The sole other assembly necessary for the Flowtron was inserting the octanol cartridge, which slides conveniently to the cartridge holder on the bottom with the unit. The cartridge lasts about 30 days and charges about $fifteen for your substitute a few-pack. In the course of my tests, I checked https://flowtron-bug-zapper-bulb40493.pointblog.net/5-easy-facts-about-outdoor-bug-zapper-described-70010464