Lighting i need help on MH/HPS bulbs,please and thank you

[marvin1212]

Right now my light is Hanging 17 inches from top of plant,my electronic ballast brand is Black line from amazon,dimming levels are at 600w,750w,1000w,super lumens,I currently have it on super lumens,my current temp is 77,humidity at 35%
Ok so wen I was reading lumens say 1000w mh is about 80,000 lumens divide. The by my 36 cubic feet that's 2222 lumens per cubic foot,and when hps bulb is 140,000? That's 3888 lumens per cubic foot,I also have a Thunder brand 1000w dimmable system,dimming levels at 400w,600w,1000w,1100w,keep note I am not using this rite now,but hypothetically if I had 2 1000w mh of 80,000lumens per bulb that 160,000 that's 4444 lumens per cubic foot,and hps cubic foot would be 6666 lumens per cubic foot.

 

[SiriusB]

Hi, Marvin
What are your dimming points? 400/600/1000, or 500/750/1000..
I use a 1K HPS (GA6 is right about the bulb choice) that I keep at 750 watts, for a 4x4 area of my flower tent. I've tried running at 1000 watts, but it just isn't worth the heat issues, for me.
In Summer, I use LED panels in place of the HPS, for heat reasons.
In your case, I wouldn't worry too much about PAR/Lumens, etc, as you will have adequate light with the dimmable 1K setup.
As for Kelvin/light temp, here's my 2 pennies...
Some growers run autos under Metal Halide (MH) bulbs throughout their grow. Its more of a blue light, and best for vegetative growth, according to the science behind it.
I use MH for veg only, and switch to High Pressure Sodium (HPS) bulbs for flowering. A red spectrum light, that the scientists say promotes flowering and "fruiting"... Mmmmm Buds....
My flowering tent (4x8) has 600 (real watts, 900 spec) LED on one side, and the HPS on the other. My veg tent has a 1K MH, running at 750watts.
The Eye Hortilux is a great bulb. I have one in the flower tent right now, and it is head and heels above the cheaper Sylvania bulbs I've used. You'll not go wrong by purchasing one
Best to you, and I hope you'll put up a journal when you have things sorted
:Sharing One:

Lets say i do stagger grows, example i start a new set of plants every 4 weeks. This way i can have a consistent harvest cycle. That being said the timing of the MH to HPS switch obviously wont work because the new seedlings need MH while the 4-5 week old need HPS. What shall i do if im growing in same area (height will be controlled by hydraulic plant stands i can raise and lower this way i never have to mess with light again and older plants that are taller stay the same while smaller ones are lifted up to appropriate height and slowly moving down)? Thanks

 

[Waximus]

I've done a couple grows where I had a 600 MH on one side, and a 750 HPS on the other If we're talking autos, you might consider using MH as primary and add a few red CFLs or T5s to the mix.

 

[SiriusB]

I've done a couple grows where I had a 600 MH on one side, and a 750 HPS on the other If we're talking autos, you might consider using MH as primary and add a few red CFLs or T5s to the mix.

Awesome will do. Thanks

 

[Jtsmoker]

Just got to day MH 1000 bulb get these the best bulbs are DE

 

[Jtsmoker]

 

[Jtsmoker]

For veg.

 

[Jtsmoker]

 

[Jtsmoker]

 

[Jtsmoker]

This bulb for bloom HPS D/E