This is what I use: http://www.amazon.com/gp/product/B003NVLWN2?psc=1&redirect=true&ref_=oh_aui_ detailpage_o00_s00 73, Jim N7US -----Original Message----- Greetings, Any suggestions appreciated on an effective electrical panel lightning protection device for my panel breaker box. Thanks and 73, Bob K3UL