Stroller

Hi David, I know you have said "about 10 Amps" and I know from our previous discussions roughly how your kit and Obsy are laid out but to get the best 'bang for your buck' it is best to 'size' the UPS based on the exact power usage of all of your kit. UPS use two ratings, VA (Volt-Amperes) and Watts. See the simple 'cartoon' explanation at this sight (other sights are available ) http://upsselector.eaton.com/Load You will see on that same page a calculator that you can use once you know the details of each piece of equipment you want to run off of the UPS. As all your kit is down in your Obsy, you might want to print the UPS 'sizing' sheet out from this link https://powerquality.eaton.com/thoughtleadership/choosing-ups/size-a-ups.asp to assist taking notes whilst in there and then go back to the house and enter all that in online or do the calcs yourself on the paper. Are you only wanting to run the kit in the Obsy on the UPS and not your 'main' PC back in the house as well? As Lonestar70 said, "A lot depends on how much run time you require in the event of a power cut" as this will also be one of the main factors that will affect the cost of the UPS. Hope that helps for now. Rgds, Chris.