high-powered vs high-voltage

high-powered and high-voltage both are adjectives.

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

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

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

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