The present invention relates to a decorative stone block used as an exterior finishing material of a building, and in particular, to be illuminated by embedding the LED in the form of letters or patterns on the surface of the decorative stone block, without compromising the beauty of the building itself during the bright day In the dark night, the decorative stone block is installed with an LED module that can produce a more beautiful and stylish lighting of the night view of the building due to the soft and colorful lighting effect of the LED module.
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