A lightning protection device having a grounded Franklin rod and a conductive device attached to the rod and defining a predetermined overall shape of a predetermined size therearound. The lightning protection device is particularly devised to limit the amount of corona discharges under the ambient ground fields associated with lightning storms while the upward leader inception requirements remain unchanged during the descent of a lightning leader. The lightning protection device has a corona inception voltage that is substantially insensitive to contamination from pollution, insects, vermin or water droplets.