# SK9822 strip won't light up

**URL:** <https://forum.electromage.com/t/sk9822-strip-wont-light-up/4678>\
**Category:** Troubleshooting\
**Created:** [April 25, 2026, 10:06pm UTC](https://forum.electromage.com/t/sk9822-strip-wont-light-up/4678 "2026-04-25T22:06:03Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![loren](https://forum.electromage.com/user_avatar/forum.electromage.com/loren/32/3799_2.png) [@loren](https://forum.electromage.com/u/loren)\
**Post date:** [April 25, 2026, 10:06pm UTC](https://forum.electromage.com/t/sk9822-strip-wont-light-up/4678/1 "2026-04-25T22:06:04Z")

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About a year ago I bought a SK9822 strip from here ([HDR Addressable LED strip - SK9822 (APA102 Compatible) – ElectroMage Shop](https://shop.electromage.com/products/addressable-led-strip-sk9822-5-meters-60-pixels-m?variant=43962462601436)) to go with a project I was working on. I didn’t manage to get it working immediately and have just finally got around to working on it again.

When I boot the Pixelblaze, the LEDs won’t respond at all as I try to run different patterns. When I unplug the Pixelblaze, the first few dozen LEDs light up in seemingly random colors (mostly white). I’m injecting 5V power from a 150W PSU at both ends of the strip. I’ve confirmed that my settings look sane (proper LED type and count, BGR, 2 MHz).

What am I doing wrong here?

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**Author:** ![cjn566](https://forum.electromage.com/user_avatar/forum.electromage.com/cjn566/32/3029_2.png) [@cjn566](https://forum.electromage.com/u/cjn566)\
**Post date:** [April 27, 2026, 8:38pm UTC](https://forum.electromage.com/t/sk9822-strip-wont-light-up/4678/2 "2026-04-27T20:38:39Z")

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You’re sure you have data connected to data and clock connected to clock?

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**Author:** ![system](https://forum.electromage.com/uploads/default/original/1X/98123d16088a5451b5a585e24c0f2a40dd76061e.png) [@system](https://forum.electromage.com/u/system)\
**Post date:** [August 25, 2026, 8:39pm UTC](https://forum.electromage.com/t/sk9822-strip-wont-light-up/4678/3 "2026-08-25T20:39:14Z")

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