... are one of the biggest suppliers of the solar module line equipments in mainland China, we have customers ... EL TESTER IS WIDELY USED TO TEST THE SOLAR MODULE , FOR MORE INFROMATIN, PLEASE E-MAIL US. ... I curve, V curve, and standard cell I curve3.Test data: Voc, Isc, Pm, Vpm, Ipm, FF,Eff, ... uniformity≤±2% Class ARadiation instability≤±1% Class ATesting data uniformity≤±0.5%Illuminant Life time≥10,000 times ...