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多年来，我一直讨厌租来的房子里的顶灯——刺眼的 5000K 吸顶灯，让一切看起来都像办公室。我终于把它们拆了，用 WS2812B LED 灯带替换了每个光源。总成本：180 美元，2 天工作时间，墙上没有留下任何孔洞。我做了什么 • 42 米 60 LED/米 WS2812B (5 V，从 AliExpress 购买，3.8 美元/米) • 3 × 5 V 40 A 电源 (每个 22 美元) 藏在壁橱里 • 一个运行 WLED 的 ESP32 (刷机只需 3 分钟) • 集成 Home Assistant，用于昼夜节律照明 + 运动触发 • 漫射器：12 美元宜家 LACK 搁板 + 来自当地五金店的半透明亚克力板令人惊讶的数字全白时的实际功耗：整个公寓 180 W (用 Kill-A-Watt 测量) 这比我拆掉的三个 60 W 相当于白炽灯泡的功耗还要低。如果我 24/7 开着灯，每年花费 12 美分/千瓦时：大约 30 美元。最大的教训：漫射器比 LED 更重要。没有它们，看起来就像游戏电脑爆炸了一样。

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For years I hated the overhead lights in my rental – harsh 5000K ceiling fixtures that made everything look like an office. I finally ripped them out and replaced every light source with WS2812B LED strips. Total cost: $180, 2 days of work, zero holes in walls.<p>What I did • 42 meters of 60 LEDs/m WS2812B (5 V, bought from AliExpress for $3.8/m) • 3 × 5 V 40 A power supplies ($22 each) hidden in closets • One ESP32 running WLED (took 3 minutes to flash) • Home Assistant integration for circadian lighting + motion triggers • Diffusers: $12 IKEA LACK shelf + transluscent acrylic from local hardware store<p>Surprising numbers Real power draw at full white: 180 W for the entire apartment (measured with Kill-A-Watt) That’s less than the three 60 W-equivalent bulbs I removed. Cost per year at 12 ¢/kWh: ~$30 even if I leave them on 24/7.<p>Biggest lesson: diffusers matter more than the LEDs. Without them it looks like a gaming PC exploded.

我把公寓里所有的灯都换成了可寻址 LED 灯带。