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Thread: LED headlight on 185s HELP

  1. #1
    Join Date
    Dec 2018
    Location
    OH
    --
    1

    LED headlight on 185s HELP

    Recently purchased a atc 185s, it had the stock headlight but was held together by duct tape. I figured why not improve the lighting so I bought a 7" led lightbar - http://https://www.amazon.com/Niligh...+led+light+bar this is the one. I also bought a universal 4 pin regulator/rectifier. Now the issue I'm having is when at idle and up to roughly 40% throttle the light dims and then shuts off and when the rpms drop it'll turn back on. Is their another component I need or is my only option wiring and mounting a battery somewhere?

    Thanks,
    Avery

  2. #2
    Join Date
    Jun 2009
    Location
    Leander TX
    --
    2,219
    Possibly wrong regulator?

    You need a 2-wire regulator for AC lighting systems like:
    https://www.amazon.com/Trail-Tech-70...74596478&psc=1

    I run one of these on my 350x along with the 350X stock regulator because I had a light bar that just did not like AC at all:
    https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

    I would try just the 2-wire regulator first. I've a 2-wire regulator + LED light bar on ATC70, TRX70, and Tecate with no issues.

    I actually ran LED pods on both the 350X and 85 250R completely stock systems with no issues.

  3. #3
    Join Date
    Apr 2014
    Location
    Edmond, KS
    --
    2,531
    You could try giving ps2fixer a PM. He knows a lot about this type of issue.

  4. #4
    Join Date
    Apr 2012
    Location
    USA
    --
    4,114
    There's two devices that are two wire in the regulator/rectifier category, one is a half wave rectifier (which may or may not have a build in voltage regulator), and the other is purely just a voltage regulator. Like the stock regulator on the 350x is just a voltage regulator, so the whole system is still AC.

    If the 4 wire voltage regulator is made in China, I've having problems getting it to regulate the voltage, it rectifies (AC to DC conversion) just fine. Over voltage on LED's isn't a good thing, but it sounds like your LED light bar has an over-voltage protection circuit built in.

    I'm working on a "DC Power Kit" for the 185/s/200/s machines, but have to either figure out these China regulators (waiting on details from my whole seller that's waiting on a response from their factory), or I'll have to try another source. I personally want a 4 wire full wave rectifier like the stock 200ES used (two wires for AC input, two wires for DC output). a half wave rectifier gives you roughly 1/2 the total power output, while a full wave gives you basically the full power (minus a little voltage from the bridge diodes).

    Anyway, here's my thread on the subject, lot of info and talk about it, might be an interesting read for you. Also most LED light bars are designed for cars/trucks which have a steady 12-14.5v DC power, your 3 wheeler is AC based. From what I've read the LED power driver works on AC, but will last longer on DC. The driver likely will be the first thing to fail, the raw LED's last just about forever (something like 100,000 hours {11.4 years solid on} if I remember right).

    http://www.3wheelerworld.com/showthr...ttery-Charging

    Also fun fact, your engine's alternator is designed very similarly to the 200ES, so the 200ES voltage regulator/rectifier would work great on it. Also max power output is about 50-70w.

  5. #5
    Join Date
    Jul 2019
    Location
    Fontana, CA
    --
    6
    Hey bud, Few questions, are you running this (SMAKNŽ AC/DC TO DC Converter AC 16-28V/DC 16-40V Step Down to 12V/5A Power Supply Module) off the headlight wiring or back at the stator? I was thinking about running this directly off the wiring on on the headlight switch to some LED lights.

    Second question, the 2 wire version is basically grounding to bike, then tap into the positive output of the stator. Then just run the LED lights off the original wiring?

  6. #6
    Join Date
    Apr 2012
    Location
    USA
    --
    4,114
    The AC to DC converter sounds like it might work, but a link with tech specs would be more useful. 5 amp rating = max 60w load. Also, it needs to be a voltage regulator, the input voltage with no load can get very high, like 50-60v, maybe more.

    You could run the regulator/rectifier in either spot. Honda's DC power kit was designed to run off the stator wires, and the main harness wires it normally went to is where the output is hooked up, so all the lighting wiring becomes DC.

    2 wire voltage regulators work by shorting excess voltage to ground. If it has a rectifier built in, then it would be half wave, which is effectively the same thing as running a high amp diode.

  7. #7
    Join Date
    Jul 2019
    Location
    Fontana, CA
    --
    6
    Appreciate you bud!

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