Light dimmer trimming "virtual" instance

Hi, all!

I’m quite new to Home Assistant and I’ve just registered the account. I hope to be around.

At the moment I’m just experimenting with a simple setup in home assistant to dimm a light in my living room. The setup is HA → USB Zigbee → Zigbee dimmer → Lightbulb

I’ve added the required instances and it works as expected: I can switch ON/OFF the light and control the brightness. The only problem I have is the limits for min/max brightness are around 20-70% (anything below 20% doesn’t produce any light in the bulb, and anything above 70% won’t increase the brightness).

I’d like to make those limits more user friendly by adding a “virtual” entity to control the actual entity. So, I created the following template (I think that’s the proper name, apologies if it’s not):

- platform: template
      unique_id: foo
      value_template: >-
        {% if is_state('light.zigbee_dimmer_1', 'on') %}
        {% elif is_state('light.zigbee_dimmer_1', 'off') %}
        {% else %}
        {% endif %}
        service: light.turn_on
          entity_id: light.zigbee_dimmer_1
        service: light.turn_off
          entity_id: light.zigbee_dimmer_1
      level_template: "{{ state_attr('light.zigbee_dimmer_1', 'brightness') | float / 0.65 }}"
        service: light.turn_on
          brightness: "{{ state_attr('light.zigbee_dimmer_1', 'brightness') | float * 0.65 }}"

(don’t worry if the 0.65 factor doesn’t make any sense with my above definition of 20-70 limits, I just wanted to make a quick test)

Then, I create a card in lovelace to view/control both instances. Somehow, the virtual entity is reading all the data from the physical entity (ON/OFF state and brightness levels), and I can switch ON/OFF the physical light from the virtual instance but I can’t change the brightness level from the virtual entity. It simply ignores the value I dial.

Do you know what I’m doing wrong?

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