The use of different Ji 'nan luminous character of the same point of view is not the same.
用途不同的济南发光字其发光角度不一样。
Ji 'nan luminous character of the light-emitting body for the chip, different chip, the price difference is very big.
济南发光字的发光体为晶片,不同的晶片,价格差异很大。
The same wavelength of Ji 'nan luminous character, the same color, such as the requirements of the same color, the price is high.
波长一致的济南发光字,颜色一致,如要求颜色一致,则价格高。
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