... Light efficiency:75-85 Quality Assurance1. UL&CUL are listed of Hangzhou Zhekang’s 40w,80w,120w,150w,200w induction ... Zhekang is,we accept any changes of induction lamps from Hangzhou Zhekang freely,but it ... been sold,used,with good original packing;The induction lamps are at the period of 5year ... 4.There's no liquid mercury of the induction light,which can lighten the chemical pollutions. Update Date ...