Deflector Shields are a miner rebellion shield that can be researched in the technology lab. They are resistant to projectile weapons. They have a 50% damage resistance to projectile weapons, that is, they take have damage from projectile type weapons.
The Deflector shield is the third and final shield that players research. Compared to the Spectral shield and Shockwave shields, it has the lowest shield strength, but is the lightest of the three.
As the name suggests, the shield is designed to protect ships from incoming projectiles, specifically fast-travelling and hard-hitting weapons like the Gladius and AP Drivers.
Due to the fact that projectiles in fleet combat are not as common as explosives and energy weapons, as well as the ever-present Metaphase shield being able to defend against all three weapon types and is stronger than Deflector shield V, the Deflector shield sees uncommon use.
However, this shield is very useful for attacking bases and when farming VEGA Fleets. Due to the fact that bases tend to use projectile weaponry in large numbers for long range defence, as well as high-level VEGA Fleets often bearing Gladius drivers. Because of this, the shield does see use outside of PvP.