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Before installing the light bulb, you should look at the tag in the fixture socket and make sure the maximum wattage for the bulb
安装灯泡前,应先看灯具底座上的标签,从而确定此灯具所允许的最大功率
The lumen is the real measurement of brightness of a light bulb, and is the number you should look for when shopping for LEDs
光通量才是衡量灯泡亮度的真正标准,也是我们买 LED 灯时需要关注的数字
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