💡 流明转瓦特Lumens to Watts Converter

使用说明与常见问题How-to & FAQ

「流明转瓦特」是什么？What is the Lumens to Watts Converter tool?

按光源光效把流明估算为电功率（W ≈ lm ÷ lm/W）。可设置「流明」、「光源」、「自定义 lm/W」。Estimate watts from lumens using luminous efficacy (W ≈ lm ÷ lm/W). Settings: Lumens, Source, Custom lm/W.

如何使用「流明转瓦特」？How do I use the Lumens to Watts Converter tool?

在「流明转瓦特」中，填写「流明」、「光源」、「自定义 lm/W」等参数，结果会随输入实时计算并显示在下方。In the Lumens to Watts Converter: Fill in "Lumens", "Source", "Custom lm/W"; results are recalculated instantly as you type.

光效Efficacy

LED 常见 80-110 lm/W。LEDs often 80-110 lm/W.

能举个计算实例吗？Can you show a worked example?

例如在「流明转瓦特」中填 流明 = 900，光源 = LED ≈90 lm/W，自定义 lm/W = 80，结果区显示：瓦特：10 W；所用光效：90 lm/W；约：估算，非电气测量For example, entering Lumens = 900, Source = LED ≈90 lm/W, Custom lm/W = 80 in the Lumens to Watts Converter gives: Watts: 10 W; Efficacy used: 90 lm/W; Note: Estimate, not an electrical measurement

哪些输入会被检查？Which inputs are validated?

「流明转瓦特」会检查这些输入——「流明」、「自定义 lm/W」：必须填写，须大于 0；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The Lumens to Watts Converter checks its inputs — "Lumens", "Custom lm/W": required, must be greater than 0; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.

有哪些选项可以调整？What options can I adjust?

「流明转瓦特」的设置：「流明」默认 800；「光源」可选 LED ≈90 lm/W、CFL ≈60 lm/W、卤素、白炽、自定义（默认 LED ≈90 lm/W）；「自定义 lm/W」默认 80。每次生成结果都按当前设置处理。Settings in the Lumens to Watts Converter — "Lumens" default 800; "Source": LED ≈90 lm/W, CFL ≈60 lm/W, Halogen ≈20 lm/W, Incandescent ≈15 lm/W, Custom (default LED ≈90 lm/W); "Custom lm/W" default 80. The result always uses the current settings.

「流明转瓦特」免费吗？需要注册吗？Is the Lumens to Watts Converter free? Do I need an account?

「流明转瓦特」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Lumens to Watts Converter is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.