Be applied to environment light controlling circuit of refrigerator walk -in

The utility model discloses a be applied to environment light controlling circuit of refrigerator walk -in, including the control unit, a plurality of LED driver, a plurality of LED drivers are through single data line serial communication's mode series connection, and a LED driver at limit is connected through single data line serial communication's mode with the control unit, drive LED of the same kind is luminous at least for every LED driver, and each way LED sets up in the refrigerator walk -in, the control unit sends environment light control command through single data line serial, and after every LED driver was sent to in the instruction, it is luminous that every LED driver corresponds LED according to received instruction adjustment. Further, every LED driver driven LED sets up on a transparent strip body, should transparent strip body sets up at refrigerator walk -in interlayer top periphery. The utility model discloses can realize different illumination modes to the different positions of refriger