15 400 watt. hps(comercial grow)

[burnbig420]

hey guys i need some help. first off let me say that i am a commercial grower been doin it for many years and i have always found i prefer using multiple 400 watt light as opposed to using fewer 600 or 1000 watt. lights. i like the 400s cause i can normally get them with in 7-9 inches of my canopy with out burning(when proporly cooled). how ever this grow something is a lil different. i have a crop going right now they are 2 weeks and a day old and i can not seem to get the lights any closer than 20in. of the canopy without the leave tips curling up(indicating heat stress). the rooms stays with in 72-76. there is good ventilation, and many oscilating fans..any help would be greatly appreciated.

 

[ledgrowing]

try cool tubes or get reflectors with glass covers and cooling vents also if u want a really good bulb try these grow lush bulbs there form australia but can be found on ebay for around 35dollars us i have tried eye hotilux and so on this is the brightess 400 i have ever seen at 65 200 lum

 

[burnbig420]

try cool tubes or get reflectors with glass covers and cooling vents also if u want a really good bulb try these grow lush bulbs there form australia but can be found on ebay for around 35dollars us i have tried eye hotilux and so on this is the brightess 400 i have ever seen at 65 200 lum

lol those are the bulbs i use i get them from a place in houston. thanks for the reply..n ya i was debating on getting glass covers.

 

[ledgrowing]

how much do you pay for them were im from cant be found so i ebay mine

 

[CRYSTAL ICEMAN]

Do they offer the bulbs your talking about in 600w??

 

[pokesalotasmot]

lol those are the bulbs i use i get them from a place in houston. thanks for the reply..n ya i was debating on getting glass covers.

Did you switch to growing a different strain? Check your nutes/ppm?

 

[ledgrowing]

ya 600 and a 1000

 

[burnbig420]

how much do you pay for them were im from cant be found so i ebay mine

im i regular customer so i get 35 % off but i thing normally there are 65 bucks a piece

and yes i agree they are one of the best bulbs out there

 

[ledgrowing]

sweet so 45 shipping inc is a good deal thats all i wanted to know

 

[burnbig420]

Did you switch to growing a different strain? Check your nutes/ppm?

nope same strains-nortern lights, afgan kush, big bud, southern skunk

nutes, n ppm are great

 

[burnbig420]

sweet so 45 shipping inc is a good deal thats all i wanted to know

o yea great deal for shure..

 

[CRYSTAL ICEMAN]

So, are they just apearing brighter or are they producing better,higher lumens??

 

[burnbig420]

So, are they just apearing brighter or are they producing better,higher lumens??

the reason they produce brighter light is cuz of the glass on the bulb. not shure exactly but it alows more light penetration therefore more light...

if you want more lumens you can put a 430 watt. bulb on a 400 watt balast

 

[Dirtfree]

Burnbig,
How is your intake? Could be lack of fresh air.....

Also are they curling up or straight leafed like they are praying? If they are curling thats stress, if its praying you may need more calmag. Hence the term praying for magnesium.

 

[burnbig420]

Burnbig,
How is your intake? Could be lack of fresh air.....

Also are they curling up or straight leafed like they are praying? If they are curling thats stress, if its praying you may need more calmag. Hence the term praying for magnesium.

ya i was thinking it was fresh air problem also.. i have 4 inline fans on the way.,

thanks for the reply

 

[Dirtfree]

Burnbig,
What part of the great state you in?


Dirtfree

 

[burnbig420]

Burnbig,
What part of the great state you in?


Dirtfree

i own a ranch out about 130 miles out of houston...

 

[That 5hit]

do you have co2