Had a spare few mins at my computer today, so put together how you could do this in a single automation. There maybe slightly better ways, but wanted it to be fully automation UI compatible for you. As such, you can select view in YAML, paste this in and then go back to view in Visual Editor. You will obviously need to change device_ids/entity ids etc.
EDITED: Sorry slight logic issue and used light.turn_on service as it reads much cleaner in yaml to help understand what is happening.
alias: Lounge Light Brightness By Time
description: |-
If light turned on between 19:00 and 06:00, only turn on at 30%
If light turned on at other time turn on at 100%
If light on at 19:00, dim to 30%
If light on at 06:00, set to 100%
trigger:
- platform: device
type: turned_on
device_id: 95c4891f8fbafcfb898b84c72125c92d
entity_id: light.lounge_main_light
domain: light
id: LightOn
- platform: time
at: "19:00:00"
id: Night
- platform: time
at: "06:00:00"
id: Morning
condition: []
action:
- if:
- condition: trigger
id: LightOn
then:
- if:
- condition: time
after: "19:00:00"
before: "06:00:00"
then:
- service: light.turn_on
data:
brightness_pct: 30
target:
entity_id: light.lounge_main_light
else:
- service: light.turn_on
data:
brightness_pct: 100
target:
entity_id: light.lounge_main_light
- if:
- condition: and
conditions:
- condition: trigger
id: Night
- condition: state
entity_id: light.lounge_main_light
state: "on"
then:
- service: light.turn_on
data:
brightness_pct: 30
target:
entity_id: light.lounge_main_light
- if:
- condition: and
conditions:
- condition: trigger
id: Morning
- condition: state
entity_id: light.lounge_main_light
state: "on"
then:
- service: light.turn_on
data:
brightness_pct: 100
target:
entity_id: light.lounge_main_light
mode: single