The setting of this OID determines the level of event that will
trigger the check-log light on the EMS. This is not available on the EMU2.
lightDisabled (1) disables the check-log light.
lightOnInformational (2) lights check-log for any event of
informational severity or above.
lightOnWarning (3) lights check-log for any event of
warning severity or above.
lightOnSevere (4) lights check-log for any event of severe severity.