There’s a button you can click to turn them on/off or you can schedule time in the app for them to automatically turn off. They do stay on however. The power drain has to be so small that I just leave them on and schedule them off when I know I won’t be driving. Here’s the ones I got Tesla Model 3 Model Y Neon Light... https://www.amazon.com/dp/B085C69755?ref=ppx_pop_mob_ap_share
Not sure if it's the same one but I found this on amazon https://www.amazon.com/Tesla-Model-Interior-Lights-Controller/dp/B085C69755/ref=sr_1_1?dchild=1&keywords=tesla+model+3&qid=1589003042&sr=8-1
Also, here's an installation video https://www.youtube.com/watch?v=XfRCHnInvmE