Lantern Archon light rays against light vulnerable creatures such as shadows

[Maradona]

Does Lantern Archon light rays works completly against light vulnerable creatures such as shadows?

Does the ray of a lantern archon can overcome de incorporeal resistence?

Or it does half damage? Where can i find this answers?

Including that, a great number of incorporeal creatures suffers from light exposure.

(Sorry for any mispelling)