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Hi people,
I decided to go with fluro's for the veg stage of my next grow to cut a few costs (electric bill) and also so I can make a seperate flowering room with my hps in it.
I have bought 4 4 foot fluros at 40 watts each.
The bulbs that came with them just said white on the boxes. I know I need warm and cool white but is there any way to tell which I have ie colour as I know some are pinkish and others are blueish.
Cheers :D
Hey Colliefish!,
Cool whites are blue/bluish
Warm whites are pinkish/reddesh
Have a good one!
Why would you want warm whites during Vegetative growth? A metal halide is better for vegetative growth than an HPS and it puts out blue. An HPS puts out red.
having both is fine, and an mh using alot of electricity which is why the man's using floros.
Hi guys,
Thanks for your help.
IthoughtInewitall; Does that mean I can grow with just cool white. That is the colour of the bulbs I got with the units.
The reason the original question arose was due to a video called "lets grow cronic" whe "MR Green" says he uses both warm and cool for his veg stage.
Cheers again guys :D
I have only grown with cool whites. And from everything I have read it is the preferred method. You can grow with warms if you want to though. Its kind of like you can grow veg under a HPS just fine but it is recommended you use a Metal Halide. Or you can grow awesome buds under a metal halide but an HPS is preferred because the red spectrum of light is better for flowering. Also, an HPS 400 Watt will put out more lumens than a MH 400 Watt.
Hi IthoughtIknewitall,
Thanks for your help. I will save myself a few £'s and just use the bulbs I got with the units.
The exact type of bulb is "t8 white 3500^k halophosphate"
and they are 36 watt each and not 40 watt as I previously posted.
Cheers :D
Thanx slipknotpsycho
............even better is a mixed variety of 48'' tubes from actinic blue,full spectrum, to red. see pics.........Quote:
Originally Posted by colliefish