Light set up

Northlight® · Mar 17, 2018

Hello there.
I'm about to start my second grow, and I have a question for the experts here .
I have a 4x4x6,5 ft grow box.

After the disappointment in the first grow with only led light im opting to add an another HPS light.
My light is a:
Meizhi led 900w

And i want to add an another HPS air cooled light
A HPS 400w Sylvania hps groxpress.
Here is the link :
Grow Lamp Sylvania Grolux 400W - Veg and Flowering

With both light will be enough or too much for the 4x4 grow box?
I will put in 5 Super critical autoflowering plants

Bonsaiweed · Mar 17, 2018

Northlight® said:
Hello there.
I'm about to start my second grow, and I have a question for the experts here .
I have a 4x4x6,5 ft grow box.

After the disappointment in the first grow with only led light im opting to add an another HPS light.
My light is a:
Meizhi led 900w
Here is the link: eBay

And i want to add an another HPS air cooled light
A HPS 400w Sylvania hps groxpress.
Here is the link :
Grow Lamp Sylvania Grolux 400W - Veg and Flowering

With both light will be enough or too much for the 4x4 grow box?
I will put in 5 Super critical autoflowering plants

The lights will be at a good wattage. Not sure about the heat though.

I'm no expert, so I'm working off what I think. There are a lot of variables in this equation.

Northlight® · Mar 17, 2018

Oh well thanks for the reply Bonsaiweed.
I just finished the set up and turn all on.
1h of monitoring and all looks good.
I have good air circulation with the extraction fan + an oscillating fan.
The temperatures :
- air is at 23°C - 24°C
- canopy is at 25°C - 26°C
It's late here (03:20) time to go to take a nap

.
I'll post some updates and pictures when I wake up.

Bonsaiweed · Mar 17, 2018

We'll check in when we get the chance.

I'm sure more people will bounce on, and give their opinion.

:ciao:

Northlight® · Mar 17, 2018

Like i promised...some photos of the whole thing

IMG_20180318_033313.jpg

Northlight®
Mar 17, 2018

Air temperature and moisture

IMG_20180318_033322.jpg

Northlight®
Mar 17, 2018

Canopy temperature and moisture

IMG_20180318_033340.jpg

Northlight®
Mar 17, 2018

Extraction fan with filter

IMG_20180318_033354.jpg

Northlight®
Mar 17, 2018

Air cooled light

IMG_20180318_033401.jpg

Northlight®
Mar 17, 2018

LED & HPS