The weapon fires a beam similar to a strobe light that affects the target’s eyesight, making it more difficult for them to aim at night. During testing, volunteers reportedly used rifles and guns to shoot targets that were protected by the weapon. The volunteers reported having trouble aiming because they couldn’t see.

Additionally, about half of the volunteers said they felt dizzy, nauseous and disoriented. About 20 percent of the volunteers reported experiencing hallucinations.