The reason for higher internal efficiency but lower brightness is its poor external efficiency.

发光二极管内量子效率高而亮度不高的原因是外量子效率低。

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But Sharenow and Horn didn't believe a lower-brightness light could produce the market results they were after.

不过Sharenow和Horn不认为一款低亮度的照明产品能带来他们追求的市场反应。

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Even though the window at L-band is the best choice for salinity remote sensing, the sensitivity of brightness temperature to SSS is lower than that of the other variables.

盐度的被动微波辐射遥感虽然在L波段灵敏度最高，但是其在L波段的灵敏度低于其它许多变量，因此对盐度反演模型精度要求很高。

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As the name suggests, it's also backlit, with sensors that turn on the lights when your hands are hovering, and lower the brightness when backlighting isn't necessary.

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The algorithm can be configured to maintain "constant image brightness" (which results in lower power consumption) or to maintain "constant illumination power" (which results in higher image brightness).

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In lower light conditions that allow a reduction in brightness, the battery life increases accordingly.

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