400watt hps vs 4' 8 bulb t-5's

budightman

Active Member
Is it safe to leave a 250 wt hps running for 3-4 days unattended? I want to start a grow now, but I know I will have to leave them for a couple days over thankgiving weekend. Any advice?
 

Microracer87

Well-Known Member
Just set the height of the light too where you'd set it for 3 days later. So if your plant grows .5" a day and you're gonna be gone for 3 days then move your light up 1.5". Unless they're seedlings then it's kinda tought because you dont want them to stretch.
 
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