whulkamania
Well-Known Member
The title says it all.
Can I use a 400W HPS Bulb during Vegging a Flowering?
- Thread starter whulkamania
- Start date
bettertoday55
Active Member
Yes you can but it will cause stretching and internoding so I would try to get some of the blue end of the spectrum in their with some CFL's 2700k-3500K. But to answer your question you can for sure just make sure if they are clones or seedlings you have them a good 3 1/2 to 4 feet from the light.
I am a novice but from all the reading I have been doing I am pretty sure what I said is right.
Please people correct me if I am wrong.
BT55
I am a novice but from all the reading I have been doing I am pretty sure what I said is right.
Please people correct me if I am wrong.
BT55
whulkamania
Well-Known Member
Am I better off using two 100W CFL's during Vegging, Maybe the first three weeks?.
bettertoday55
Active Member
I would say yes if they are the right spectrum. You are looking for the ones that put off more of a blue light than an orange.
bettertoday55
Active Member
**** From my previous post the first one. 2700K-3500K is not what you want. Sorry You want the higher 6500K they are the blue spectrum and most of the time called Daylight on the package. Again I am sorry but I just checked and this is the right info
bettertoday55
Active Member
whulkamania......
I would wait for more info because like I said I am a novice and from looking at GrowTech's Journal he knows more than me. Just trying to put in what I have read.
BT55
I would wait for more info because like I said I am a novice and from looking at GrowTech's Journal he knows more than me. Just trying to put in what I have read.
BT55
caddyluck
Well-Known Member
You are in a better situation than me. I have a 400 MH I have to use for flowering. CFL is the way to go to veg, depending on how many plants you are growing---you can also use the 4' shoplights. I am vegging under two shoplights and will flower under the 400MH. If you veg under CFL and then put them under the HPS to flower they will EXPLODE!!!!
GrowTech
stays relevant.
You are in a better situation than me. I have a 400 MH I have to use for flowering. CFL is the way to go to veg, depending on how many plants you are growing---you can also use the 4' shoplights. I am vegging under two shoplights and will flower under the 400MH. If you veg under CFL and then put them under the HPS to flower they will EXPLODE!!!!
I find that MH is the best to veg under... Why would you not complete the entire cycle with the MH? MH is excellent for vegging, and it is said that the light from an MH produces more resin during flowering which is not really a bad thing.
whulkamania
Well-Known Member
I think if one only has one HID light, the best route is to veg under floro. Of course, IDEALLY it is best to veg under MH & flower under HPS. I think once the plants hit any HID light in flowering they love it.
wyteberrywidow
Global
im veggin right now using a 400 hps and floros u can use a mh but hps is better if u have a cool tube u can put ur 400 watt within inches of ur tops no problem i might get a 250 or 150 hps to veg because it has more lumens than an mh (more lumens more plant growth more yeild)so i can just use my 400 to bud and keep it on for just 12 hours because using it for 24 or 18 hours is alot of money in the states a 400 adds an extra 47 dollars on my elec bill every month so i rather run a 250 or 150 for 18 hours
GrowTech
stays relevant.
Metal Halide systems can be purchased at InsideSun.com as well as conversion bulbs if you want to run MH from your HPS system, and you could also purchase MH conversion bulbs from 400w HPS-MH conversion bulb 1000w HPS-MH conversion bulb
They cost a bit, but it's either 1 system 2 light, or 2 systems, 2 lights.
MH is what I consider to be top notch for vegetative growth.
whulkamania
Well-Known Member
So am I better off using a 400W HPS during Veg and Flowering?
GrowTech
stays relevant.
Yes, rather than using your 2 CFL bulbs.
You might consider purchasing a MH conversion bulb though, it will provide you at least 2-3 vegetative cycles, and you can decide later if you want to continue with MH, HPS, or Flouro for your vegetative cycles.
apprentice
Active Member
nuffin, the more i read the more easier growing sounds!
ill just settle for 1 400hps for my first plant. i need to experience this thing called 'trial and error' [=
ill just settle for 1 400hps for my first plant. i need to experience this thing called 'trial and error' [=
if its your only choice ther is nothing wrong with vegging under hps as GrowTech has suggested .... however you can purchase a metal halide conversion bulb also as GrowTech has suggested which will screw in and run flawlessly in your hps lighting system which will be better for vegging than the hps would be
but again if all you have is an HPS your plants will veg fine under it
but again if all you have is an HPS your plants will veg fine under it
