jstone1633
Well-Known Member
Whats the average footprint of a 400 watt hps?
400 watt footprint
- Thread starter jstone1633
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jimmer6577
Well-Known Member
I have a 600 watt and it just covers a 4x4. I was told a 400 watt covers a 3x3 wich is a square meter. Good luck
jstone1633
Well-Known Member
I jus bought a 400 watt off craigslist. Whats the lifespan of a bulb and what brand would everyone recommend?
its best to get a new bulb every year. just make sure you get a bulb that fits your ballast. they have different size modules or whatever in them. most bulbs come with 18k to 24k hour lifespan i think. just check out bulbs over at htg supply or at your local hydro shop. im just getting into indoor growing myself so im not an expert on certain bulbs.
what company made the ballast? and did it come with a cooltube or hood or just a wing reflector.
what company made the ballast? and did it come with a cooltube or hood or just a wing reflector.
Figong
Well-Known Member
A 600W can handle 5x5 -barely- in veg, if you don't mind letting the growth slow a bit.. 4x4 is the max you'd take a 600W to at bloom, and a 400W would be 3x3.. you could go further depending on the type, but you may not like what results, and you would certainly not get what you'd expect yield-wise out of it.
Figong
Well-Known Member
Did you make sure the ballast works? Is it a switchable ballast for MH/HPS both?
jstone1633
Well-Known Member
Im not sure how to answer a lot of those questions. Its a viavolt from homedepot. It works though
Figong
Well-Known Member
Last I remember the Viavolt @ Home Depot is a T5 setup, and it has electronic ballast.
jstone1633
Well-Known Member
Na. They have HPS too...I think a 250w as well. I saw the T5's when I was looking for mine but went with a sunblaze. I just stumbled on this hps for a good price and an honest seller. Been using T5's for a while.
Figong
Well-Known Member
stuckonsticky
Well-Known Member
I'm using two six hundreds in a four and a half by four and a half
jstone1633
Well-Known Member
Can someone recommend a good bulb? Im still not sure if its a digital or magnetic ballast. Home depots website jus says its a screw in terminal and i Cant locate via volt online for a manual.
Figong
Well-Known Member
Ballast type factors into a few other things, as long as you know it's set for HPS then it has the ignitor circuit it in, and any HPS bulb will work... some better than others depending on what you want to spend.
jstone1633
Well-Known Member
Can someone recommend a brand? Ive seen them from 20-100 dollars a piece...is there a big difference?
Figong
Well-Known Member
There is, based on spectrum, and PAR/lumen output, etc. Hortilux is considered one of, if not the best in the industry.. but they like to price gouge in some aspects so you'll see their bulbs around the 75ish (or higher) range. Many other options, like Ushio - the Ushio 400w HPS is pretty nice and can run from 50-60.
