What units are used in the stun grenade specifications, to describe its power?
Decibels and candelas. The M84 grenade on the photo emits 170–180 decibels and 6–8 million Candela within a 5-foot (1.5 m) radius. The loud blast causes temporary loss of hearing, and also loss of balance by disturbing the fluid in the ear. The flash makes vision impossible for approximately five seconds.