Once the LED is successfully removed, this procedure can be performed backward to install the replacement board. Replacement boards will have to be the same size LED to fit properly. Compatible LED boards for the PO fixture include ZD1LEDULKIT (ZD) and 1LEDULKIT (standard). Compatible LED boards for the MO fixture include ZDCKITM(COLOR), ZD1LEDULKIT-ZD3LEDULKIT (ZD), ZD3LEDT (Wild Life), and 1LEDULKIT-3LEDULKIT (standard).