Laser Control Station is available at rank 1. It grants access to Target Designator satellite which increases the damage dealt to affected units by 33%. At rank 3, Laser Station starts distributing stronger lasers to laser-armed units. A single upgrade is applied each 2 minutes. Red lasers are upgraded to Green, and Green lasers are upgraded to Blue. Any unit has the potential to reach Blue lasers at rank 3 if it stays alive for long enough. At rank 5, Laser Wavelength Intensifier upgrade becomes available at the Station, which applies a single upgrade unconditionally. This means that all units will come out with Green lasers by default, and units which had Blue lasers will get upgraded with Violet lasers - the most powerful one. Keep the Station alive to keep regular flow of more powerful lasers to your army.