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I have 9 of these: [url=http://www.aliexpress.com/store/product/DC12V-WS2811-star-type-pixel-module-6pcs-5050-SMD-rgb-led-inside-1-44W-IP68-ONE/701799_1602954057.html]http://www.aliexpress.com/store/product/DC12V-WS2811-star-type-pixel-module-6pcs-5050-SMD-rgb-led-inside-1-44W-IP68-ONE/701799_1602954057.html[/url] in a series - first 6 are back to back in line, then an 8ft/2.5m separation to 3 more back to back. The last 3 are flickering, mostly the last one. When set to white they seem to flicker to red mostly. This is more prevalent if some of the first 6 are on, especially when set to white.

I think this is a power issue but I'm confused since the length doesn't seem too long and there's only 9 of them - total 13 watts, so 1.08 amps at 12v.

I run a 24v feed to the first one then use a dc-to-dc converter to drop it down to 12v. The first one is about 30ft/10m from the controller/power source. I measure 12.1v out of the converter at the first star. Converter has a max draw of 5 amps.

Is this a power problem or could it be something else. What mistake might I be making in my power calculations?

Bob

I think this is a power issue but I'm confused since the length doesn't seem too long and there's only 9 of them - total 13 watts, so 1.08 amps at 12v.

I run a 24v feed to the first one then use a dc-to-dc converter to drop it down to 12v. The first one is about 30ft/10m from the controller/power source. I measure 12.1v out of the converter at the first star. Converter has a max draw of 5 amps.

Is this a power problem or could it be something else. What mistake might I be making in my power calculations?

Bob