1000 watts or more for 4x4 tent

Learnin · Jan 18, 2026

Hello all. I’m new to growing and I have a question. I have a king1000 grow light and also have a cheap 200 watt light that came with the grow tent. I am about to try hydro and will be growing in a 4x4 tent with 4 plants. Will the 1000 be enough or should I add the 200 watt one also ? Also with the 1000 should I be around 24” above canopy ? Thanks for any help

Phyto · Jan 18, 2026

Your King is essentially 100 watts, not 1000. Your 4x4 tent is 16 sq feet. Optimally you want 35 watts per sq. ft. So in a 4x4 tent you want around 550 watts. For veg, you can probably get away with the 200 watts light, “But in flower, you need power!”

JIMKSI64 · Jan 18, 2026

You can lower your light requirments if you do autos at an 18-6 schedule.
I ran 9 in a tent with a 400 watt panel. Easily average 48 DLI
for photos I run 700 in the 4x4.

Learnin · Jan 19, 2026

Gotcha. Will it help if I do both lights? Or would you get a better light?

amneziaHaze · Jan 19, 2026

Depends how much each light covers. But 300w would work as a minimum.and as a new grower I doubt you will fill the whole growbox full of flower soo it will work.

In a 3x3 300w would be amazing soo yours is close
If you got money spider will sell you 2x80 or 2x40watt bars you can put in corners

Learnin · Jan 19, 2026

Okay thank you all for the help.

addcultivated · Feb 26, 2026

Alright, I appreciate all of your assistance.

geometry dash

1000 watts or more for 4x4 tent

1000 watts or more for 4x4 tent

Learnin

Phyto

JIMKSI64

Learnin

amneziaHaze

Learnin

addcultivated

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