所以准确测试功耗应该是在正常工作时候测试电流电压。
亮度是Lumens
比如一个LED的电灯泡参数是:
- Brightness: 1,500 Lumens
- Life hours: 1,0000 hours (based on 3 hours/day)
- Light appearance: 5,000K (daylight)
- Energy used: 14-Watt (equivalent to a 100-Watt standard incandescent light bulb)
所以准确测试功耗应该是在正常工作时候测试电流电压。
亮度是Lumens
比如一个LED的电灯泡参数是:
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当然不是线性的,所以测电流。标明的输入电压9-32v,说明是9v恒流驱动。还有问题吗?
-味苦-
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09/21/2017 postreply
16:43:57
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简单的可以接到车电池上量电压和电流;这是车上正常工作功耗
-soccer88-
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09/21/2017 postreply
17:05:55
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LED驱动耗电有限。在驱动input或output测,结果不会差很大。就算是13.4v也不到23w
-味苦-
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09/21/2017 postreply
17:17:53
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有问题
-chinomango-
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09/21/2017 postreply
19:47:52
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