... pcs sewing machine and electricity cost USD 0.13/degree. In one year Led will save USD1129 and USD3955 for you separately ... in one year, comparing with energy-saving lamp energy and Fluorescent Tube. 4.Easy installation: Magnet or screw mounting, easy ... Feiyue, Brother,Singer,Zoje,Sunstar,Gemsy,Jukl,MAQI available. 1W LED Screw on sewing machine lamp