Development of a modular 6-channel current source

Offering remote work. A modular 6-channel current source (led driver) is required.
1. 6 controlled channels of 60 watts, 1A (20 LEDs of 3 watts). Each channel must be controlled by current. The voltage should be automatically supplied, in accordance with the given current.
2. Power channels must be controlled by i2c data bus with galvanic junction
3. Power from 220 volts.
4. Management of esp8266
5. It should be possible to replace the burnt channel separately.