Blitzwolf LT21 Light bulb RGBW (8 digits) instead of RGB(6 digits)

I have a couple of lightbulbs from blitzwolf with Tasmota 8.1 installed on them. They are rgbww. Issue that I have is that the brightness of the bulb is not high if I set it through openhab. If I use do it from the Tasmota web web interface I can bring up the brightness. I looks like the colorwheel only sends rgb and not the “W”.
Below are some log entries from Tasmota and the thing/items that I have.



if I enter color 255,255,255,255 or FFFFFFFF in the console the bulb becomes bright. Is there any way to use 8 digits instead of 6 in the colorwheel?

Type switch : power “Power” [ stateTopic=“stat/light/POWER”, commandTopic=“cmnd/light/POWER” ]
Type dimmer : dimmer “dimmer” [ stateTopic=“stat/light/STATE”, commandTopic=“cmnd/light/Dimmer” ]
Type colorHSB : color “color”[ stateTopic=“stat/light/STATE”, commandTopic=“cmnd/light/Color” ]

Switch light_Power “Power []” <sonoff_pow> (light, gpower) {autoupdate=“false”,channel=“mqtt:topic:mosquitto:light:power” }
Dimmer light_Dimmer “Dimmer” (light) { channel=“mqtt:topic:mosquitto:light:dimmer” }
Color light_Color “ColorRGBCW hex [ox%s]” (light) { channel=“mqtt:topic:mosquitto:light:color” }

Slider item=light_Dimmer icon=dimmer label=“Dimmer”
Colorpicker item=light_Color icon=colorwheel label=“Color [%s]”
Text item=light_RSSI icon=network label=“WiFi Signal Strength [%d %%]”

Model BW-LT21

Material PC+PPT
Product Size D70H134MM
Package Size 75
Net Weight 135g
Weight 170g
Input Voltage AC100-240V 50/60HZ
Wattage 10W
Lumen 900LM
LED 6Pcs
RGB SMD5050+20Pcs*WW SMD2835
Color Temperature 3000K+RGB
Connection 2.4GHz Wi-Fi 802.11 b/g/n

See the color picker doc.

I did read that and I have colorpicker in my sitemap. but it does not help me. For example if I go to the blue area my light turns red.

2020-02-17 20:47:32.283 [ome.event.ItemCommandEvent] - Item ‘lamptv_Color’ received command 358.25158535737916,81.53049502200392,68.23362112045288

2020-02-17 20:47:32.914 [ome.event.ItemCommandEvent] - Item ‘lamptv_Color’ received command 35.537672605171956,35.094057277573185,68.23362112045288

in console lightbulb

20:47:31 MQT: stat/lamptv/RESULT = {“POWER”:“ON”,“Dimmer”:40,“Color”:“102,81,68,0”,“HSBColor”:“23,33,40”,“Channel”:[40,32,27,0]}
20:47:32 MQT: stat/lamptv/RESULT = {“POWER”:“ON”,“Dimmer”:27,“Color”:“35,35,68,0”,“HSBColor”:“240,49,27”,“Channel”:[14,14,27,0]}

if I tap the up down nothing happens but in in the events.log it appears as lamptv_color received on or off.

2020-02-17 20:39:47.252 [ome.event.ItemCommandEvent] - Item ‘lamptv_Color’ received command ON

2020-02-17 20:39:48.635 [ome.event.ItemCommandEvent] - Item ‘lamptv_Color’ received command OFF

2020-02-17 20:39:48.786 [ome.event.ItemCommandEvent] - Item ‘lamptv_Color’ received command OFF

2020-02-17 20:39:50.153 [ome.event.ItemCommandEvent] - Item ‘lamptv_Color’ received command ON

If I use the dimmer slider the brightness changes although not as bright as if I do it manually.

I think this means you’re using the wrong type. Instead of colorHSB try using colorRGB:

Type colorRGB : color "color" [ stateTopic="stat/light/STATE", commandTopic="cmnd/light/Color" ]