This unit can be used to easily upgrade the firmware of compatible DMX-effects & projectors. One or more DMX-effects can be upgraded simultaneously via their DMX-in/out connections. The included Windows software connects via USB to the firmware updater. Can also be used: As an easy 512channel DMX-controller to quickly test any DMX-projector. To set the DMX-addresses of our light effects/projectors that are remotely addressable. No external power adapter needed. ATTENTION: There are different FIRMWARE UPDATER models available. CHECK with us to know which model you need to update your projector !