RQS Auto - SweetZZ, DoSiDos, Watermelon

Why guess??? There are several free light meter apps available for your phone. They are not calibrated or totally accurate but they can be pretty close. Measuring the light will then allow you to either adjust the light's output or change it's hanging height. Both sort of achieve similar results. With young plants I will turn down the power of my lights and lower them rather close to the plants. When they get bigger I will raise the lights and crank up the power intentionally trying to have good reflections from the sides of the tent to provide light to the sides of the plant. It is also helpful to look search for "daily light integral". Here is one sight to look at: https://www.ledtonic.com/blogs/guides/dli-daily-light-integral-chart-understand-your-plants-ppfd-photoperiod-requirements. The chart will help you balance light output versus how many hours a day you run the light.

I had the very same issue with as you. But if your temps are staying below 30c you are really OK. As the air temp doesn't always translate into canopy temp, especially if you have a fan moving around and blowing over your canopy. But, either way, a good dehumidifier you can't go wrong with cause once you have watering and your girls dialed in the RH your plants put out from leaf transpiration that alone will put out a good amount of moisture. I got a 20L meaco at its height it uses 280watts but that's when it's working full steam. The hotter the conditions and that play a big role and how well your dehumidifier works. The meaco 20L A energy rated has also won the which award and many others its a really great dehumidifier. It has timers, RH timers, once it reaches 3% less then what you have it set at it turns off and checks every 30mins and turns back on to bring your RH back down to 3% less then what you had it set at. They also have the 12L. I wouldn't waste my money on silly 1-5L you need one with a compressor in it. The noise is a little sound but hey. Once it reaches what you have it set at you have 30mins to get asleep lol. There really is no hacks or any tricks you can apply. Yes, smart watering and other little things will have a small impact but you do need a dehumidifier if you wanna dial in your grow. Now, there is many of ppl who grow just fine bud in very hot humid countries outdoors, how do they do it? Well, simple really, they have all the air flow you'll ever need. So it is possibly to grow in high RH not recommended as too high a RH can trick your plant into feeling full and it'll stop drawing up fluids from the soil and then you get defs and don't know y. But if your temp is under 28-30c u really wouldn't worry about it too much now. But as your grows get bigger and the more she drinks the more moisture they'll put out. Feel free to DM regarding the Meaco dehumidifiers. It's made just for RH Good luck.