Top critical review
Does the job but has a loud buzzing sound.
1 November 2016
I have been using this UPS for the last few weeks and it has been working satisfactorily. But it makes an audible buzzing sound while it is in operation. The sound is loud enough to be an irritation. I also use a much bigger 1KVA APC UPS at home and it maintains pin drop silence while in operation.
On this UPS I have a wifi router and a cordless phone as loads.