set_state: Fine grained control of the light state
In sellorm/ekl: R Based Controls For Elgato Key Lights

Fine grained control of the light state

1	set_state(state, brightness = NA, temp = NA, keylight_ip = NULL)

`state`	One of "on" or "off"
`brightness`	int from 1-100. If not supplied the current setting is retained.
`temp`	int corresponding to the desired colour temperature (143-344) If not supplied the current setting is retained.
`keylight_ip`	optional IP address of your Keylight. Setting the EKL_IP env var is preferred