Overwrite max_mireds to 370 for ZS1000204-IN-DE-V1A02

I bought a Linkind bulb with the model name ZS1000204-IN-DE-V1A02 and registered it via z2m, which was recognized as Linkind ZL1000100-CCT-US-V1A02: https://www.zigbee2mqtt.io/devices/ZL1000100-CCT-US-V1A02.html

The main problem is that max_mireds should be 370 rather than 500, because at 370 the lamp has already reached the warmest level. In addition, but less important, the various effects do not differ, they all only flash at the same rate.

I have installed Home Assistant Supervised (2021.1.4), Mosquitto broker (5.1) and Zigbee2mqtt (1.17.1) are retrofitted as add-ons, the bulbs was integrated via MQTT Discovery.

The color-temp slider of the bulb has it max at 500 but only upto 370 has an effect (and jumps back to it in hassio (sometimes in z2m-tab expose), if I slide above it) and the developer-tools of hassio show me a max_mireds of 500.

Now I’ve tried to integrate the bulbs in hassio manually with the additions: min_mireds: 153 max_mireds: 370 If the bulbs was still integrated, the settings were ineffective even after a restart. If I removed the devices from the integration and switched off auto-discorery, the bulbs did not appear even after a restart. But that’s an other issue, which I ignore for now.

I then reversed that and took a closer look at the options of z2m (https://www.zigbee2mqtt.io/information/configuration.html). ‘device_options:’ was ineffective, especially since I don’t know how to bind the parameter to a model, it did not work anyway. ‘external_converters:’ despite the examples I did not understand at all how I could overwrite the max_mireds value with these. I even tried to modify the /zigbee2mqtt-1.17.1/node_modules/zigbee-herdsman-converters/devices.js within the container: extend: preset.hue.light_onoff_brightness_colortemp_color([153, 370]) But as soon I restarted the add-on, the setting was back to default.

What amazes me that /share/zigbee2mqtt/database.db apparently recognized the max value correctly (colorTempPhysicalMax":370):

{"id":7,"type":"Router","ieeeAddr":"0xec1bbdfffeb588bf","nwkAddr":6913,"manufId":4456,"manufName":"lk","powerSource":"Mains (single phase)","modelId":"ZBT-CCTLight-D0106","epList":[1,242],"endpoints":{"1":{"profId":260,"epId":1,"devId":268,"inClusterList":[0,3,4,5,6,8,768,2821,4096,64642],"outClusterList":[10,25],"clusters":{"genBasic":{"attributes":{"modelId":"ZBT-CCTLight-D0106","manufacturerName":"lk","powerSource":1,"zclVersion":3,"appVersion":1,"stackVersion":1,"hwVersion":1,"dateCode":"20190509-346","swBuildId":"2.2"}},"lightingColorCtrl":{"attributes":{"colorCapabilities":16,"colorTempPhysicalMin":153,"colorTempPhysicalMax":370,"startUpColorTemperature":65535,"colorTemperature":370}}},"binds":[],"configuredReportings":[],"meta":{}},"242":{"profId":41440,"epId":242,"devId":97,"inClusterList":[],"outClusterList":[33],"clusters":{},"binds":[],"configuredReportings":[],"meta":{}}},"appVersion":1,"stackVersion":1,"hwVersion":1,"dateCode":"20190509-346","swBuildId":"2.2","zclVersion":3,"interviewCompleted":true,"meta":{"configured":2},"lastSeen":1612722264454}

Is there a simple solution here?

Thanks and regards

[sjorge]

That would make syncing up different brands difficult.

setting 370 (neutral) preset on Hue, Innr, Ikea all produce mostly the same color to the eye. 250/370/454 are what the ikea puck remote sets, and what they call cool / neutral / warm, which is in range of a lot of bulbs. (At least with my mix of tested Hue E14, Tradfri GU10 WS, Tradfri E27 CWS, Innr E14, Inner E27, Osram E27, and Tint E27)

coolest and warmest are mapped to whatever the bulbs min/max is, those perhaps should be renamed to min and max.

[geigervibe]

thanks, I was not sure, these bulbs are offline now, could not check, if the range was correct. Thanks you confirmed it and thanks for the fix for the other bulb…