Are there any bulbs out there with NO green? Just askin, I only know of LED grow lights that have just red and blue, but they don't compare to HID bulbs...I Have a 400 watt MH Hortilux BLUE Full SPectrum Bulb. It has Blue, Green, Yellow, Red. It has every spectrum in one bulb vegging and flowering stages.
Yeah..that's one reason why they're still not great for growing...LEDs on the other hand are monochromatic.. Their light output will be a single peak at whatever wavelength they pump out..
Ahhh! Man! That makes sooooo much sense! I'll have to remember that!OMG, I cannot believe what I'm reading here..
Look, MH's are great for VEGitive growth because of the Blue~White Spectrum, which Promotes Growth...
HPS which is on the more yellow/red/Orange ends of the Light Spectrum are more condusive for Flowering....
There is 'NO" unconfirmed BS, whether MH vs. HPS is better for flowering vice versa..
I've seen Many examples side by side, and by My own experience..
HPS is better.. Think, your in effect fooling the plant, manipulating photo-period in the Light HOURS, plus using the red/yellow ends of the Light spectrum, the plant "senses" that "Fall" is approaching, thus produces flowers,, ie: buds...
think about it...
Whoah! This really IS advanced growing section, isn't it!Well, if that peak is in a photosynthetic hotspot like 660-680nm, then you'll get allot more photosynthesis/watt using that.. If you had an array of LEDs that covered the wavelengths of all important light dependant reactions in plants (with the majority focusing on chlorophyll peaks) then you could grow more bud with fewer watts than anything else on the market today..
Cost would be ridonkulous though by today's standards!
IMO ive never grown autos as of yet. but i think that a MH for veg helps give you a shorter denser plant, where as an HPS will have some stretch.So going by what I read here, why do I keep getting told by experienced AUTO growers that the MH is NOT good for vegging autos...even with a short veg period, it would seem that MH would be best. I keep getting told to use a 125W CFL for the veg then switch to my 400W HPS.