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SMA Sunny Boy 4000 US with DC DisconnectWrite a review

SMA Sunnyboy 4000US and 5000US by Brett Melwing
Date Added: December 10, 2009
SMA SunnyBoy models 4000 and 5000 US are the best i really love these models and they are guaranteed. SMA is well trusted and these inverters are great i have just installed to systems different jobs and if i had a choice i would use nothing but these. Really like the ease and really like the guarantee. rnDont so much agree for outdoor with the vents up there but they guarantee and have not had a problem yet. rnHave installed in Hurricane Zone locations and will see the result. I expect it to be just fine.
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