Looking for a movie i remember, but can't find
Solved by Appropriate_Spray_83, Shadows on the Wall (2015)
I think it was a b-movie, part of my brain screams it was V/H/S short, or a Syfy channel movie, but i've not found anything that matches.
Premise is a signal is sent in to space, it keeps going, out of the known galaxy and in to deep space.
I remember a good portion being set in a brick building, maybe an old warehouse?
Eventually strange things happen, people get smacked, and aliens/demons can only be seen with light, i think was a specific spectrum of light?
There's a scene where two of the aliens/demons get vaporised by being exposed to too many of the lights at once, and the third one just starts breaking the lights.
Near the end of the movie the cast find they can't turn off the signal.
The aliens/demons eventually say something along the lines of "Hey, we don't want to be here, and things waaay worse then us are comming. We will take the computer with us, and draw them away."
Been trying to find this movie again for at least 6 years, any help would be appreciated!