sneakerhead702
Well-Known Member
I was just wondering can I use use MH or a HPS light for seedlings? If so how far does it has to be from the plants?
can i use MH or an HPS light fore seedlings?
- Thread starter sneakerhead702
- Start date
PeteSwitch
Well-Known Member
You're better off using fluorescents because HID lighting is too intense. If you have no other means then start off having the light one and a half to two feet from your plants MINIMUM & if your seedlings show stress than move the lights further away to be safe.
sneakerhead702
Well-Known Member
stlmatt
Active Member
I start all my seedling with a 400 watt MH and have not had any issues. I keep them in a humidity dome for the first week or so then take the dome off and let them grow untill they have 2-3 nodes. Then onto the big pots. Yes you can use a MH for seedling, as far as how far away that depends on you hood setup and wattage. I place mine about 12-18" away, but I use a air cooled hood.
Stlmatt
Stlmatt
skolar182
Well-Known Member
Same here, I use my 400w MH from seed through veg, no issues... I don't know why people say it's too intense as long as you're not burning your plants the more light the better. 18" - 24" should be fine with a 400w light.
mikegrowstrong
Member
Ive never tried to start them under my 400W MH or HPS. I always just stuck to the flouros until they had a few solid leaves on em. I'de be willing to give it shot but my light still gets pretty hot even 18 inches away. Then I would be worried about them stretching and falling over. I could be wrong though, like I said, I never tried.