所以準確測試功耗應該是在正常工作時候測試電流電壓。
亮度是Lumens
比如一個LED的電燈泡參數是:
- 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)
所以準確測試功耗應該是在正常工作時候測試電流電壓。
亮度是Lumens
比如一個LED的電燈泡參數是:
• 當然不是線性的,所以測電流。標明的輸入電壓9-32v,說明是9v恒流驅動。還有問題嗎? -味苦- ♂ (0 bytes) () 09/21/2017 postreply 16:43:57
• 簡單的可以接到車電池上量電壓和電流;這是車上正常工作功耗 -soccer88- ♂ (0 bytes) () 09/21/2017 postreply 17:05:55
• LED驅動耗電有限。在驅動input或output測,結果不會差很大。就算是13.4v也不到23w -味苦- ♂ (0 bytes) () 09/21/2017 postreply 17:17:53
• 有問題 -chinomango- ♂ (220 bytes) () 09/21/2017 postreply 19:47:52
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