>>2721571You can do what I do, temporary light socket wired to an extension cord, optional power socket timer so you don't have to turn it off and on yourself.
All you need is something to loop wire through, I use small screw in hooks but you could also use curtain hanger or furniture to hang off if you don't want to screw anything in.
For bulbs you want something facing downwards, high brightness (1500+ lumen) with high color temperature (4000+ K), ideally with small beam angle so light isn't wasted on sides.
I use Milio HELI 39W NW, cheap, 3900 lumen with 3 adjustable segments but they sell those in Czech Republic so it might be hard to get those.
>at 8C the chilis might not die, but they also won't grow outside anymoreMine survived late June freeze just covered in landscaping cloth with minimal damage, they are surprisingly resilient if you harden them off properly.