Detailed Information on Grow Lighting

I thought some people, especially beginners could find this info useful.

Grow Light Detailed Information, Grow Light, Plant Light, Artificial Light Plant Sunlight, Artificial Plant Light, Intelligent Plant Light

i just have one or two simple questions. im buying a 400W HPS envirolite kit and i know that theres a blue spectrum bulb and a red spectrum bulb. which one is for veg and which is for flowering and do i really need the one for flowering or will i get similiar results by just changing the light cycle when they begin flowering?? any input greatly appreciated ;-)

blue for veg
redish for flower

And it will make a big differnce when flowering, not as much when vegging. Flowering is the most important one, obviously.

so what would be the difference in the bud formation between using just blue spectrum while changing the light cycle or using red spectrum during flowering?

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Originally Posted by Opie Yutts

And it will make a big differnce when flowering, not as much when vegging. Flowering is the most important one, obviously.

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Perhaps double the yield, or more, or less. The point is flowering with blue light is absolutely the wrong way of doing things. Red produces bigger buds by far.