Worked around issue preventing effect from clearing in zwave_js when setting effect type to 'Off'. https://community.home-assistant.io/t/inovelli-z-wave-red-series-notification-led/165483/145?u=mt0321

inovelli_led.yaml

---
# Calculation References:
#   https://nathanfiscus.github.io/inovelli-notification-calc/
#   https://community.inovelli.com/t/home-assistant-2nd-gen-switch-rgb-working/168/62
#   https://docs.google.com/spreadsheets/d/1bEpujdvBPZY9Fl61PZLUWuHanD2VAkRORFZ5D9xjLzA/edit?usp=sharing
#
# Changes:
#   July 22, 2020: Incorporating changes from Kevin Schlichter.
#     https://github.com/kschlichter/Home-Assistant-Inovelli-Red-Dimmer-Switch
#
#   September 17, 2020: There are some massive improvements to my version of this code. Here are the highlights:
#     1. Choose - using the recently added choose: feature a separate call has been created for the Z-wave and OZW
#        versions of the service call.
#     2. Variables - using 0.115’s new variables: feature the variables sent each service call only have to be 
#        calculated once.
#     3. Supported Features - I realized that I could probably tell the difference between modules using the 
#        “supported_features” attribute of each switch. For example my dimmer’s supported features is “33”.
#
#   September 18, 2020: Added "model" parameter with options of dimmer, switch, combo_light, combo_fan. This replaces
#     supported_features as the combo fan/light switch also had the same supported_features value.
#
#   February 24, 2021: Added support for Z-Wave JS in place of OpenZwave (ozw).
#     The ozw code is remarked out for those that still need it.
#
#   February 27, 2021:
#     1. Added zwave_integration at top of "variables:" section to allow users to define which integration is 
#        installed ("zwave", "ozw", "zwave_js"). I just don't see a simple way to auto-detect this.
#     2. Added a comment describing the "model" variable.
#     3. Replaced personal "script.debug" service call with universal "persistent_notification.create".
#        Unremarking these lines could help you troubleshoot why something isn't working as expected.
#     4. Updated broken spreadsheet link with public copy stored in my Google Docs account.
#        Thanks for the heads up Kevin Schlichter!
#
#   March 26, 2021
#     1. Added fields to help users experimenting in the Services Developer Tool.
#
#   April 3, 2021
#   Incorporated @firstof9's changes:
#     1. Set execution mode to "parallel" to all this script to potentially run on more than one devices simultaneously.
#     2. Implement ZWave JS's new zwave_js.bulk_set_partial_config_parameters command.
#   Source: https://gist.github.com/firstof9/b88d072a81c54b314fe7ddb901fc5c29
#
#   [MT0321] May 9, 2021
#   Worked around issue preventing effect from clearing in zwave_js when setting effect type to 'Off'.
mode: parallel
variables:
  # REQUIRED to be one of these options: "zwave", "ozw", "zwave_js"
  # Advanced: If you'd like to have your device list filtered in the Services Developer Tool,
  # then unremark out "integration: zwave_js" under the fields section, and change the integration
  # name to match.
  zwave_integration: "zwave_js"

  # * Strongly recommended -> Use the passed model type ("dimmer", "switch", "combo_light") when present.
  # * If not present, then attempt to identify the type using the "product_name" attribute (which is only
  #   unfortunately only available in the original zwave integration).
  # * Finally, assume the model type is "dimmer".
  model: |
    {% if model is string %}
      {{ model }}
    {%- elif state_attr(entity_id, 'product_name') is string %}
      {%- if 'LZW31' in state_attr(entity_id, 'product_name') %}
        dimmer
      {%- elif 'LZW36' in state_attr(entity_id, 'product_name') %}
        combo_light
      {%- else %}
        switch
      {%- endif %}
    {%- else %}
      dimmer
    {%- endif %}
  parameters:
    dimmer: 16
    combo_light: 24
    combo_fan: 25
    switch: 8
  effect_type_parameter_names:
    dimmer: 'LED Effect Type'
    combo_light: 'Light LED Effect Type'
    combo_fan: 'Fan LED Effect Type'
    switch: 'LED Effect Type'
  node_id: '{{ state_attr(entity_id,"node_id") }}'
  color: |
    {%- if color is not number %}
      {{ color|default("Yellow")|title }}
    {%- else %}
      {{ color|int }}
    {% endif %}
  # 1-10
  level: "{{ level|default(4)|int }}"
  duration: '{{ duration|default("Indefinitely")|title }}'
  effect: '{{ effect|default("Blink")|title }}'
  colors:
    "Off": 0
    "Red": 1
    "Orange": 21
    "Yellow": 42
    "Green": 85
    "Cyan": 127
    "Teal": 145
    "Blue": 170
    "Purple": 195
    "Light Pink": 220
    "Pink": 234
  durations:
    "Off": 0
    "1 Second": 1
    "2 Seconds": 2
    "3 Seconds": 3
    "4 Seconds": 4
    "5 Seconds": 5
    "6 Seconds": 6
    "7 Seconds": 7
    "8 Seconds": 8
    "9 Seconds": 9
    "10 Seconds": 10
    "15 Seconds": 15
    "20 Seconds": 20
    "25 Seconds": 25
    "30 Seconds": 30
    "35 Seconds": 35
    "40 Seconds": 40
    "45 Seconds": 45
    "50 Seconds": 50
    "55 Seconds": 55
    "60 Seconds": 60
    "2 Minutes": 62
    "3 Minutes": 63
    "4 Minutes": 64
    "10 Minutes": 70
    "15 Minutes": 75
    "30 Minutes": 90
    "45 Minutes": 105
    "1 Hour": 120
    "2 Hours": 122
    "Indefinitely": 255
  effects_dimmer:
    "Off": 0
    "Solid": 1
    "Chase": 2
    "Fast Blink": 3
    "Slow Blink": 4
    "Blink": 4
    "Pulse": 5
    "Breath": 5
  effects_switch:
    "Off": 0
    "Solid": 1
    "Fast Blink": 2
    "Slow Blink": 3
    "Blink": 3
    "Pulse": 4
    "Breath": 4
sequence:
  # Preform the Inovelli math.
  - variables:
      parameter: "{{ parameters[model|lower] }}"
      effect_type_parameter: "{{ effect_type_parameter_names[model|lower] }}"
      color: "{{ colors[color|title]|int }}"
      duration: "{{ durations[duration|title] }}"
      effect: |
        {% if model == "switch" %}
          {{- effects_switch[effect|title] }}
        {%- else %}
          {{- effects_dimmer[effect|title] }}
        {% endif %}
      inovelli_math: |
        {%- if effect|int > 0 %}
          {{ color|int + (level|int * 256) + (duration|int * 65536) + (effect|int * 16777216) }}
        {%- else %}
          0
        {% endif %}

