Hi all Have recently finished an installation where we used internal 360? PIRs and External WP PIRs. After recent storms some of the PIRs both internal and external have not switched off the groups associated with them. I can say it is the group associated with the PIRs as they switch a different group address from the light switches. The internal PIRs are set to switch the lighting on at 20% for nightime low level lighting in hallways. The storms have contined a fair amout of lightning. Has anyone experienced a similar problem, or have a solution. Thanks Brett