Newbee Needs some help - HPS Light heating room to 88 degrees

[malinjj]

Hi All..

This is my first grow. I bought a used HPS light on "cheapbay" and it came with bulbs. I don't know what watt they are though. Well I'm using a 10' x 13" room and the 1 light gets the room to 88-92 degrees and my DWC is in the mid 80's. Are these lights suppose to get this hot or did I buy a POS?

Thanks in advance...

Joe

 

[diablo69]

what is the wattage on the ballast? there should be markings on the bulbs but new bulbs would be a good idea...you should have fresh air in and good venting to get the heat down.
You'll soon find out that going "cheap" can be very costly.

 

[malinjj]

The ballast is for 1000W MH. I just changed it to a 250W MH and the heat dropped big time. It also looks just as bright as the other one. Now I have a new problem with this setup. It doesn't work with HPS bulbs.

Today is day 80 in veg 18/6. I want to switch over to 12/12 but can I use the MH bulb? Do I need a new light system?

 

[JJ Bones]

You put a 250W bulb into the fixture or dimmed it down?

Do you have an electronic ballast or magnetic?

How are you ventilating your room?

 

[diablo69]

How big is the room?
How is it ventilated and air supply?
There's a lot of info. on this site for building a room and everything else you need to know.

You CAN use MH to flower but HPS is best. You should be almost finished BOTH veg and flower in 80 days.

 

[Fuzzy Duck]

The larger the wattage of the bulb the more heat it puts out.

Also for some reason MH generate more heat than a HPS of equal size.

I'm sure they is some techincal stuff to explain...


I would also look at your ventilation/extraction fan/inline etc to see if its suitable for the job !

 

[malinjj]

The room is 10' x 13', it's a spare bedroom.

Venting is a open window and a room fan.

I put a 250W bulb in the 1000W ballast. I don't know what kind it is but it's heavy and gets real hot.


Looks like I need to come up with a better venting setup. Also the 250W bulb dropped the temp to normal room temps 78 degrees.

 

[Fuzzy Duck]

The room is 10' x 13', it's a spare bedroom.

Venting is a open window and a room fan.

You may need a 8" or 10" inline extraction fan to suitable vent a room that size either that i would look at air cooled reflectors/hoods.

At the end of the day you need to vent the warm/hot air out side of the grow area to help maintain temps & a carbon filter might be a good suggestion to keep odours low.

You will have to look into air intake also either by a passive means or active intake fan for constant fresh air exchange.

I put a 250W bulb in the 1000W ballast. I don't know what kind it is but it's heavy and gets real hot.


Looks like I need to come up with a better venting setup. Also the 250W bulb dropped the temp to normal room temps 78 degrees.

I hope you not using a single bulb to light a room that ?

 

[malinjj]

Well today my ballast took a dump, the room temp dropped to 67. So that tells me the lights were the problem.

At the moment I have 4 plants growing "Northern Light x Big Bud, WW, Cheese, and Afgan Kush". I just took 4 clones from each of them last night.

I want to redo my room and could really use any suggestions I can get. I'd really like a setup like this
https://www.--------.org/hydroponics-aeroponics/6592-get-harvest-every-2-weeks.html

What light should I get? I also run a combo DWC/Drip setup. Any help would be greatly appreciated.

Joe "Nubee"

 

[Pirate Farmer]

Never ever put a smaller wattage bulb in a higher wattage ballast.
That aint safe

 

[malinjj]

Never ever put a smaller wattage bulb in a higher wattage ballast.
That aint safe

Yea found that out the hard way... lol..

I bought out a retired grower and picked up 3 600W hoods and 2 600W ballasts, 2- 3x3 EBB tubs, 1- 2x4 tub, PLUS 3 real can fans, and a ton of other stuff.

So I made a 2' muffler, my question is should I put the muffler on the intake or out? Should I mount it directly to the light or should I mount it away from the light?

Thanks to everyone !!!!!

Joe

 

[JJ Bones]

Typically mufflers are best placed directly on the fan.