Overwatered or underwatered?

Def underwatered,i see some dots on the leafs,maybe im wrong,but check if you have some bugs aswell! hashy answer is perfect ✌️🍀

Hashy's answer is great, I'd also bump your RH up a bit. 50-60% lighting is hard to tell but looks under-watered to me, could be wrong, lots of different stresses like heat, light, water, PH, nutes. A tip on watering, if you grow in a medium and its dry fertilizer like Gaia Green that uses lots of whole items like manure and rock dusts, don't water till you have runoff. That's leaching out the nutrients, just water till its wet. If you use liquid nutrients like AN or general hydroponics. water till there is runoff and do your EC/PPm testing to ensure its in the correct range.

When you water you should water until you get run off coming out the bottom, then wait till top inch of soil has dried before watering again. Your temps are also a bit low. Ideal to get around 26c during lights on. It's hard to judge at times if it's over or under watering. Check your soil now and see how dry it is. If dry water until you get run off. Good luck.