Laser core
A laser core is a vital component of Transformer anatomy. If a Transformer's laser core is extinguished, the Transformer will cease functioning.
Fiction
Generation 1 cartoon continuity
Megatron sent Laserbeak to spy on the Autobot base to determine whether Optimus Prime's laser core was extinguished after he was badly damaged in a Decepticon attack. Divide and Conquer
Laser core and Spark
It's been heavily debated what role the laser core and the spark play within a Transformer. Some fans have speculated that the laser core may be some sort of housing unit for the spark. Others have speculated that it may be a separate entity. The Tech Specs for Mechatron say that he possesses an upgraded spark capture device which can rip the laser core out of any Transformer, seemingly confirming that the laser core is a housing unit.
