Rapid knockdown, residual kill. 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. Indoors, in attics and other places where nests are built, and outdoors on wasp, bee, hornet and yellow jacket nests. Dielectric breakdown strength of 40.1 KV. Sure GRIP packaging.