Champion Sprayon® Wasp, Bee and Hornet Killer reaches nests up to 20 feet above the ground, letting you kill wasps, bees, hornets and yellow jackets from a distance. For best results, soak the nests with the spray in the evening, after all the insects have returned. This product has a dielectric breakdown voltage of 37.8 kv (as measured by ASTM test method D-877-87); it will resist electrical current up to 37,800 volts. Wasp, bee and hornet insecticide Rapid knockdown and kill Reaches nests up to 20 feet above ground Dielectric strength of 37.8 KV Active: Synthetic pyrethroid, Tetramethrin