A great engineer from France, he used our RGB led strips for the wall back lighting,he decorated living room with our 5050 warm white panel light and resolved the led strip light and panel light into the model he prefer. it looks much harmonized between lighting and home and gives people a sense of comfort. I was told by the engineer that the quality of led strip light and panel light are highly guaranteed in Derun . Besides, the led strip light is bright enough as well . he really appreciated it for providing such a good material,thus making his design highly appraised by his customer.