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Lukios Secret Garden

Discussion in 'LED and other Lighting' started by lukio, Feb 14, 2016.

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  1.  
    coreywebster

    coreywebster Well-Known Member

    You want a 100k pot, available on ebay for about 50p-£1.5
    You wire blue/positive wire to centre pin (of 3 pins) then black/ground to left pin. You can use right pin, it just changes the direction you turn the knob to dim.
    Its easy to solder it, just buy the cheapest soldering iron you can for a few quid. You might be able to do it just crimping the wires on the pins but not tried it.
    Seriously though its the easiest thing on the whole build to solder.
    Part 7 of 7 of growmau5 DIY LED basics covers it well.
     
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  2.  
    Stone_Free

    Stone_Free Well-Known Member

    Thanks very much for the quick and precise info man, much appreciated!
    The cheapest A version I found was ~£30 more than TME! Probably handy to have a soldering iron too....especially as they are cheap!
     
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  3.  
    Stone_Free

    Stone_Free Well-Known Member

    Thanks man! There is a Wilko 10 minutes walk from home :) Plus they sell a few other bit's that I'll need so it's all good.
    Strips for veg ordered. Strips for flower ordered. drivers for both ordered plus a APV12-12 ordered for the fans going in veg cab. I'm getting there.... oh btw do you know a good cheap source for aluminium angle please?
     
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  4.  
    Stone_Free

    Stone_Free Well-Known Member

    Thermal tape and solid core red/black wire I'll get off eBay...should be about it......
     
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  5.  
    coreywebster

    coreywebster Well-Known Member


    https://www.aluminiumwarehouse.co.u...MI-cDt0qS71wIV5TLTCh3INAEEEAAYASADEgLZs_D_BwE

    This is where I got mine, I got quotes locally too, couldn't believe how much locals wanted for the same thing, like 10x the price.
    These guys will cut to length too, if it suits your build its worth it. All I had to do with mine was drill and bolt it all together.
     
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  6.  
    Stone_Free

    Stone_Free Well-Known Member

    What size bolts would I need please mate? M3 or?
     
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  7.  
    Stone_Free

    Stone_Free Well-Known Member

    @ledgardener has done a simple vid on youtube for soldering the pot - even a muppet like me can't go wrong with that :)
     
    coreywebster likes this.
  8.  
    Stone_Free

    Stone_Free Well-Known Member

    @coreywebster With the pots I'm not sure exactly which to buy? I'm seeing linear mono, logarithmic mono plus stereo for both those types and 1 with a switch. I believe some are for audio? I *think* it's the linear mono I need?
     
    Randomblame likes this.
  9.  
    Stone_Free

    Stone_Free Well-Known Member

    OK man, thanks for your help, saved me a lot of stress!
    P.S. I don't think lukio will mind as it's all led related stuff and not random shite/politics...but obvs it's your decision to delete or not :)
    Pots are 99p delivered on eBay!
     
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  10.  
    Moflow

    Moflow Well-Known Member

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  11.  
    Moflow

    Moflow Well-Known Member

    You're sorted!

    Where are you getting your solid core cable from?
     
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  12.  
    Stone_Free

    Stone_Free Well-Known Member

    Moflow likes this.
  13.  
    Stone_Free

    Stone_Free Well-Known Member

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  14.  
    Moflow

    Moflow Well-Known Member

    I got 2 x 185s from mouser uk a couple of months ago , £95 + 19 ish VAT, free shipping.

    I'm just lazy lol. It's easy enough to use a screw driver to turn my lights up n down.
     
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  15.  
    Moflow

    Moflow Well-Known Member

  16.  
    Randomblame

    Randomblame Well-Known Member


    Hey Stoney,
    this is a single but stranded wire(16x 0,2mm), the describtion is miss-leading.
    Screenshot_20171113-153958.png


    You need something like this:

    https://www.ebay.com/itm/1-5-20-50-...hash=item238d621a33:m:mb9ICjNY9HJQVItZvSW8HYg

    You could also open your phone book, find an electrician near you and ask him for a few feet.

    For dimming you need a linear mono poti with at least 100kΩ or more. A poti with only 95k would limit the driver output to 95%. I take usually a pack of 5 or so to find one usable, LOL! But the are cheap...
     
    Last edited: Nov 13, 2017
  17.  
    Stone_Free

    Stone_Free Well-Known Member

    Hey Rb...Thanks a lot for the info man, much appreciated. Does this mean that the wire is not good for the strips I'm using?
    The pot I've ordered is 100k so that should be sufficient I think.....
     
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  18.  
    Stone_Free

    Stone_Free Well-Known Member

    I've cancelled this order so I'm going to order again and hopefully get the correct stuff this time! Thanks again for spotting this! :)
     
  19.  
    Randomblame

    Randomblame Well-Known Member

    You can use stranded wire as well but it's not recommended by Samsung. Although non soldered single stranded connections are not as durable, you should only twist the wire ends but not solder them additionally.
    BTW,
    Stranded wire is easier to insert if at the same time you press the small button down a bit to open the connector.

    You should test the poti's resistance with an A/V meter. A resistance lower as 100k would limit the driver and there is usually a big deviation within a pack. In a package of 5, I find some with only 91k, but I also measured others with 110k. Too much is not a problem, but not enough is bad. 91k means only 91% light output with poti turned fully open, you don't want that.

    But ther is a solution if your poti have a too low resistence, you can solder an extra 10k resistor in between to get over 100k.
     
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  20.  
    key4

    key4 Well-Known Member

    Must have gone into the wrong thread, i was looking for @lukio s diary.. :confused:

    Hows the plants doing? Been testing veros all day..Hurry up with your break :P
     
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