For those with 1.4
I setup a test HassOS instance and used the 1.4 Z-Wave integration to add the device. It is detected as Multilevel Tunable Color Light, but it seems the Home Assistant is unable to detect the type to create the correct entity. I stopped the integration and then edited the zwcfg_****.xml to change the type to Multilevel Power Switch and specific to 1. Then I restarted the zwave integration and the light entity was created.
So this:
<Node id="7" name="" location="" basic="4" generic="17" specific="2" roletype="5" devicetype="1536" nodetype="0" type="Multilevel Tunable Color Light" listening="true" frequentListening="false" beaming="true" routing="true" max_baud_rate="40000" version="4" query_stage="Complete">
became this:
<Node id="7" name="" location="" basic="4" generic="17" specific="1" roletype="5" devicetype="1536" nodetype="0" type="Multilevel Power Switch" listening="true" frequentListening="false" beaming="true" routing="true" max_baud_rate="40000" version="4" query_stage="Complete">