What light to get, 600w or 1kw HPS?

First of all, i'm located in the south east US, temps here during winter average high 20s to mid 30s at night, and mid 40s to 50s during the day. Summers variate alot, but i haven't had the growroom in the summer, so i'm not sure how well the floor vent would work with a HID light during the summer.

Whats going to be installed this weekend.will be a 6in 250cfm fan that exhausts air from the top of the room into the attic. The exhaust will be through a DIY carbon filter (Not sure if it will even provide odor control, See below). Then air will travel through 250cfm fan. And finally the air will exit the ducting through another filter and into the attic. I have vent into the grow room floor that is open to under my house. There is usually cool dry air under there, as you will be able to tell in the pics of the thermo i'm using. There will also be cracks for air from the rest of the house to enter the grow room.

2x 23.8" x 20.5" x .2" carbon pre-filter from lowes
6in aluminum ' T '
2' wide chicken wire
2x6" aluminum caps.

Run a loop of the chicken wire around the ends of the ' T ', putting caps in each. Then wrap the carbon filter around the chicken wire.

Given these conditions, would anyone have any advice as to which size light i should go with, or start with better ventilation, or maybe even odor control. I believe i'm fixing to have some reeking shit on my hands, and dont wanna end up blowing it on smell. I'd reek out my house and keep everyone out for 2 more months if needed, lol.

600w most likely. You should post some pictures of your setup.

Currently these are the only 3 pics i have that have anything to do with the overall rig. Basically a false wall in a walk-in closet. Giving me a total grow floorspace of 30 square feet. I have 8 foot ceiling height.

View attachment 2486548

I recently picked up a solis tek matrix, 3 ballast in 1. just screw in the lamp of your choice and off you go.

1000w dimmable, that way you have plenty of light for your space but can turn it down in case heat becomes an issue.

tallen said:

1000w dimmable, that way you have plenty of light for your space but can turn it down in case heat becomes an issue.

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yep i agree here. make sure you purchase a couple of 600w bulbs to go in it in case you need to dim it down. a 1000w bulb dimmed down to 600w is not great for lighting. they are made to be run at specific wattage and you should never exceed or go below what the rating of the bulb is.

if you go above your looking at blowing up the bulb and possibly starting a fire. going below is just a waste of electricity. a 600w bulb being run at 600w will produce more light than a 1000w bulb being run at 600w.

If your only growing to provide yourself with a personal stash.. then get the 600.. even though I love my 1000w hps, you dont need that much light.

Cant have too much light, more light = more yield. If you got it, go with the 1000