Brightness demand is not high, radial appropriate is even.

亮度要求不高, 光线宜均匀.

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High light efficency , concentrated light, no additional ballast, which can take place of incandesce lamp, reducing investment fees.

特点:发光效率高,光线集中, 不需要附加镇流器, 可直接与白炽灯互换使用, 减少投资费用.

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