Laser turrets that will turn on when enemies approach and turn off when they die.<br> Using flamethrower turrets, tanks and combinators

Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Laser turrets that will turn on when enemies approach and turn off when they die.<br> Using flamethrower turrets, tanks and combinators