need help picking alternator

[knighty]

I ready to get a new alternator and have been looking at singer for my 01civic. What makes these alts so good and does anyone have experience with them as far as lifespan?

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[mylows10 5,000+ posts]

I'm one of mikes reps I can help with questions. I've got 4 of his alts. Have had them for over a year now. And works great. All of them. Lifetime labor warranty is a good start no cheap Chinese parts either

 

[knighty]

K want one...

 

[knighty]

What makes them different tho, internally? And are they efficient? I just wanna make sure it'll last a couple years.