Laser Core - A reference to the life force of a Transformer. Also see Spark.
Laser Cycle - Reference to Generation 2 Transformers whose transformations were that of a motorcycle and whose weapons glowed via an LED light.
Laser Rod - Reference to a group of Generation 2 robots whose primary weapon was a sword that glowed via an LED light.
Liege Maximo - A mysterious Transformer responsible for the Generation 2 Decepticon forces. By his own admission he is quite ancient, predating Megatron.
Lithone - A world devoured by Unicron at the beginning of Transformers The Movie.