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2吸顶灯的灯管 其灯管大多是弯折后的t5荧光灯(图2)，品种规格繁多，主要有以下几种。（a）圆环形（b）u形（C）2d形 图2. 用于吸顶灯的荧光灯 1.3吸顶灯的功率，并
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用在日光灯管，等led照明产品 Cree芯片3629 20ma 7lm 30ma 12lm 40ma 15lm 60ma 22lm ra:70-80 80-90 90-10
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