求翻译：2. 發現現有支架的質量亦是問題所在，因為當中的鎮流器(俗稱 : 火牛)，其本身的耗電量，遠高於表明的瓦數，故對電力的消耗更大及浪費。是什么意思？

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2. Discovered that the quality of existing support is the issue is also, because middle ballast (popular name: Hot cow), its power consumption, is higher than the wattage that indicates, therefore is bigger to the consumption of electric power and waste.

2. Discovered the existing support the quality also is the question is at, because middle ballast( popular name: The fire cow), its itself power consumption, far is higher than the wattage which indicated, therefore is bigger to the electric power consumption and the waste.

2. the quality of existing bracket is also a problem, since the ballast (commonly known as: AC adapter), the power consumption of its own, much higher than the indicated wattage, so the greater power consumption and waste.

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