ABOUT US LUMU was founded in 1993. We are the professional power tool's developer and manufacturer. Our headquarter is in 2002 S Wentworth Ave, FL 2, Chicago, IL, 60616.We exist for the simple target: Do the better tool, To easy your work. We have a young and creative R&D team . Well experienced Quality Control Team. Efficient and Passionate Sales Team. Endless Support for after sale service. "do the better tool, to easy your work?"