The LED fixture shall be operated at constant and carefully regulated current levels. LEDS shall not be overdriven beyond their specified nominal voltage and current.

LED灯具须在稳定的、精心调控的电流强度下运行，不应在超过其额定电压或额定电流的情况下超负荷运行。

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The NiZn cell has a nominal voltage of 1.65V, which is 30% higher than that of a NiMH cell (1.25V nominal). When freshly charged, its terminal voltage is even higher at 1.85V!

镍锌充电电池正常工作电压是1.65V，比常规的镍氢电池的1.25V高出30%。当刚充完时，两个端极的电压甚至能高达1.85V！

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Undershoot Undershoot refers to the amount by which voltage or frequency drops below the nominal value as the voltage regulator or governor responds to changes in load.

下超调下超调指电压调整器或控制器在应对负荷变化时，电压或频率低于额定的量。

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