TQYF Advance pre-discharge lightning rod 1.with high quality 2.Stainless steel material 3.Model Number: TQYF-3.3 TQYF ... would be rapidly aug –mented before thunder & lightning, the potenial difference between exciter and reactor is abour equivalent to electric potential ... earth.Product characteristic1,No need maintenance,non-electronic,long life;2,No electronic system,it would not be damaged because of ...