避免长距离LED灯带安装（20-50米）闪烁的最佳实践是什么？
我正在进行一个长距离LED灯带的安装（大约20到50米），希望保持亮度和颜色的一致性。在典型的恒压灯带中，远端的亮度会减弱，"白色"的色调也会发生变化，并且在高负载下，有时会出现闪烁现象。
到目前为止，我尝试了常见的方法：使用更高电压的电源（例如24V）、更粗的供电线、更干净的连接器和电源注入。这些方法有所帮助，但我想了解大家认为在可靠性和可维护性方面的“最佳实践”是什么。
问题：
对于长距离安装，您更倾向于分布式电源注入、多个小型电源，还是更高电压的主干电源加上局部调节？
您是否在使用恒流灯带或每段调节以减少电压降造成的伪影方面取得了良好的效果？
对于可寻址灯带（WS281x/SPI/DMX），您在远距离信号完整性方面的常用解决方案是什么（接地、缓冲、差分、升压）？
在实际安装中，有哪些关于线规、电源注入间距和电源余量的经验法则是有效的？
我并不寻求产品推荐，而是希望了解那些可扩展且不会成为维护噩梦的工程模式。期待听到哪些方法有效（以及哪些无效）。
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I’m working on a long-run LED strip installation (think 20–50 meters) and I’m trying to keep brightness and color consistent end-to-end. On typical constant-voltage strips, the far end dims and “white” shifts, and under high load I sometimes see flicker.<p>So far I’ve tried the usual: higher voltage rails (e.g., 24V), thicker feeder wires, cleaner connectors, and power injection. It helps, but I’m curious what approaches people here consider “best practice” for reliability and serviceability.<p>Questions:<p>For long runs, do you prefer distributed power injection vs multiple smaller PSUs vs a higher-voltage backbone + local regulation?<p>Have you had good results with constant-current strips or per-segment regulation to reduce voltage-drop artifacts?<p>For addressable strips (WS281x/SPI/DMX), what are your go-to fixes for signal integrity over distance (grounding, buffering, differential, level shifting)?<p>Any rules of thumb for wire gauge, injection spacing, and PSU headroom that have held up in real installs?<p>I’m not looking for product recommendations as much as engineering patterns that scale and don’t become a maintenance nightmare. Would love to hear what’s worked (and what didn’t).