... * Opening: 60mm * LED Quantity: 3PCS, high power LED downlight, * Luminous flux: 80-90lumen per watt, 90-120lumen per watt as request ... Product appearance access, component (LED chip and driver)test, finished product test(voltage, current, lumen flux etc. ). 3. Mass production: All products ... including 3600-6000 times on-off-on-off test the drivers) 5. QC test one by one, keep record. 6. Production ...