Derived Column Expression

I'm building an SSIS package and I want to create a derived column with hard coded value. The column is a bit type and I want to set the default value as "0".

In SSIS, I click the Derived Column component, and right click > Edit

Name the colum somthing.
Select 'add as new column>' for the second option
The expression is (DT_l1)"0"

The type will fill automatically, or you might need to set it yourself. You can leave everything else blank.