I have a 18 inch poulan electric that I use around the house. It seems to have good power and I've cut down a tree with it that was about a foot diameter. It is definitely LOUD - kinda a loud high pitch whine that hurts my ears more than a gas model. Ear protection is a must. Can't remember what I paid for it but I think is was pretty cheap.
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If it is a poulan 400E 400ES I did a chain on one of those the other day and it was very impressive to me. Says 4hp on the side and reminds me of a 0-49cc gas chainsaw (if you was running 3/8LP chain on one).