Ion Accu-Accelerator is a technology that can be researched at the Research Center in Tech Level 3. It costs 350 Carbon and 150 Nova, and gives Laser Turrets (the Light Turret and its upgrades) +225% damage. They also do 50% more damage against Ships.
This is an important upgrade if the player uses Turrets for defense, as unupgraded Turrets will have a hard time taking down Mechs and other units with high Hit Points. The technology will make the player's Turrets remarkably effective.
"By concentrating the firepower of your Turrets, this technology grants them a significant bonus to their damage rating, and makes them especially effective against hostile Ships."