there’s no squished-bug mess to clean up (although there is often a light burning smell). And with the loud pop and flash of spark to confirm each kill, it’s also a whole lot of fun.

But what is this magical solution and how does it work to kill bed bugs? We take a closer look... CrossFire uses three active ingredients: Clothianidin, Metofluthrin and Piperonyl butoxide (PBO).

However, unlike fireflies, these bugs do not flash. Instead, they glow continuously, although they can control the light intensity. The light becomes brighter if they’re threatened or touched by ...