Thank y’all for the reply’s. I have watched that video a couple of times. The panel they used on the roof was a Newpowa compact panel. I was going to buy that one. And I watched the video that William Powell did when he did the comparison between the Renogy the HQST ,and New Powa. One of my concern is if I mount the new powa panel with the vhb tape and say the panel fells ,how do you remove it since the screws slash bolt that holds the panel to the brackets are hard to get to according to the man in the casita video ? Second question I have a Renogy wondere I bought last year new in box I was going to use it doesn’t have the read out on panel have to connect a blue tooth module to it and read it on my iPhone app . If I was to get a victory 10 amp controller is that how you read it as well ? Also on pulling the solar wires down the vent pipe in closet ,when connecting to charge wires going to battery so I use the same 10 gauge solar wires for that too ? Thanks for y’all help I’m excited about doing this to my casita , my goel is to buy a 100amp lithium battery and jus a simple hook up .I was going to do this last year when my lead acid battery failed and we were heading to Yellowstone I had a few people on the casita forum telling me I would have to get a dc to dc controller . I was not prepared to do that so I bought a nice Motobatt 110 amp battery for the time being . Any help would be appreciated. Thanks again.