brighter lights help

Discussion in 'Electrical' started by oldpot, Mar 7, 2013.

  1. oldpot

    oldpot Member

    OK i am experimenting with a set of them cheap china 7 led horn/lights etc i took the thing apart as you can see

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    OK the brake (3 lights)and taillight (1 light)as shown the brake lights work ok but not that bright cannot see them from a big distance ,



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    the turn lights are rubbish i cannot see them in day and not bright at night at all they run on 2 AA battery's (3 volts)



    OK
    1/can i add 2 more battery's to make a 4 battery holder to make 6 volts if so ,will i get bright leds??? (i am a noob with electrics so bare with me)

    or
    2/ can i some how get brighter leds for at least the turn lights so i can see them
    i don't know what sort of leds these are but there not that great .

    like i said i a noob with electrics i am just messing about trying to get better brighter lights , mainly for the brake and taillights

    also i made a brake lever brake light with wires coming out of it that i using for the 7 led lights at the moment now could i use them wires to make something better and if so how would i wire them up .
    ty
     

  2. KCvale

    KCvale Motorized Bicycle Vendor

    Sure you can make that Chinese trash brighter and last a lot longer too.
    Just use a BRC 18650 3A Li-Ion battery, or even 2 in parallel.

    You can find a bunch here http://www.tmart.com/search.html?q=BRC+18650

    They are a little bigger than a AA.

    Then again if you had an electric trike you could put an intense LED in the front and 3 12V incandescent running lights in series for a Christmas Tree rear light effect like this.

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    Anyway, those 18650's are amazing little batteries for the price, you can get a pair with a charger delivered for under $10.
     
  3. geebt48cc

    geebt48cc Member

    KC, hey there........... So, are you saying with using the cheap china AA powered lights, I can get 2- AA rechargeable, but in higher 3.7+ volt? Will that help making brighter??

    TY....................Glen

    Guess they obviously want last as long??????????
     
  4. KCvale

    KCvale Motorized Bicycle Vendor

    An 18650 Lithium Ion battery is not a AA NiCad, they are bigger and a completely different battery technology. A AA NiCad cell is 1.5V and rated up to ~1.5A current.
    Your lights use 2 AA in series to provide 3V and with the best NiCd still a little over 1Ah current.
    http://en.wikipedia.org/wiki/AA_battery

    A rechargeable 18650 cell is bigger than a AA and 3.7V with Amp Hours from 2.3A to near 4A!
    I don't what LEDs you have or the control circuitry is and really don't want to, all I am saying if you want to try something different to make them brighter that is a cheap way to do it.
     
  5. geebt48cc

    geebt48cc Member

    KC, I don't know that much about it either. I just wondered if there would be a way to still use the same set up and size of the two AA batteries, but be able to increase the brightness by stronger battery?

    All is good................Just sorry about my Duhhhhhhhhhhhhhhhhhhhhh?
     
  6. KCvale

    KCvale Motorized Bicycle Vendor

    Voltage makes things brighter, current determines how long it can run. There may be AA size lithium cells but I just don't know.
     
  7. oldpot

    oldpot Member

    i am same with you geebt48 i know nothing about electrics etc and i see all these bikes with great setup and i wish i could do that (or get someone to make me one ) but because i know jack about it i got to work with cheap Chinese stuff heheh but ty kc i might try that for a few bucks see if it works .
     
  8. KCvale

    KCvale Motorized Bicycle Vendor

    For a front light hands down this is the best I have ever seen under $100 and all I buy, run and recommend now.

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    1200 Lumen 8.7V Lithium Ion Battery powered CREE XM-L T6 LED Light.
    Package includes front and rear lights, battery pack with velcro mount case, charger, handlebar mount and some cheesy headband mount thing I laughed at ;-}

    It has High, Low, and Strobe modes, it is removable, rugged and does an outstanding job day or night for less than half what bike shops charge.

    It has it's flaws, the rubber band that holds it to the handle bars is not strong enough to keep it place when you push the button on the back so you have to use another finder to hold it, and the button has an annoying blue light on it when off if you don't disconnect the power but the sheer quality and intensity of the CREE LED hooked to the 7.2V Lithium ion pack (2 pair of 16580 LI series wired batteries in parallel) and a charger for them simply rocks.

    ~$45 delivered from Tmart.com

    Your question is rear lights, that kit has one and I put it on but not what you are looking for.
    Maybe check that sight for what they have in rears but figure at least $30 for something decent and than means it won't be running on AA batteries.
     
  9. Tanstaafl

    Tanstaafl Member

    There is a chance higher voltage just might fry the led lights.

    A quick and easy way to find out is get a little 9v battery and a snap conector to hook up wires to your light and see what effect it has. If A-OK to your satisfatiion, get a few rechargeable 9v batteries and you are good to go.

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    One of the 9v batteries powered this 12v 300 lumen led light on bright for four hours.

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    Last edited: Mar 9, 2013
  10. oldpot

    oldpot Member

    ty kc vale and tanstaafl for the info and pics , looks a nice set up there kc if the lights i got at front or not bright enough i look into that set up ty, i had a 9v battery handy and tested it on the lights from the cheap light set and wow they was a lot brighter and the signal lights i could see them very clear (might try them tonight outside when its dark if they ok)i tried them in daytime was ok and bright , i try and rig something up to use the 9v battery instead of 2 aa ones (nothing blew so i assume the 9v will work ???)or get a few of the BRC 18650 3A Li-Ion battery's kc was on about (about 8v) and see if that will work as well

    now to find the wire that makes the beeping noise when the signal lights come on very loud and annoying lol.
     
  11. KCvale

    KCvale Motorized Bicycle Vendor

    If you had no problem with a 9V then 3 18650's in series should do you well and a good long time between charges.
    The crappy cheap LED rear lights I first tried on my trike were 12V and sucked.
     
  12. Tanstaafl

    Tanstaafl Member

    On the subject of lights, I had bought three of the $7.00 Paradise cast aluminum lights but only used two on the trike. I removed the halogen bulb and replaced with one of the $5.00 Torchstar LED units. Then took a J-box, two 9v batteries hooked up parallel, a cheap toggle switch and makes for a very efficient, but cheap hand held or adjustable work lantern. I have some of the powerful hard drive magnets, will glue them inside of J-box lid for a magnetic base.

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    Last edited: Mar 10, 2013
  13. oldpot

    oldpot Member

    nice lights there m8 how do you fix them to the bike might try make one of them looks bright ,

    well i extended the wires that was on the china lights to a 9v battery (waiting for a 9v battery holder to come ) extended the brake wires to a set up i made for my front double brake lever one for front brake and one as you see a (the white plastic in the barrel hole)when you put brake on it lights back brakes )its a crap thing took 2 hours to sort it out but touch wood it works hope the 2 cree5 lights are bright enough for front (will not be riding night but need them for inspection)the back lights are very bright now (thank you tan and kc for the info on 9v etcetc ) only biggest fear is then i ride the vibration with loosen the cheap wires inside the back lights and make them not work well order 2 more (8 bucks for 2 sets ) and i try mess with one and put better solder on etc i might be coming back this post asking for better lights to use as brake/tail lights hehehe hope not touch wood ).



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