No brightness support for string lights
On/Off works and as of v1.3.1 changing color works, but no brightness slider is available.

Expected to have a brightness slider like how a typical rgb bulb looks.

![IMG_1279](https://user-images.githubusercontent.com/71397056/128652478-5c6552c9-4dea-4a0f-9ee3-26ff3bc6d3dc.PNG)

Adding: DreamcolorString (dj / eb14a8aa828e2210568n1a)
Existing Accessory found Dreamcolor String  eb14a8aa828e2210568n1a 70b64efe-daff-4faf-8f5a-ae79d85aa435

TuyaOpenAPI response: {"result":[{"category":"dj",
"devices":["eb14a8aa828e2210568n1a"],
"functions":[{"code":"switch_led",
"desc":"switch led",
"name":"switch led",
"type":"Boolean",
"values":"{}"},
{"code":"work_mode",
"desc":"work mode",
"name":"work mode",
"type":"Enum",
"values":"{\"range\":[\"colour\",
\"scene\",
\"music\"]}"},
{"code":"colour_data_v2",
"desc":"colour data v2",
"name":"colour data v2",
"type":"Json",
"values":"{\"h\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":1000,
\"step\":1},
\"v\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":1000,
\"step\":1}}"},
{"code":"scene_data_v2",
"desc":"scene data v2",
"name":"scene data v2",
"type":"Json",
"values":"{\"scene_num\":{\"min\":1,
\"scale\":0,
\"max\":8,
\"step\":1},
\"scene_units\": {\"unit_change_mode\":{\"range\":[\"static\",
\"jump\",
\"gradient\"]},
\"unit_switch_duration\":{\"min\":0,
\"scale\":0,
\"max\":100,
\"step\":1},
\"unit_gradient_duration\":{\"min\":0,
\"scale\":0,
\"max\":100,
\"step\":1},
\"bright\":{\"min\":0,
\"scale\":0,
\"max\":1000,
\"step\":1},
\"temperature\":{\"min\":0,
\"scale\":0,
\"max\":1000,
\"step\":1},
\"h\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":1000,
\"step\":1},
\"v\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":1000,
\"step\":1}}}"},
{"code":"countdown_1",
"desc":"countdown 1",
"name":"countdown 1",
"type":"Integer",
"values":"{\"unit\":\"s\",
\"min\":0,
\"max\":86400,
\"scale\":0,
\"step\":1}"}],
"product_id":"ya4l7gc8bsve9lza"},
{"category":"dj",
"devices":["ebd8465c1902aad7d7nf0m",
"eb3bb06f578314cd87gxa5",
"eb068935ed766a9ceccrv7"],
"functions":[{"code":"switch_led",
"desc":"switch led",
"name":"switch led",
"type":"Boolean",
"values":"{}"},
{"code":"work_mode",
"desc":"work mode",
"name":"work mode",
"type":"Enum",
"values":"{\"range\":[\"white\",
\"colour\",
\"scene\",
\"music\"]}"},
{"code":"bright_value_v2",
"desc":"bright value v2",
"name":"bright value v2",
"type":"Integer",
"values":"{\"min\":10,
\"max\":1000,
\"scale\":0,
\"step\":1}"},
{"code":"temp_value_v2",
"desc":"temp value v2",
"name":"temp value v2",
"type":"Integer",
"values":"{\"min\":0,
\"max\":1000,
\"scale\":0,
\"step\":1}"},
{"code":"colour_data_v2",
"desc":"colour data v2",
"name":"colour data v2",
"type":"Json",
"values":"{\"h\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":1000,
\"step\":1},
\"v\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":1000,
\"step\":1}}"},
{"code":"scene_data_v2",
"desc":"scene data v2",
"name":"scene data v2",
"type":"Json",
"values":"{\"scene_num\":{\"min\":1,
\"scale\":0,
\"max\":8,
\"step\":1},
\"scene_units\": {\"unit_change_mode\":{\"range\":[\"static\",
\"jump\",
\"gradient\"]},
\"unit_switch_duration\":{\"min\":0,
\"scale\":0,
\"max\":100,
\"step\":1},
\"unit_gradient_duration\":{\"min\":0,
\"scale\":0,
\"max\":100,
\"step\":1},
\"bright\":{\"min\":0,
\"scale\":0,
\"max\":1000,
\"step\":1},
\"temperature\":{\"min\":0,
\"scale\":0,
\"max\":1000,
\"step\":1},
\"h\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":1000,
\"step\":1},
\"v\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":1000,
\"step\":1}}}"},
{"code":"countdown_1",
"desc":"countdown 1",
"name":"countdown 1",
"type":"Integer",
"values":"{\"min\":0,
\"max\":86400,
\"scale\":0,
\"step\":1}"},
{"code":"music_data",
"desc":"music data",
"name":"music data",
"type":"Json",
"values":"{\"change_mode\":{\"range\":[\"direct\",
\"gradient\"]},
 \"bright\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":1000,
\"step\":1},
