Hi,
I am rather new to openHAB. Up to now, I use following bindings: avmfritz, hue, nuki, bosesoundtouch, and nest.
In principle, the hue binding works as expected. I am able to switch bulbs on, off, change colors, etc.
But when bulbs have a brightness of 1 (or 0) (the night mode), they are shown as off.
When I switch on one bulb via the official Hue App (Android), or Hue Essentials (Android) and the brightness is 1, nothing shows up in the logs. When switching on and off with a higher brightness, everything works as expected.
I am not sure if it is a bug or a feature 
Can someone confirm this behavior? Or tell me what to do?
Thx
Bjoern
System:
binding-hue - 2.3.0
openHAB 2.3.0 Release Build
Hue bridge JSON response for the bulb that is shown as offline:
{
“state”: {
“on”: true,
“bri”: 1,
“alert”: “none”,
“mode”: “homeautomation”,
“reachable”: true
},
“swupdate”: {
“state”: “noupdates”,
“lastinstall”: null
},
“type”: “Dimmable light”,
“name”: “Flur”,
“modelid”: “LWB010”,
“manufacturername”: “Philips”,
“productname”: “Hue white lamp”,
“capabilities”: {
“certified”: true,
“control”: {
“mindimlevel”: 5000,
“maxlumen”: 806
},
“streaming”: {
“renderer”: false,
“proxy”: false
}
},
“config”: {
“archetype”: “classicbulb”,
“function”: “functional”,
“direction”: “omnidirectional”
},
“uniqueid”: “xxx”,
“swversion”: “1.29.0_r21169”,
“swconfigid”: “xxx”,
“productid”: “Philips-LWB010-1-A19DLv4”
}
Changing the brightness from 1 to 50 (or so)
2018-11-12 21:15:48.220 [vent.ItemStateChangedEvent] - Flur_Decke_Toggle changed from OFF to ON
Changing back to 1
2018-11-12 21:16:45.419 [vent.ItemStateChangedEvent] - Flur_Decke_Toggle changed from ON to OFF
The example item:
Switch Flur_Decke_Toggle “on/off” (Licht_Alle_Toggle) { channel=“hue:0100:xx:2:brightness” }