  # Unremark to provide an notification with troubleshooting information.
  #- service: persistent_notification.create
  #  data:
  #    title: "DEBUG: script.inovelli_led"
  #    notification_id: "inovelli_led"
  #    message: |
  #      zwave_integration: {{ zwave_integration }}
  #      model: {{ model }}
  #      color: '{{ color|title }}'
  #      level: '{{ level }}'
  #      duration: '{{ duration|title }}'
  #      effect: '{{ effect|title }}'
  #      node_id: '{{ node_id }}'
  #      parameter: '{{ parameter }}'
  #      value: '{{ inovelli_math }}'

  - choose:
      # The Z-Wave JS integration requires this service call.
      - conditions:
          - '{{ zwave_integration == "zwave_js" }}'
        sequence:
          # Clear the previous effect.
          - service: zwave_js.set_config_parameter
            target:
              entity_id: "{{ entity_id }}"
            data:
              parameter: "{{ effect_type_parameter }}"
              value: 0

          # Start the new effect.
          - service: zwave_js.bulk_set_partial_config_parameters
            target:
              entity_id: "{{ entity_id }}"
            data:
              parameter: "{{ parameter }}"
              value: "{{ inovelli_math }}"

      # The OZW integration requires this service call.
      - conditions:
          - '{{ zwave_integration == "ozw" }}'
        sequence:
          # Clear the previous effect.
          - service: ozw.set_config_parameter
            data:
              node_id: "{{ node_id }}"
              parameter: "{{ parameter }}"
              value: 0

          # Start the new effect.
          - service: ozw.set_config_parameter
            data:
              node_id: "{{ node_id }}"
              parameter: "{{ parameter }}"
              value: "{{ inovelli_math }}"

    # The Z-wave integration requires this service call.
    default:
      # Clear the previous effect.
      - service: zwave.set_config_parameter
        data:
          node_id: "{{ node_id }}"
          parameter: "{{ parameter }}"
          size: 4
          value: 0

      # Start the new effect.
      - service: zwave.set_config_parameter
        data:
          node_id: "{{ node_id }}"
          parameter: "{{ parameter }}"
          size: 4
          value: "{{ inovelli_math }}"

fields:
  entity_id:
    description: Light or switch which represents 
    example: light.family_room
    selector:
      entity:
        #integration: zwave_js
  model:
    description: 'Device type: dimmer (default), switch, combo_light'
    example: dimmer
    selector:
      select:
        options:
          - dimmer
          - switch
          - combo_light
  color:
    description: 'Choose a color.'
    example: purple
    selector:
      select:
        options:
          - "Off"
          - Red
          - Orange
          - Yellow
          - Green
          - Cyan
          - Teal
          - Blue
          - Purple
          - Light Pink
          - Pink
  effect:
    description: 'Choose an effect.'
    example: blink
    selector:
      select:
        options:
          - "Off"
          - Solid
          - Chase
          - Fast Blink
          - Slow Blink
          - Blink
          - Pulse
          - Breath
  duration:
    description: 'How long should the effect run?'
    example: 10 seconds
    selector:
      select:
        options:
          - "Off"
          - 1 Second
          - 2 Seconds
          - 3 Seconds
          - 4 Seconds
          - 5 Seconds
          - 6 Seconds
          - 7 Seconds
          - 8 Seconds
          - 9 Seconds
          - 10 Seconds
          - 15 Seconds
          - 20 Seconds
          - 25 Seconds
          - 30 Seconds
          - 35 Seconds
          - 40 Seconds
          - 45 Seconds
          - 50 Seconds
          - 55 Seconds
          - 60 Seconds
          - 2 Minutes
          - 3 Minutes
          - 4 Minutes
          - 10 Minutes
          - 15 Minutes
          - 30 Minutes
          - 45 Minutes
          - 1 Hour
          - 2 Hours
          - Indefinitely