You're going to waste a lot of money if you don't listen to those here who are trying to help you. I think you may be overlooking the fact that most of us have made the same mistake you are about to make and we are trying to help prevent you from doing the same.
I don’t know what it is about you that makes me trust your judgement, but I just purchased a light based on your recommendation in another post: Yueme 1500W LED Grow Light Full Spectrum with On Off Switch Grow Lamp for Greenhouse and Indoor Plant Flowering Growing https://www.amazon.com/dp/B0794WHD4M/ref=cm_sw_r_cp_api_i_oZDOEb018ET19
I just try to be as honest as possible when it comes to my experience (and lack of experience). Those lights are great to start with if you don't have the money for more efficient lights. I'm in the process of building better lights for my 4x4 but will be keeping one of those lights for my smaller tent and will probably give the other to a friend who is just getting started.
If you don’t mind, please tell me what you think about placing this light side by side with the light I already have:
Light spacing is as critical as the lights themselves! Use a lux meter to help build an even spread. Unless the lights are ceiling mounted way above the plants, you want careful placement to insure even lighting.
You'd be better off with two of the Yueme lights because you would get a more even spread of the same type of lighting over your plants. If you use the one you have with the Yueme then one size of your tent will be covered by the Yueme and the other will be covered by the other light..
Unfortunately, I am going to have 2 different lights for this grow because of poverty... What do you think about rotating my plants everyday for even light exposure? Check out my grow journal, and give me an estimate of how many grams I will harvest with these 2 different lights.
You could play around with rotating them or you could just leave them be and see how each side does under each light. I'm horrible at estimating my own yield, so it wouldn't make much sense for me to make a guess for yours. What I can say, though, is that I averaged about 2 ounces per plant off of the Yueme lights.
About 2 ounces per plant... how many plants??? I have 3 growing right now, so based on that, maybe 6 ounces?
Height recommendations for the Yueme lights?
I went with 20”-24” in veg and 18” in flower.