Public Enum not accessible in class

[trisuglow]

I've declared an Enum in a module called Globals as follows:

Public Enum PowerSupplies As Integer
        Remote
        Panel5V
        Panel24V
    End Enum

I'm trying to use this in a property in a public class (called 'CANN' as follows:

Public Property PowerSupply() As PowerSupplies
        Get
 
            Return mPowerSupply
        End Get
        Set(ByVal PowerSupply As PowerSupplies)
            mPowerSupply = PowerSupply
        End Set
 
    End Property

I get an error - "'PowerSupply cannot expose a Friend type outside of the public class 'CANN'".

Does anyone have any idea why this doesn't work for me? If I declare the Enum inside the class it's fine, but it doesn't seem to work with it declared (even as Public) in another module.