... ). If driver failed,we'll send new driver;2). If LED failed,we'll send new LED;3). Unclear reason,we will ... ,Anti-corrosion dealing etc.;Driver detailed & long time test;LED chip color temperature,CRI,lumen efficiency test;2).Assembling: following schedule ... Efficiency >90% in reality3).CRI>82Ra,subject color is real and nice4).Heat Dissipation,housing temperature about 40-55 degree5).Package ...