Dec 30, 2017 #1 A angelass Active Member Autos, week 4-5 from seed, preflowers barely showing. Time to go HPS? Do HPS lamps run hotter than MH - If so how much higher should I raise them (MH now @ ~22') Any other thoughts/comments? edited and corrected
Autos, week 4-5 from seed, preflowers barely showing. Time to go HPS? Do HPS lamps run hotter than MH - If so how much higher should I raise them (MH now @ ~22') Any other thoughts/comments? edited and corrected
Dec 30, 2017 #2 Marzbadrock Well-Known Member Plant of the Month September 2015 4 Nug of the Month October 2021 You want to use MH for your veg stage then switch to HPS
Dec 30, 2017 Thread starter #3 A angelass Active Member Marzbadrock said: You want to use MH for your veg stage then switch to HPS Click to expand... OOps n Thanks - I said it all backwards! Still same concerns though MH to HPS
Marzbadrock said: You want to use MH for your veg stage then switch to HPS Click to expand... OOps n Thanks - I said it all backwards! Still same concerns though MH to HPS
Dec 30, 2017 #4 Marzbadrock Well-Known Member Plant of the Month September 2015 4 Nug of the Month October 2021 It all depends on air flow n circulation. Try to keep temp on top of canopy 75 to 80. I use air cooled hood with cold air intake n good circulation, I keep my 1000w hps about 20 inches from canopy.
It all depends on air flow n circulation. Try to keep temp on top of canopy 75 to 80. I use air cooled hood with cold air intake n good circulation, I keep my 1000w hps about 20 inches from canopy.
Dec 31, 2017 Thread starter #5 A angelass Active Member Thanks Marz - Aircooled, good circ & temp too, currently MH @ ~20". Questions... Do the HPS run considerably hotter than MH? Thinking so, may start HPS lamps ~6" higher than MH is now. Autos @ 4-5 weeks & preflower - Is it a good time to swap from MH to HPS or should I wait? Happy New Year Very hesitant to take pics with phone & post - Am I too paranoid?
Thanks Marz - Aircooled, good circ & temp too, currently MH @ ~20". Questions... Do the HPS run considerably hotter than MH? Thinking so, may start HPS lamps ~6" higher than MH is now. Autos @ 4-5 weeks & preflower - Is it a good time to swap from MH to HPS or should I wait? Happy New Year Very hesitant to take pics with phone & post - Am I too paranoid?