 SOLON, Ohio--BUSINESS WIRE-- EnergyFocus--Energy Focus, Inc. NASDAQ:EFOI, a leader in sustainable and human-centric lighting HCL technologies, including its UVTM by Energy Focus portfolio of virus-targeted UVC disinfection products, announces it will present at the H.C. Wainwright 23rd Annual Global Investment Conference. The conference is being held virtually on September 13-15, 2021. Mr. James Tu, Chairman and Chief Executive Officer of Energy Focus, will provide an overview of the Companys busines 