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SUMBAO 6 sloped ceiling led recessed lighting Pioneering in the field through the innovative start and continuous growth, our brand - SUMBAO is becoming a faster and smarter global brand of the future. Products under this brand have brought rich profit and repayment for our customers and partners. Years past, we have established lasting relationships with, and have achieved the highest satisfaction for these groups.square recessed lighting trim 12 inch,9 inch square recessed lighting trim,dimmable led recessed lighting retrofit.