Thank you for your answer.
I drew the contours of the tent and lamps with proportion and it does not look good. Two lamps are intended for an area of 2x 0.36m2 = 0.72m2, and the tent has an area of 0.81m2 - which means that it is too large at the beginning.
I have to rethink the purchase of a tent, the problem is that there is no available rectangular shape 60x120x200 cm2 in my country, which would probably be the best for two lamps.
It is actually possible to buy such a tent, but with a height of 180cm, and I wanted a higher one - 200cm.