low voltage dumb strings, where to buy?

Discussion in 'Lights - Store Bought and Home Made' started by marmalade, Jul 16, 2017.

  1. marmalade

    marmalade cats & pixels

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    Have been trawling the internet for some simple fairy light type strings that aren't wired for those mulitfunction controllers Most of the ones I have bought are mfc at 200VDC.

    These need some tol be used for fillers on the lawn and just throwing over random stuff, but controlled of course. Any that work at 30V without any reverse polarity trickery would be perfect!

    Anyone found sources?

    thanks :)
     
  2. danv

    danv Apprentice Elf

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    Bunnings had some last year. They are 30V strings and had multi function controllers but I removed them
     
  3. danv

    danv Apprentice Elf

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    Their single colour ones didnt need any trickery from memory.
     
  4. David_AVD

    David_AVD Good news, everyone!

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    Even the Bunnings white strings I examined last year were the polarity-swap type.

    I've made a 2801 input DC board to control them (for my own use).

    Hanson Electronics makes a DMX version. Can remember if he has a pixel input one.
     
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  5. keithsw1111

    keithsw1111 Full Time Elf

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  6. diyer

    diyer Full Time Elf Generous Elf

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  7. diyer

    diyer Full Time Elf Generous Elf

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    FYI, since contacting these Chinese manufacturers, they regularly send me their e-catalogues, a recent one is attached:

    Hi Steve

    How are you? Hope everything is going well with you,

    Last year because the shipping cost is expensive, So we not cooperate on led string lights samples, Hope this year we can cooperate with you,
    The attachment is the E-catalogue of our company products,please check,
    Have any interested item, Please kindly inform us, We are happy to tell you more details.

    Looking forward to hear from you soon,

    Best Regards

    Lucy ma
    Sales manager
    Whatsapp/Tel:+86 15813196273

    https://deasonlighting.en.alibaba.com/productgrouplist-802275104/LED_Curtain_Light.html?spm=a2700.8304367.0.0.mFlYQx
     

    Attached Files:

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  8. danv

    danv Apprentice Elf

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    The colour units I found were but they did have a range last year of "simple" white and blue strings. I had to actually open boxes and look as the staff on at the time werent sure.
     
  9. David_AVD

    David_AVD Good news, everyone!

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    Interesting. Were the single colour strings 2-wire and with no button on the controller / power supply?
     
  10. danv

    danv Apprentice Elf

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    Yes 2wire. But it wasnt obvious. I had to take boxes open to be sure.
     
  11. David_AVD

    David_AVD Good news, everyone!

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    All of the 2-wire strings (and some other stuff like rope lights) I've seen at Bunnings use the polarity swap method.

    Even some of the solar strings (Arlec for example) have been this way for 2 years now.
     
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  12. diyer

    diyer Full Time Elf Generous Elf

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    Another option would be to convert battery powered strings? You can get 10M LED strings from eBay sellers http://www.ebay.com.au/itm/10-500-L...-Decor-/311692680465?var=&hash=item489254dd11

    These strings use LEDs in parallel so you can easily change the length, the battery box has 3 AA batteries, an internal resistor drops the voltage to 3.3V (from memory) I used a small buck converter to drop from 24V to 3.3V I have used the red and white strings around candy canes
     
  13. David_AVD

    David_AVD Good news, everyone!

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    I've done the same thing with the battery operated sets of 10 and 20 string lights (or motifs and the like), mainly for Halloween.

    If you're not dimming them, a $1 buck converter is easy, efficient and covers a wide input voltage range.

    If you do need to dim them and want the voltage conversion contained to the string, resistors are the way to go. Much less efficient and only good for a fixed input voltage of course.
     
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  14. danv

    danv Apprentice Elf

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    Yes 99% of them were that. I spent a good few hours there finding the few strings that weren't.
     

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