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100w Medium Base HPS lights

enjia2000

Member
I currently run 12 x 23w CFLs in a flowering cab I made. I'm looking to make a cheap upgrade for more penetration and less heat.

Now here's my question. Do 100w HPS still need a ballast to run? Do all HPS bulbs need a ballast?

Maybe there's a easier upgrade route?
 

dansbuds

Retired from the workforce Bullshit
ICMag Donor
Veteran
yes all HID lighting has a ballast . so many ways to upgrade your lighting its hard to give good advise . a little more about your space , ventilation & etc.... would help us to inform you .
HPS /MH = more heat
more cfl's =more heat
pll's = more heat
led's = less heat more cost
 

enjia2000

Member
I have a small flowering cab about 4'x3'x4'

In there I have 8 plants in a perpetual setup. My moms and clones are in a completely different area.

I'm thinking 2x150w might be the way to go if I need to get ballasts, I've found a whole setup for 70$ each. Giving Each 2'x1.5' area it's own 150w light.

That makes sense right?

Some more notes: Growing in a soiless medium with general hydropoincs neuts. Taking clones and vegging for a few weeks before they get put into the flowering chamber for 8 weeks.

Flowering chamber is 12/12 perpetual.

I'll take some pics and post them tomorrow if that would help.
 

DiscoBiscuit

weed fiend
Veteran
Hello, enjia2000. As cabinet grows go, yours is a relative whopper. You've got a 12 sq foot print. A general tip for HID grows is 50wpsf. If you had the headroom, you could rock 600 watts.

Even a 400 needs a little space between the bulb and canopy. I'm not sure how much headroom you'd net.

Since your footprint is rectangular, I see two 250s hanging vertically and one oval plant arrangement around both bulbs. It's only ~41 wpsf but close proximity with plants and bulbs would make up some difference. It's not bad to have a bit of room on the periphery of the cab for maintenance.

Whatever you decide, you can grow a load in that box.:)
 

enjia2000

Member
Whatever you decide, you can grow a load in that box.:)

I'm pulling 2-3 oz a month right now.

I finally had the balls to order some seeds from overseas so in 3-4 months your going to see some Nirvana Shop AK-48 ladies rocking the cabinet. =]

here's some pics. (I may have been way off on the dimensions, please don't hate me, lol)

The Cabinet
rhhNX.jpg


Top/Inside of the Cabinet
VQURC.jpg


One of my plants a few weeks into flower
OpneY.jpg


A pic before I started doing clones.
rIWOv.jpg


My previous cabinet where I didn't know proper neut levels. =]
Q9yV7.jpg
 

DiscoBiscuit

weed fiend
Veteran
enjia2000, that cab looks closer to 3 x 1.5 x 3. Forget the two 250s. A single 250 mounted horizontal would be ~56 wpsf. You'd need ~100 cfm exhaust if you want a comparable scrubber.

Freezerboy and Verdant Green are specialists and have 250 experience. If you're mulling it over, drop em a pm and see what they say. Who knows, maybe they'll drop by here.

Nice pics. Best wishes with your setup.
 

enjia2000

Member
I ended up going with a single 150w to replace the 6 inner most lights keeping the outer 6 cfls to supplement light. About a 70$ investment, thanks for your input Disco.
 

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