Lighting grow bulb the few weeks?

[hiking high]

Ive read a few places that if u switch out bulbs and toss back in the veg bulb ( diffrent spectrum) it will help the buds bulk up. It This true

 

[Epic Genetics]

no , it will make for leafy buds , giving the appearance of a bigger yield , yet actually weighing less

what it can do is help trichome production

peace