NEED INTRUCTION FOR LAMP!

Plenty of people use cfl's for grows, you just need to buy a lot of them and constantly adjust them. People say they get dense nugs with cfl's, they look nice, but hid's penetrate much deeper and make much denser buds. Nothing against cfl's, I would just rather have 1 light to adjust and 1 cord to run, i dont like clutter in my tent. I dont know where your located but if you want to run hid, search for a 400 watt dimmable digital growlight, it will run bot mh/hps bulbs and you can run it at 200, 300, & 400 watts. I run 600 lumateks with Digilux bulbs and love them. Keep the air moving and watch your temps and youll be good.

well 25,000 lumen of anything is going to penetrate just fine. hell a 250w hps spits out about 30 ish lumen. but you have to deal with the heat! main reason why CFL's are good. and if you know what your doing you definitely can get killer results.

my photo's speak for them self. cfl's 100% veg to flower

I wouldn't put an HPS in anything smaller than 9 sq ft which is a 3x3. a 400w hps is typically designed to run in a 4x4.

FYI, if you setup your cfl's properly, why would you need to adjust them all the time, I don't.

also power draw. If I was running HPS,.. I would use 220v. which is actually interesting. how many growers are using 220v

CFL//
1. simple
2. less heat
3. bulbs are way cheaper
4. you can customize your light setup
5. no need for tons of cool tubes, ducting and inline fans that keep you awake at night, (more clutter)

I never said anything bad about cfl's, i said plenty of people grow with them. Why would I need to run 220 to run a hps? Its an option but certainly not a necessity. When someone tells me I want to grow large plants, cfl isnt the first thing that comes to my mind. If someone ever shows me a pound of straight cfl grown bud out of 23 watt cfl bulbs out of a 4x4 tent il be praising them as much if not more than the next guy. A 400 watt isnt designed for a 4x4 tent, unless your doing a vert grow or a sog grow i wouldnt recommend a 400 for anything bigger than 30x30 for good buds. I run a 600 in my 4x4 and it works good but I could use a little more. Cfl bulbs are cheaper, but not when u use 20 of them for a grow + 10 splitters+ 10 sockets. Heat really isnt an issue with a vented hood and inline fans arent loud if you suspend them with a bungee cord and use insulated duct. Cfl has its place but not for growing big plants.

yea tru definitely not good for tall plants.

hey guys, long time no see ya .

i was change my light, i use MH 400 watt .
hoho.. that's good for big plant, but not good for a little plant..

temperature rises, to 37 degrees Celsius.
I've added a fan, but it did not go well.
This raises new issues.

hence, why I said you should stick with CFL's.
Just from looking at your pics, I can tell already that your space is too small for a 400w bulb, unless you get the proper cooling setup, intake & out take fans blowing into a different room. You will have issues.
Try to get a lower bulb, maybe a 150w, 75w or use cfl's then switch to the HID when you flower
cfl's only require, typical k-mart fans, computer fans are nifty if your into DIY

Quote:

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Originally Posted by growdemon

hence, why I said you should stick with CFL's.
Just from looking at your pics, I can tell already that your space is too small for a 400w bulb, unless you get the proper cooling setup, intake & out take fans blowing into a different room. You will have issues.
Try to get a lower bulb, maybe a 150w, 75w or use cfl's then switch to the HID when you flower
cfl's only require, typical k-mart fans, computer fans are nifty if your into DIY

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ya it's true dude.
i want change it to cfl 105 watt 6500K, it's good?

You need to slow down, most problems can be worked out if you slow down ant think. If you got the 400 watt dimmable that I suggested then just turn it down to 50% an the heat should be more than manageable until you improve your design. If you have a winged reflector a great way to keep them cool is get yourself a small pc fan like grow demon suggested but what I did was mount it at the end of the fixture with paper clips blowing directly back at the bulb, direct your oscilating fan on the ground blowing the same direction and up, it makes a little vortex of air movement going up and away an helps greatly. I ran a 600 watt in a 30x30 closet with a winged reflector this way with a passive intake and a 6" inline fan for exhaust. Get your airflow corrected and you will be fine

any light u add will help id use at the least 4 32-55 watt cfl 6500 color for veg (8400-12500 lumens)u want more for bloom maybe 4-8 68 watt 2700 color. a plant with a prof bulb gets 55,000 lumens for a 400 watt and a 1000 watt gives 110,000 lumens so the less u use the lower the yield. a good chart is .5 grams per real watt used not equivalent, a 23 watt cfl gives 23 watts not 100

a cardboard box.??? please don't put a 400w HID in a cardboard box setup. hehe. I hope im wrong. and its not a cardboard box. but the pics, I see card board walls

I mean if you look at your plants. they look just fine under the 4 cfl's you had.. they are just a little nute burned on the tips.
they sure got pretty big for just 4 bulbs. let that speak for its self