I was a little leery ordering -any- inverter. Researched a lot of info.  I mainly wanted one for the wireless router when electric goes out.  So I can stream movies, play games, read- whatever, on either my Kindle Fire HD or my Ipod touch.  Without having to hook up a tv and a dvd player etc...So, because I also experienced an outage, while the grandbaby was here, and it was HOT and HUMID...I also decided I needed one that I can also run a fan..at least 24 hours or LESS, using batteries and an inverter.  Beyond that, we would hook up the generator. Needed some system that I can do by myself, can't handle the generator by myself...yet.So, it arrived, quickly.  Hooked it up to a battery, plugged in the router, and all day (over 8 hours) I played games online, read news etc.  Now, I know many say that for 'electronics' you should use a pure sine wave inverter.  This one worked just fine.  But because of previous reviews, I did also order a pure sine wave, but it isn't here yet.This inverter did not spark, did not get hot, did not make noise, and only once did the fan come on, and that was at start up and went right back out.  Now I realize the router I'm talking about, is a small amp pulling router...yours may be different.  I also have another router, that requires more 'pull'...I have cable and DSL broadband.  I plan on mostly using the DSL as backup when the cable/electricity is out...Seems to be working fine.I have other ways of lighting/heating/cooking etc..so I really only wanted this for the router and a fan (if needed in the summer).I have only used it once and that was a 'test', a day long 'test'...pleased with it so far.  And it was a good price!Now, I have peace of mind in an outage, and can hook up  by myself with no assistance...Used to, people hated when the phone lines were down, then it was the t.v...now it's the internet...Now, I don't have to be without t.v., and internet...and with a cell phone..don't have to be without a phone, either. I still have an old fashioned plug in phone, because even when the elec is out, the phone line still has just enough for the phone to work.  Not the cordless ones though...!