enable night mode

I want to be able to turn on and off the night mode (as on the complete remote control)

On page 13, your api (Yeelight_Inter-Operation_Spec.pdf) says the following:
Parameters: 3.
“power” can only be “on” or “off”. “on” means turn on the smart LED,
“off” means turn off the smart LED.
“effect”: Refer to “set_ct_abx” method.
“duration”: Refer to “set_ct_abx” method.
“mode” (optional):
5: Turn on and switch to Night light mode. (Ceiling light only).

pi@raspberrypi: php /home/pi/php-miio/miio-cli.php --ip --token f80c22a0289b5b088a2ff06f7599c49 --sendcmd ‘{“id”:1,“method”:“set_power”,“params”:[“on”,“smooth”,500,5]}’
Device is available and responded:

it turned out to turn on night mode, but I can’t get out of it without the remote