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Can i go with 400 HPS from start to finish?
- Thread starter desant
- Start date
frantischek
Member
Yes you can. No Prob.
The only thing thats different, your Plants will stretch a little more than with blue light. Also the rooting will be better through the higher ammount of red light.
The only thing thats different, your Plants will stretch a little more than with blue light. Also the rooting will be better through the higher ammount of red light.
No way, plant shrivel up and die if they get hps in veg.
I'm just kidding, of course you can, it won't make that big of a difference vs. mh.
I'm just kidding, of course you can, it won't make that big of a difference vs. mh.
C
cracker420
i have ran all of my plant under a 400w HPS for veg and havent had a problem yet. i got a bulb from htgsupply.com that has a bit more blue spectrum to it. but it works great!!
I kno i had one like that in my first gro in 2003
Very good veg gro... maybe i should get one of these blueish 400 HPS lights?
Is it going to be OK to plug into the socket and ballast from ordinary 400 HPS ??
frantischek
Member
Yes
WhateverComes
Member
I've used an HPS from start to finish a couple of times. From my experiences I'd say it might be a good idea to give the seedlings a bit of distance from the light (1-2 feet), or maybe leave them under a CFL or two instead of the HPS for the first couple of days, as the radiant heat from the HPS can be a bit intense for little babies. The stretch is not as bad as some make it out to be and can be completely negated if you re-pot and bury the lower portion of the stem.
What WhateverComes said 
Nemesi5
Member
yes that will work out fine. i have a swichable so i used mh in veg but. have you considered looking into CMH for veg? you should be able to use a cmh bulb in that 400w hps and then flower pop in hps bulb. even if you use regular hps in veg u will have good light. maybe a bit of strech but more lumens. it'll work out good
Just remember when switching from lower light to higher light that the pots will dry faster especially with little babies and are easy to dry out and kill. Just keep an eye on the drying time of the pots your girls are in.
I use the same 250 w MH lights (different bulbs) for veg and flower. I just start them out with the light all the way up (about 3 ft above the seedlings), then gradually lower them over the first 2 weeks. If you get the lights too close too fast, the plants will let you know.
