... Input voltage: AC220-240V * Current: 300mA * LED downlight is built in driver, constant driver, high performance, overload, ... LED chip and driver)test, finished product test(voltage, current, lumen flux etc. ). 3. Mass production: All ... heating releasing designLow operating temperatureConstant current circuitNo flicker, Protect your eyesWith Constant power driverAvoid unstable voltagewell appearance ...