Based on https://gist.github.com/Danielbook/ad8dacabb8dc01e7cf062cbd8c1a00ed but with different brightness values for day and night and support for multiple motion sensors

motion-illuminance-dimmable-nightmode.yaml

blueprint:
  name: Motion-activated Light with illuminance, nightmode and dimmable
  description: Turn on a light when motion is detected and illuminance is below a
    set Lux level. The light will dim before it is turned off to signal that it has
    not detected motion in quite a while. There is also two timers, on for daytime
    and one for nighttime.
  domain: automation
  input:
    motion_entity:
      name: Motion Sensor
      selector:
        entity:
          domain:
          - binary_sensor
          device_class:
          - motion
          multiple: true
    lux_entity:
      name: Illuminance Sensor
      selector:
        entity:
          domain:
          - sensor
          device_class:
          - illuminance
          multiple: false
    lux_level:
      name: Illuminance level
      description: If lux is below this value and motion is detected, the light will
        turn on.
      default: 100
      selector:
        number:
          min: 0.0
          max: 1000.0
          step: 1.0
          mode: slider
    light_target:
      name: Light
      selector:
        target:
          entity:
          - domain:
            - light
    dim_time:
      name: Dim light
      description: The light will start dim this many seconds before it is turned
        off if no motion has been detected to signal that the light will soon turn
        off.
      default: 30
      selector:
        number:
          min: 0.0
          max: 120.0
          unit_of_measurement: seconds
          step: 1.0
          mode: slider
    no_motion_wait_day:
      name: Wait time (day)
      description: Time to leave the light on after last motion is detected during
        the day.
      default: 300
      selector:
        number:
          min: 0.0
          max: 600.0
          unit_of_measurement: seconds
          step: 1.0
          mode: slider
    no_motion_wait_night:
      name: Wait time (night)
      description: Time to leave the light on after last motion is detected during
        the night.
      default: 120
      selector:
        number:
          min: 0.0
          max: 600.0
          unit_of_measurement: seconds
          step: 1.0
          mode: slider
    night_time_start_helper:
      name: Night time helper (Start)
      description: When should it be considered night time?
      default: '19:00:00'
      selector:
        time: {}
    night_time_end_helper:
      name: Night time helper (End)
      description: When should it be considered day time?
      default: 08:00:00
      selector:
        time: {}
    sleep_time_start_helper:
      name: Sleep time helper (Start)
      description: From when do we want to keep the lights off and let the kids sleep?
      default: '23:30:00'
      selector:
        time: {}
    sleep_time_end_helper:
      name: Sleep time helper (End)
      description: Till when do we want to keep the lights off and let the kids sleep?
      default: 06:00:00
      selector:
        time: {}
    day_brightness:
      name: Day brightness
      description: Brightness, in daytime mode
      default: 100
      selector:
        number:
          min: 1.0
          max: 100.0
          step: 1.0
          mode: slider
    night_brightness:
      name: Night brightness
      description: Brightness, in night mode
      default: 20
      selector:
        number:
          min: 1.0
          max: 100.0
          step: 1.0
          mode: slider
  source_url: https://gist.github.com/robsonke/73f7c683ac6f87a7e9e5fe67f2f7e660
mode: restart
max_exceeded: silent
variables:
  local_night_end: !input night_time_end_helper
  local_night_start: !input night_time_start_helper
  local_sleep_start: !input sleep_time_start_helper
  local_sleep_end: !input sleep_time_end_helper
  local_motion_delay_day: !input no_motion_wait_day
  local_motion_delay_night: !input no_motion_wait_night
  local_motion_dim_time: !input dim_time
  local_day_brightness: !input day_brightness
  local_night_brightness: !input night_brightness
  local_current_brightness: >-
    {% if today_at(local_night_end) < now() and now() < today_at(local_night_start)  %}
    {{ local_day_brightness }}
    {% else %} {{ local_night_brightness }} {% endif %}
trigger:
  platform: state
  entity_id: !input motion_entity
  from: 'off'
  to: 'on'
condition:
  - condition: numeric_state
    entity_id: !input lux_entity
    below: !input lux_level
  - condition: template
    value_template: >
      {{ today_at(local_sleep_end) < now() and now() < today_at(local_sleep_start) }}
action:
- service: light.turn_on
  target: !input light_target
  data:
    brightness_pct: '{{ local_current_brightness }}'
- wait_for_trigger:
    platform: state
    entity_id: !input motion_entity
    from: 'on'
- delay: ' {% if today_at(local_night_end) < now() and now() < today_at(local_night_start)  %}
    {{ local_motion_delay_day - local_motion_dim_time }}
    {% else %} {{ local_motion_delay_night - local_motion_dim_time }} {% endif %} '
- service: light.turn_off
  target: !input light_target
  data:
    transition: !input dim_time