ok heres the story, one mans pink is another mans fuchsia...
so the "pink" bulb is a misnomer because many bulbs can "appear" to the eye to be a specific color but in reality are more different than they appear....
I use fiji purple (personal preference because in my own research they make for the only mixed bulb that has a large amount of red and blue...
I also use the UVL 75.25 for the perfect triband bulb.IMHO
red suns for flowering and a strong actinic bulb for vegging. like the 451 or Actinic or blue plus.
heres my theory and its proven science...
if you control the light your plants get IE (red)[redsun], (blue)[actinic], Mixed[75.25,fiji]
you can easily replace a solid color for another color during the veg/bloom phase to suit your need and the plants needs.
now if you use all 6500k bulbs or a majority which one? theres well over 30 varieties from GE{Starcoat} to [Veg] bulbs all use different degrees of "white" or "triband" phosphors which is very hard to control what your plants want/need...
my method just allows you to create a growing environment that YOU the grower can adjust the amount and level of light including {UV/IR} which the plants need at different stages of development. if i use a strong atinic i dont "need" the triband 6500 and i dont create unnecessary light that the plant uses @ a less efficient level. sure plants can grow under incandecant light but you need TONS of it... why reate energy the plant doesent use?
Now that being said it all depends on your setup, i would suggest a good actinic, UVL454 or actinic plus, a 75.25 or 1000k[less yellow/orange light than 6500k], a red& blue like the planta or the fuji purple... then throw in some red suns during veg and remove the actinics... now theres a caveat, and this is from a ton of research you can google. Actinic light/UV promotes resin production, this is a fact that has been tested and proven by many botanical studies... UV light is damaging to plants so in order to protect themselves plants produce defense mechanisms, and in cannabis research has shown resin glands o be created in abundance during the introduction of UV light.. if in doubt i suggest reading
https://www.rollitup.org/advanced-marijuana-cultivation/452030-c-wiz-advanced-cannabis-lounge.html
CANNAWIZARD can attest to this phenomenon and has EXTENSIVE TESTING in this arena. HE also uses PAR LIGHTING in his grows as it ENHANCES his crop... take it for what its worth...
I have never and will never discuss yield, or growth or weight as this is not the place for that... I can attest and it has already been posted in this very forum that QUALITY has been increased using this method. Also I would like to mention that others have done comparisons with this method vs 1000W and 600W with great results, weight not included as 480W is not = 600W HID. But i would bet the Quality is better on the T5 end
and that is what were all trying to achieve..