Data types in ETS

When exporting all group adress I get some with data type "DPT-1" is this a valid data type. Several is "DPT-1-1" and this is a switch why is some showing only "DPT-1"

<GroupAddress Name="Goodnight house" Address="1/0/30" DPTs="DPT-1" />

I'am using the latest ETS version.