The Small Beacon is essentially Armor that is bought with 50 Starbux . It does everything the normal armor does except it cannot be upgraded and only protects the room with 5 Armor. This Beacon is best used on the Reactor and Fusion Reactor, this is because they need armor but not as much as other rooms.
See Armor For More Info
|Level||Armor||Building Cost||Ship Level Required|
Armor / Corridors