New home with KinCony products

[sebagarayco]

ok, no problem, just post at here.

Hi Kincony, I'm working with KC868-D16, 12V PowerSupply and 12V 7W dimmer lamp.
I'm using this config:

- name: dimmer-2
    unique_id: dimmer-2
    schema: template
    command_topic: 'dimmer/28e5d2df6311b55XXXXXXXXX/set'
    state_topic: 'dimmer/28e5d2df6311b55XXXXXXXXXX/state'
    command_on_template: >
      {%- if brightness is defined -%}
      ,{"dimmer2":{"value":{{(brightness / 255 * 100) | int - 1}}}
      {%- else -%}
      ,'{"dimmer2":{"value":99}}'
      {%- endif -%}
     
    command_off_template: '{"dimmer2":{"value":0}}'

What I notice is that light only changes from 0 to 20% then it's all the same as if it is at 100%.

How to fix this?