tuya-local/custom_components/tuya_local/devices/rgbw_lightbulb.yaml

name: RGBW lightbulb
products:
  - id: cqekgipywslyavsr
    name: Merkury BW904 Smart Bulb
  - id: p2i2oapbnxftdukj
    name: Merkury BW904 Smart Bulb
primary_entity:
  entity: light
  dps:
    - id: 1
      type: boolean
      name: switch
    - id: 2
      name: color_mode
      type: string
      mapping:
        - dps_val: white
          value: white
        - dps_val: colour
          value: hs
    - id: 3
      name: brightness
      type: integer
      range:
        min: 25
        max: 255
    - id: 5
      name: rgbhsv
      type: hex
      format:
        - name: r
          bytes: 1
        - name: g
          bytes: 1
        - name: b
          bytes: 1
        - name: h
          bytes: 2
          range:
            min: 0
            max: 360
        - name: s
          bytes: 1
          range:
            min: 0
            max: 255
        - name: v
          bytes: 1
          range:
            min: 0
            max: 255
    - id: 6
      name: scene
      type: hex
      optional: true
    - id: 7
      name: flash_scene1
      type: hex
      optional: true
    - id: 8
      name: flash_scene2
      type: hex
      optional: true
    - id: 9
      name: flash_scene3
      type: hex
      optional: true
    - id: 10
      name: flash_scene4
      type: hex
      optional: true