Listed dimensions are WRONG Turned unit "off" thinking I was turning it "on". Details of what happened below. Instructions from the quick installation guide on page 3 : STEP 1: Plug the UPS into a properly grounded outlet. After plugging the UPS into a wall outlet, press and hold the POWER BUTTON for one second to turn on the UPS (See Basic Operation Section). Notes : • The UPS will not turn on automatically in the presence of live utility power. --------------------------------------- Really? Notes say "UPS will not turn on automatically"? This is What actually happened below. I plugged it in and the unit turned itself on, as in, all the way on. The online icon was lit, but I was not sure because it says push on button and a beep will sound indicating it is on, this is on page 4 it says when turning the unit on it will beep once. So I pushed the button and it turned off with a beep. So I thought I "turned it on" because in the instructions it does not say the "online icon" will show indication the "unit is on". Second page of instructions same thing. Then down in a section called "optional installation" on the quick installation page 3 it does say something about the online icon indicated the unit is on. Really? Did I just turn this unit off? Thinking I turned it on? Seems so. In all the instructions on any page it says NOTHING about push "on" button and the "online icon" will show the unit is on "in the same sentence", it just says push on button and the unit will beep once. So when you plug it in, as I did, and it comes on all the way, like me you might not realize when you push the on button and it beeps you are actually "turning it off", because it beeps when turning off and turning on via the on button. Well upon further investigation etc, I realized the "online icon" indicated the unit is "ON" as that is kind of obvious it should says that when the unit is all the way on. I think most people will figure this out or with most units when you first plug it in maybe the unit does not turn itself on, actually on with the online icon lit like mine did??? If you buy one of these watch to see if, when initially plugged in, it comes on, or, goes all the way on with the online icon lit like mine did. I do wish the instruction where more clear and said: To turn unit on, Push/hold center on/off button, hear short beep and see the online icon come on confirming the unit is now "ON". all in once sentence just like that. Next: To turn unit off push/hold center on/off button here short beep and the online icon will go off confirming the unit is now "OFF" ---------------------------------------- Second gripe: Dimensions stated in the amazon description are WRONG as of august 2022 when I purchased my unit. Hopefully some one at TRIPP LITE will read this or an amazon person will see this and fix it. Amazon description says: Item Dimensions LxWxH 19.29 x 9 x 11 inches. Upon further research I found this is the unit "box" dimensions. Actual dimensions as stated in the PDF info page: UPS Power Module Dimensions (hwd, in.) 8 x 5.75 x 15.6 - this was confirmed by me with a tape measure. When I measured the actual unit I thought I was cheated and sent a smaller unit so I began checking. The box it came in, and, it did indeed say unit size: 8 x 5.75 x 15.6. also, box did show correct part number for what I ordered. Online research did confirm, yes, 8 x 5.75 x 15.6 are the actual unit dimensions. --- I clicked on the report incorrect product information link, nothing happens, no way to report this dimensional "disinformation". So off to a some what confusing and rocky start with this unit. Really hope things do not go "down hill" from here. I will report back later with updates if needed. Note: I have extensive IT and UPS experience. I have been using these things since the mid 1990's and have bought a lot of them, mostly APC brand. I have had them go bad quickly and others last literally for ever with many battery replacements. I am hoping to have a good experience with the Tripp lite brand. Aside from the confusing instructions I can not fault the unit at all so far. Though just unpacked it and plugged it in. ...