Features : ·Output constant Voltage ·Range: 100-277VAC ·Built-in active PFC function ·Efficiency up to 91.5% ·Protections: short circuit /over load /over temperature ·Cooling by free air convection; IP66 design for indoor or outdoor installation ·Dimming function: Wifi or Bluetooth wireless dim., can be controller by Mobile App or Smart speaker, like Google home or Amazon echo Adopt TUYA module, 8K Hz PWM output; Minimum dim level is 1% ·Different channels to be chosen, 1CH, 2CH, 3CH, 4CH, 5CH ·Suitable for intelligent LED lighting for all over the world