My lights are 240wt x two in a 4x4ft and the plants are only under them for the last four weeks of veg up till then they are under a 24wt t5 or they are getting a little more as they grow when they get the 240wt they are not getting any more than 50% power so that works out at 120wts over two fully vegging plants 8sq ft = 60wts over one plant is half of what you need for your flower period and they will grow fine under that you will need to allow for the flower period when your light is a shorter time and you can increase your intensity to compensate for the shorter light period What do that model of light use wattage wise You will need to be getting 30wts per square foot or something close for your flower so for a 4x4ft 16sq foot is 480wts I think you will be able to get away with 400wts maybe but you are better staying in the first option for your flower but the young plants are not going to be needing that kind of intensity you can grow your seedlings in your window sill a indirect light will grow a seedling that said it will grow under the high level and grow okay and you will have the plants reacting to the light and they will tell you how happy they are they will soon tell you when they are not also good luck with your garden peace
That's what I'm wondering what's more important.
I like to protect trichomes and REDUCE the light a bit at the end of flower.
The temperature is a little bit low but it’s not too bad that you is better off more 80 /81 humidity is good for your veg period at 72% I cannot really control my humidity completely through my garden I am normally between 50/70% depending on what stage of my plants are and how the climate is outside of my tent it is not a concern for me as long as you have a good air flow in your garden that will help with your risk of getting any problem with moisture in your garden and that is a must have you will probably have to get a heater in your garden and then you will get your temperature up on point to be honest with you my plants are sometimes in 25 degrees and they have always been fine but they will prefer it more eighty/middle eighties is good for late veg and up to late flower last few weeks and then I will try to get it to 78 ish and humidity level is a little lower but it is very hard to control for me good airflow is essential that I will be able to stop any moisture in your garden and you know what you can get from moisture not good things. Again I have only been telling you how i do things not giving advice on how to grow your plants it might be a help to you but you are the gardener and you have to choose to grow your plants properly or not. Anyone can grow it but grow it properly that’s the only way you will spend the same time with your plants cycle so you have to get the best results you can. Light air water and temperature is your basics and you are going to be controlling your environment And that’s hard work to get to the optimal level Good luck
peace 
As long as they're not getting below 65f they'll be fine. Sometimes, I use clear domes and mist the insides to raise the humidity around the seedlings to tropical levels.
The same as it is a experimental thing of my last garden and this one not sure what week is going to be a better option but they have been in a reduced level of 80% power since end of the week six and they have had 90% for weeks four to six and they have had 80% for the first three weeks of flower i was wondering about maybe one more week of 90% for four weeks to week ending seven It’s all about gardening and growing good weed I’m looking at my garden now and my temperature is 73f and humidity is 53% is half way through the day hours wise and that’s not perfect really but it will be kept in a 80f temperature for early and middle of flower up to high eighties in a lot of the time And my humidity in my veg period is a 40/50% sometimes high end of fourty is again not ideal but it has been successful for all my gardens so far optimal conditions are going to be getting the best results without any doubt but they will still grow out of the ranges just try to get it as near as possible and that’s me about done
good luck with your garden peace 
I am venting out my basement window.
Good luck fighting off Fungus Gnats, plenty of people have threads on getting rid of them.
If the problem persists I will definitely consider something stronger.
I took out 2 inches of soil to be sure the gnats are gone.
My leaves got burnt from misting my plants with water/peroxide mix and having my lights dimmed to high and to close.
Peroxide works good for gnats if diluted properly.
The plant on the right I had to clip the leaves off from being burnt.
Mental note to self water magnifies the LEDS..lol
I can't dim my lights lower then 75% as that's what maintains my temp of 25c I'll probably get a small radiator heater next winter but it's already Feb.
So for now I'm hoping leaving my lights dimmed at 75% and raising them to 35 inches above the pots helps.
I'm going to stop misting my leaves to prevent magnification..
Gnats taken care of and lights raised bring on the next problem..
