Transformers Bumblebee Energon Igniters power Series Bumblebee. Energon is the lifeblood of Transformers robots. Now you too can harness the Transformers energy source with Energon Igniters figures. This Bumblebee Energon Igniters Power Series figure transforms between robot and car modes in 6 steps. This Bumblebee figure stands approximately 5 inches high.