I purchased ws2811 RGB Strips earlier this year from Ali. They were no name brand and came in a grey antistatic wrapper. They work perfectly with my falcon controller. I ordered more lights and they came in a white package with the brand "BTF-Lighting". I cannot get them to work with my controller at all. The spools and the strips look identical. Both 12v, 5m long, WS2811. Has anyone had any experience with this brand?