I dont pay attention to any of BS sells crap stuff like that.I detest "peak HP"
particularly on corded equipment, it's basically saying "while it's rapidly slowing down we very briefly saw 4HP but at 13A you'll be lucky to get 1.5HP continuous"
(not a dig on op here - I see that on a lot of my own equipment as well, we all (hopefully) just know not to pay it any attention)
To me it was a corded saw I wanted for cheap so I bought it.
I dont care if it said peak 1/2hp or 1000hp.
Works as intended with 18" bar bar. Me I would prob put a 16" on it by choice because I like that. But I will never wear it out. Just barn use if batt saw dont get used.
Prefer to run 16" on the echo 50cc too. But came with stinking 18". So someday it will get one.