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Why does my led strip only light if I push the middle led of every section ? Answered

So basically I have a 3528 12v led strip (monochrome blue not rgb) ,I made a portable power supply of two AA 6V battery boxes which I connected and then I connected those with the cables connected to the led strip ,I tried this with soldered cables on the leds ,clip on connectors to just 3 leds then up to 9  to see if it works ,but the same problem persists ,the LEDs only light if I push the middle led of each section  (which is 3 LEDs ) , I also tried this with a 5050 led strip and the problem still persisted. What might be the problem? Is the power supply not enough?
The powersupply in question :

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iceng

2 years ago

PARALLEL and SERIES

S+P-SW1.GIF
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Downunder35m

2 years ago

LED strips usually run on 12V and not 6V.

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tomatoskinssteveastrouk

Answer 2 years ago

It looks like they are wired up in parallel and not in series. If that is the case, they will still be delivering 6V but with twice the current available.

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MagdaleneK1tomatoskins

Answer 2 years ago

so how to i connect them in series ? Do i connect the - of one with the + of the other ,or will that just destroy the whole thing ?