Luma grenades, a type of grenade, functioned by emitting a powerful surge of light. Although their primary application was as flares or for the purpose of lighting up specific zones, they also proved useful in temporarily impairing the vision of nearby adversaries.
The effect of the luma blast was amplified at nighttime, and could be doubled against enemies equipped with night-vision goggles. This would leave them blinded for a minimum duration of one hour.
A similar outcome to that of a Luma grenade could also be produced by deploying a Lumablast Rocket.