You can flower with a blue spectrum bulb, but the flowers are very small and are not compact. Also tastes like crap. Friend grows this way because he is to cheap to buy the right stuff. He makes 5 figure income and refuses to do it any other way! Even knowing what I grow and toke with him.

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Vote's Grow Journal Absolutely No Posting! Thanks!

I'd suggest you're getting your cause and affects mixed up here. Light, the quality of, quantity of and spectrum of has no affect whatsoever on taste. That remains very firmly in the area of nutrient quality, growing medium quality, drying and curing and grower ability.

I'd suggest your friend isn't flushing properly in the last couple of weeks, after using cheap and nasty chemical/mineral nutrients.

use some sugar in ur soil, that should clear that up. just a little sprinkled on the top, molasses, honey, etc, those'll do it. never really tried, but i've read a lot about it. easy tho, don't kill ur bud's Buds

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one puff, two puff, red puff blue puff, I'm so stoned I'm quoting Dr. Seuss Stuff

You'll be good with that light, but as others have stated you want 'red' light on the light spectrum for flowering; around 3,000k.

Good luck, keep us posted.

LOUNGE

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I hate to advocate drugs, alcohol, violence, or insanity to anyone, but they've always worked for me. H.S. Thompson

I vote mh/hps switchable ballast,that way u will never say damn I should have!

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God made weed man made beer in God we trust