Hi there,
I am Ahmed an electrical engineer,
basically Zwave lamp module uses to control it's load (which should be incandescent lamp in your case) remotaly , but we can tweak it a bit to make work with other types of lamp but we are limited with the power rating for each load.
contact me over chat to discuss more details and don't forget to send me the Zwave module product id and the new LED COB info (the one you aim to use).