The Tesla tower provides powerful defensive buffs when your base is under attack; it can also be upgraded to increase its combat capability further. 

Here are some tips about the Tesla Tower:
-The Tesla tower will attack enemy forces when your base is under attack.
-The Tesla tower deals direct damage to enemy forces.
-The Tesla tower weakens the attack and defense attributes of enemy forces.
-Tesla tower consumes fuel to operate. Upgrade the Tesla power generators to increase fuel consumption efficiency.
-When fuel is insufficient, the Tesla tower deactivates and no longer participates in base defense battles. Make sure the Tesla tower is fueled when expecting attacks on your base.
-You can manually turn the Tesla tower on/off. When it is turned off, it will not attack or consume fuel.
-While the Tesla tower is active in all base defense battles against enemy players, it will not affect PVE battles such as rebel attacks, dead rising events, etc.