can i wire a switch into this light?

Discussion in 'Electrical' started by happyjourney, Feb 29, 2012.

  1. happyjourney

    happyjourney Member

    i wanted to get one of these

    but i want to have one of these to switch it

    i was thinking of making the high beam setting the actual on setting and the low beam setting my running lights/parking lights. the light itself has the switch on the rear of it but i wanted something i don't have to let go of the handlebars to switch. i don't know whats inside of one of those wires when you cut them open thats why i'm asking. i'd assume its two electrical lines of current but on those type of wires (ones with the barrel connectors) but the don't just have two wires in them usually do they? is it usually one wire in the middle with one layer of insulation then a netting of wire wrapped around that? i'm kinda clueless but i'm thinking its possible as the cord seems perfectly rounded.

  2. Al.Fisherman

    Al.Fisherman Active Member

    What I'm thinking is that it can work. If I was to do something like what you want, I'd go into the light and disconnect the on board switch and wire the handlebar switch into the wires. You would be trading one switch for another one.
  3. happyjourney

    happyjourney Member

    is there two wires in those cables or one with a shielding wire surrounding it is what i want to know. i think i want to leave the normal switch because it has four settings and theres electronics and things my brain can't comprehend easily. i wanted to use the switch to connect and disconnect the power cord basically. is this an easy solder job?
  4. happyjourney

    happyjourney Member

  5. Al.Fisherman

    Al.Fisherman Active Member

    As long as you want just a ON/OFF switch, you can cut the lead. I can't understand why you would want a ON/OFF switch at the handlebars...turn it on before motoring, off when finished. To use the other features on the light, you still have to take your hands off the handlebars.
  6. loquin

    loquin Active Member

    That light is a multi-mode one; I assume that it has a rubber-covered momentary switch on it somewhere. Press the switch once, it goes to hi. Press it again within a second, it then goes to low. Press it again, within a second, it starts flashing. Press it again within a second, it goes off. If you delay for longer than a second (apx) at any one of the three light modes, when you press the switch, the light goes off.

    When you plug in the batteries, the light doesn't go on until you press the momentary switch, to tell it what mode it needs to be using.

    If you add a toggle switch incline with the power, you can certainly turn the light off. The new toggle switch will be a sort of kill switch. But, to turn the light on, you'll have to turn on the toggle switch, then select the mode by pushing the momentary switch, one to three times, anyway.

    PS - If I were still installing an extra 'kill' switch in this lighting circuit, I would wire the switch into a male and female power plug, rather than cutting the wire. Ref the sketch, below. This way, if you ever decide to sell it, the light will not have been 'tampered with.' Just unplug the extra switch, the the light is back to the showroom status.

    Attached Files:

    Last edited: Mar 2, 2012
  7. happyjourney

    happyjourney Member

    i know this is a bad idea so lets forget it. i wanted to wire up a 55watt motorcycle headlight to this handlebar switch but i saw a review that somebody wrote on amazon and it said that this switch burnt up in twenty minutes wired up to a 55watt headlight. now i'm thinking maybe a 35watt will work. or maybe i'll just get 40 minutes out of it. i was going to setup a whole motorcycle/moped like rig with turn signals and relays with brake lights and parking lights low beam and high beam with a horn running off a car battery i would have in a basket on a back rack. i figured i could charge the battery up every night. think it will work? this is a learning experience for me and i'm learning as i go along here. i'm willing to jump in head first with my cash and take a chance at frying something.
  8. happyjourney

    happyjourney Member

  9. HeadSmess

    HeadSmess Well-Known Member

    this is what relays are for. the switch cant take hi currents, the relay can.

    the switch controls the small "pull in" current needed by the relay instead.

    55 watts. bright but your battery wont last long.

    whereas a 4W 4LED downlight off ebay for $4 produces almost twice the lumens. and with 1/12 the power consumption.... go figure

    back to the LEDs... the beam options are controlled by a small microprocessor. switch tells it which option to select. processor then "chops" the voltage, the percentage of "on" to "off" time determines brightness.

    you can make them turn on by placing them near a welder or other source of interference (unsupressed ignition systems :jester:)

    YOU DONT NEED LOW BEAM ON A BICYCLE! just blind the $#^ and make sure they know youre there!
  10. happyjourney

    happyjourney Member

    do i have to have some special led conversion kit to make a bulb like that work in a normal teardrop spotlight? i'm gonna do some more searching.
  11. happyjourney

    happyjourney Member

    i have to have relays on the headlight?
  12. loquin

    loquin Active Member

    If you're going to be using an auto style headlight (55 W,) you certainly should.

    the bulb will pull over 4 amps after it has warmed up, and a LOT more than that when it's initially turned on.

    (Tungsten, the filament material in most bulbs, has a positive temperature coefficient of resistance, meaning that, as temperature goes up, so does the resistance in the wire.) Initially, when the filament is cold, the resistance is very low, and the current is correspondingly high. Since, when you switch it on, the current draw is very high, it would fry your switch after not many times of switching it on.

    A relay is designed to switch heavier loads, and it only needs a small current to the coil to energize it. This saves your switch contacts.