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Ws2812b led problem Answered

Last year I put up 500 led round my home for Christmas (a permanent feature) . About 2 weeks ago I tried them and everything was fine. Over the weekend I added a Sonoff basic (better than a time switch) and had to adjust a small section as they were out of line. Since that (I'll fated) adjustment some of the LEDs have started to play up... I have the leds cycle RGB over several seconds, for testing, but the last 50 or so go berserk and rapidly flash white (and other colours). It's going to be PITA but do I replace the faulty(?) led/s or can I bridge what (may be) the fault and test the others??? The display leds are ip67 rated tied to plastic conduit with power injection at either end of the 5 strips I use. Ive checked the voltage (both ends) and I get 5v so it's not power issues. I've tried to upload a pic (possibly a video) to show what happens. The fault is in the last strip of leds towards the end of the circuit. Many thanks

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Downunder35m

20 days ago

I had all sorts of troubles with these Chinese LED strips.
Does not matter if just the thin strip (LED's fail after a few weeks) or the enclosed ones.
The worst for me are the so called waterproof lights as they seem to only keep water in but not out.
If you check your trips carefully you will find wet areas that show corrosion.
Mainly around the solder points, sometimes also close to the connector bit.
Repair is usually not possible once the thin copper layer is oo fa gon.
Only way out i to replace the broken sections.

No matter how high the rating, for anything that yould get wet or is exposed to the outside enviroment I add silicone to create a better seal.

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Boo-DingsDownunder35m

Reply 20 days ago

That's what I thought... Possibly my worst nightmare but I had to ask. Out with the soldering iron, silicone, and heat shrink and see what I can fix. ☹️