noun which may take the genitive case particle 'no'
electric; electrical
Used as a no-adjective to describe devices, systems, or methods that are electrically powered or operated, often in contrast to mechanical or manual types.
This car uses an electric power steering system.
Electric heating appliances are said to be safer than gas ones.
電気的 is a na-adjective meaning 'electrical' in a more abstract or scientific sense, whereas 電気式 is a no-adjective used for concrete types or systems.
Compound of 電気 (electricity) and 式 (type, style, method).