 \"temperature\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":1000,
\"step\":1},
 \"h\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"},
{"code":"control_data",
"desc":"control data",
"name":"control data",
"type":"Json",
"values":"{\"change_mode\":{\"range\":[\"direct\",
\"gradient\"]},
 \"bright\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":1000,
\"step\":1},
 \"temperature\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":1000,
\"step\":1},
 \"h\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":0,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"},
{"code":"rhythm_mode",
"desc":"rhythm mode",
"name":"rhythm mode",
"type":"Raw",
"values":"{\"maxlen\":255}"},
{"code":"sleep_mode",
"desc":"sleep mode",
"name":"sleep mode",
"type":"Raw",
"values":"{\"maxlen\":255}"},
{"code":"wakeup_mode",
"desc":"wakeup mode",
"name":"wakeup mode",
"type":"Raw",
"values":"{\"maxlen\":255}"}],
"product_id":"irtacyutgeuicqzz"},
{"category":"dj",
"devices":["eba88461d251c3f3abdfrq"],
"functions":[{"code":"switch_led",
"desc":"switch led",
"name":"switch led",
"type":"Boolean",
"values":"{}"},
{"code":"work_mode",
"desc":"work mode",
"name":"work mode",
"type":"Enum",
"values":"{\"range\":[\"white\",
\"colour\"]}"},
{"code":"bright_value",
"desc":"bright value",
"name":"bright value",
"type":"Integer",
"values":"{\"min\":25,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}"},
{"code":"colour_data",
"desc":"colour data",
"name":"colour data",
"type":"Json",
"values":"{\"h\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"},
{"code":"scene_data",
"desc":"scene data",
"name":"scene data",
"type":"Json",
"values":"{\"h\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"},
{"code":"flash_scene_1",
"desc":"flash scene 1",
"name":"flash scene 1",
"type":"Json",
"values":"{\"h\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"},
{"code":"flash_scene_2",
"desc":"flash scene 2",
"name":"flash scene 2",
"type":"Json",
"values":"{\"h\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"},
{"code":"flash_scene_3",
"desc":"flash scene 3",
"name":"flash scene 3",
"type":"Json",
"values":"{\"h\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"},
{"code":"flash_scene_4",
"desc":"flash scene 4",
"name":"flash scene 4",
"type":"Json",
"values":"{\"h\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"}],
"product_id":"uqq6k9hddclfvlhn"},
{"category":"dj",
"devices":["ebc672fce7bb90a76dgoz1"],
"functions":[{"code":"switch_led",
"desc":"switch led",
"name":"switch led",
"type":"Boolean",
"values":"{}"},
{"code":"work_mode",
"desc":"work mode",
"name":"work mode",
"type":"Enum",
"values":"{\"range\":[\"white\",
\"colour\"]}"},
{"code":"bright_value",
"desc":"bright value",
"name":"bright value",
"type":"Integer",
"values":"{\"min\":25,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}"},
{"code":"colour_data",
"desc":"colour data",
"name":"colour data",
"type":"Json",
"values":"{\"h\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"},
{"code":"scene_data",
"desc":"scene data",
"name":"scene data",
"type":"Json",
"values":"{\"h\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"},
{"code":"flash_scene_1",
"desc":"flash scene 1",
"name":"flash scene 1",
"type":"Json",
"values":"{\"h\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"},
{"code":"flash_scene_2",
"desc":"flash scene 2",
"name":"flash scene 2",
"type":"Json",
"values":"{\"h\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"},
{"code":"flash_scene_3",
"desc":"flash scene 3",
"name":"flash scene 3",
"type":"Json",
"values":"{\"h\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"},
{"code":"flash_scene_4",
"desc":"flash scene 4",
"name":"flash scene 4",
"type":"Json",
"values":"{\"h\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":360,
\"step\":1},
\"s\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1},
\"v\":{\"min\":1,
\"scale\":0,
\"unit\":\"\",
\"max\":255,
\"step\":1}}"}],
"product_id":"kpqczw2d4mnr7plw"}],
"success":true,
"t":1628472299344} path = /v1.0/devices/functions
