high-voltage vs high-powered

high-voltage and high-powered both are adjectives.

Word	Noun	Adjective	Verb	Adverb
high-voltage	No	Yes	No	No
high-powered	No	Yes	No	No

As adjectives, high-voltage and high-powered are synonyms defined as:

Other synonyms of high-voltage include high-energy, high-octane, high-power.

high-voltage (adjective)	high-powered (adjective)
vigorously energetic or forceful	vigorously energetic or forceful
operating on or powered by a high voltage	(used of microscopes) capable of a high degree of magnification