relating to this topic I think we should make this the last post about it. Put out the word for HELP! Thanks everyone.
  18. Ghost0

    Ghost0 Guest

    I have many electrical engineers at my work. I posed the problem to them and here is their solution. Let me preface this first. There is not enough power out of the magneto to run more than a small light, 6v-3watt. However, there is enough power to charge a battery. The attached circuit shows how to build a charger using the white wire as input and will charge a 12v battery at between .25 to .5 amps. Using a 12v 3.5 Ahr battery, and having it continually charged will give you about an hour worth of lights depending on the bulbs you use. I also attached data sheets for the 2 major components. I haven't done this yet but my next build is going to be a chopper and I intend on full lighting so I will do this.

    Attached Files:

  19. Mike S

    Mike S Member

    I have solved the problem of generating power for lights from the engine, and will present the solution with pics, after I patent the solution. Will provide a kit to
    supply all the 12 volt power needed to be street legal. It was difficult, but I am an inventor and stayed with the problem. Mike S
  20. rebelspirit

    rebelspirit New Member

    Ghost- Definitely moving in the right direction. the loss of light after an hour is a minus though....

    Hub generators create drag and don't produce a signifigant amount of power...Too bad, as I think what is needed to begin with is a method for creating more power on the bike.

    We definitely need a system that works as good as any motorcycle system. enough power to light a powerful headlight, breaklight and four turn signals, be fully self contained and not require constant battery replacement or outside charging. Nor reduce the performance of our rides.

    I am going to do some research now on small motorcycle systems and see if that takes me anywhere...


    1) Some type of battery is needed in the system in order to produce a consistent and constant light source
    2) enough power must be generated to properly and fully charge the battery during ride times