NairnM16
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Can you veg with t5s many do I need for a 4x4?
I’m using 600mh the now nd the growth is mental but it’s setting me back about 10 a day in electric so thinking save the hps for flower nd get some t5 for veg, does it need to be an actual grow light or can I go to my nearest hardware shop nd get some?You absolutely can, I personally would want 8-12 bulbs if I were to do that. It may not be the most efficient, watt for watt, but they're very forgiving as far as heat and spacing.
A CMH or standard halide would give you more compact, robust growth. However, they bring their own limitations with heat and necessary distance from canopy.
Just had a look online so would a 4ft 8bulb fixture cover 4 plants in 4x4 during veg?The fixture is all the same, but I would definitely invest in appropriate bulbs. They may survive under white light, but I wouldn't expect them to thrive. A 4ft t5 bulb draws 54 watts, so with 12 bulbs you'll be right back up to that 600 watt range.
Massive help cheers bro I’ll keep you postedAbsolutely. Just be diligent, if they get too big you'll see some serious shading past the footprint of the fixture. Rotate them every day or so, they'll be uniform and happy.
I'm using 4 t8's and 1 t5 - 4ft I want to upgrade to this light. In a small room mine is 5x4 sq I think 8 tubes is over kill.I've used t8's for years but t5's are the way to goMassive help cheers bro I’ll keep you posted
Do you have a link to the 2 led you used?T-5s, 1/2 regular bulbs 1/2 led replacements, 24/7 with these mothersView attachment 945320