Amazon Prime Deal • Katchy Indoor Insect Trap - Catcher & Killer for Mosquitos, Gnats, Moths, Fruit Flies - Non-Zapper Traps for Inside Your Home. This is our second year using it and all you do is change out the sticky pad inside when it gets full or whatever preference yours is! You turn on manual setting or automatic that does it automatically night. It has a black light and fan and draws the insects in! It’s a huge life saver living in the south! LTKxPrimeDay LTKSeasonal LTKFind