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CWF燈管為美國冷白商店光源（Cool White Fluorescent） 色溫：4150K ，美國客戶常用；公司代理品牌有：飛利浦 PIHLIPS，奇異GE，喜萬年 SYLVANIA等。

GE F20W/33-640 COOL WHITE Made in Hungary
GE F40W/33-640 COOL WHITE Made in Hungary
PHILIPS TL-D 18W/33-640 Made in Poland
PHILIPS TL-D 30W/33-640 Made in Poland
PHILIPS TL-D 36W/33-640 Made in Poland
SYLVANIA F20T12/CW Cool White USA
SYLVANIA F20T12/CW Cool White Canada
SYLVANIA F20W/33-640/RS COOL WHITE Made in Germany
SYLVANIA F40W/33-640/RS COOL WHITE Made in Germany
SYLVANIA F30T8/CW Cool White Made in USA
GE F36T12-CW COOL WHITE USA