This works:

Dim myRange As Range

Set myRange = Worksheets("Collection").Range("H2:H4")

But the change below doesn't work for some reason and presents an error:

Dim refColumn As String
Dim myRange As Range

refColumn = "H"

Set myRange = Worksheets("Collection").Range(refColumn & "2:" &
refColumn & "4")


What have I done wrong?

Thanks in advance.