LED MR16 5050-12SMD 1)smd5050 12led 2)Volt:12V 3)LED quantity :6,9,12,15,18,21SMD ITEMColor TemperatureLEDInput VoltagePower ( ... one testing , c)and we have 5 test steps , testing led dip , testing semi-finished products , and testing finished products. we ...