LED strip

Discussion in 'General Electronics Chat' started by Dritech, Jan 31, 2013.

  1. Dritech

    Thread Starter Well-Known Member

    Sep 21, 2011

    I am going to buy 20X 5 meters of LED strip which consumes 1.2A per 5 meters. Each set comes in 5 meters. Now i have two questions:

    Question 1)

    Can I connect 20 sets (5m each) in series to form a 100m strip??

    Question 2)

    If I use a power supply similar to the one in the link below, will it work fine? does it have a stable 12V supply and is it safe?

    Since these strips consumes 1.2A per meter, I assume 100m will consume 24A, so is a 30A power supply enough?


    Thanks in advance.
    Last edited: Jan 31, 2013
  2. SPQR


    Nov 4, 2011
    Do they have connectors at the distal ends to allow them to be run in series?

    If they do, then a datasheet would tell you how many you can put together.

    If they don't you could buy lots of wire and put them in parallel, but make it "look" like series.

    If it's only 24A, then it looks like your supply will do it.

    You could also hook them up one at a time and see if it explodes.:)
  3. Dritech

    Thread Starter Well-Known Member

    Sep 21, 2011
    Hi, thanks for the reply.

    I think this can be done since it has solder pads at each end.

    The problem is that they don't come with a datasheet :S

    In fact, that's what I was planning to do ;)

    Any more ideas and suggestions would be very welcomed :)
  4. SPQR


    Nov 4, 2011
    THIS talks about putting strips in parallel for longer than 5 meters.

    You might search the site you bought it from and see if they have recommendations.
  5. Audioguru


    Dec 20, 2007
    I hope that you are using a power supply that is certified to be used in your country (UL, CSA or a European certification).

    Caution. A CHEEP (cluck cluck) Ying-Yang Chinese E-bay junk power supply usually is not certified. If it burns down your home or business then the insurance company will refuse your claim.
    Dritech and SPQR like this.
  6. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    I highly doubt you can connect more than a few together if any..

    and yes.. I'd go with a little more powerful well known branded power supply for safety.
    You DON'T want to push any limits with unknown quality components. I usually go 125-150% higher rating than what I need for the power supply.