... to carry around Funtion: testing Life time. Power,Power factor,Current, Voltage,and Annual power consumption(calculated by 10hrs/day);Weight ... products ---- full range of measurement of lights to help our current clients to prove the quality of our lights , also help ... (); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Spectroradiometer(LT-SM901)Power , Pf, Voltage ,Current,Apc,cct,lumen