The thing is emitting light, that obvious since there is no shadow behind it which would be the case if this were reflecting light being shined toward it. The case doesn’t looked “polished” and “consumer ready” like a commercial flashlight would look. This implies that you probably don’t normally see the back parts of this thing meaning it’s some sort of insert or replacement plug type item. The vents around the "head" seem there for heat dissipation? It also seems battery powered?
Ok, so my guess is, a Heat Lamp insert for some type of portable commercial cooker/warmer?