Indoor landrace sativa

Wifi alarm sensor.
If u have no internets there....an old cell phone cheap plan?

it doesn't hurt to give appliances 20-30min to cool down, every 24hrs if i remember i try to give everything a chance to cool down, this should help the longevity, and also mitigate a overheat/fire issue, like @Hudson2384 said, if you're worried just buy another fan, worth it just for the piece of mind, and you'll have this for a spare if the other one dies, but as long as you have a name brand or something you trust, if it breaks, it assume there is fail safes on most UL, ETL rated stuff. I feel you though, I'm pretty iffy about by appliances from the internet.

But most of my fans, are bought online. I mean if you really wanted to you could mount it in a "homemade" oven, toss it in a bbq or something, and have the ducting in one side, and out the other, with the fan itself contained in a fireproof container lol probably should stop smoking.

Personally I'm a first timer using a 600w MH, and gonna be using 1000w, 600w, I've bought a big fire extinguisher for outside and a small one for inside the room, outside the tent and i put a fire alarm near the exhaust exit outside, had a few false alarms and not sure if the speed of the fan would push the smoke to quick, which makes me think i should test that, but i plan to also add fire alarm inside and outside the tent i guess. Better safe then sorry, but i was thinking fires would be if a bulb breaks the 1000w is magnetic I've also bought surge/GFI Power bars, that might help, Is your fan ETL or UL marked? if so check against their listings see if its real, if it is, you're probably good.

Wanted to mention since its there, you have a lot of slack in your hose, maybe you cant mount the fan?and go straight across it seems like you could in the picture and saves so much floor space u got pretty high ceilings I have been using eye bolts, into the roof, minimal damage, easy to putty later and was using para cord, now i got carabiner lol and Vivosun rope pulleys can go climbing lol but every 30Degree bend you lose 20% efficiency and the extra distance is costing you efficiency as well "The sharper the bend, the harsher the efficiency reduction; a 30° bend cuts the amount of airflow by 20% while a 90° bend diminishes airflow by 60%! Smoothing out any wrinkles can also improve fan performance and airflow." https://www.acinfinity.com/blog/how-to-calculate-required-cfm-for-a-grow-tent/

gl Stay safe

You can re-veg her. Takes her long to flower. Revenging is no issue.

Pre-flowered buds will turn to leave and later small useless branches. These will need to be trim off.

Good luck

honestly, I wouldn't advise it most plants seem to hermie when the light schedule is switched after being flipped into flower, this will cause stress.

Heya!

If you have strong genetics it shouldn't hermie and should go back to the veg state. Last time I re-vegged a plant that was already showing pistils it took about 2-3 weeks to start showing solid growth again. I don't think this will be the case with yours as you're only a week in.

Cheers and good luck!