Quote Originally Posted by Marc Benson
"However, the lack of blue spectrum light in Standard HPS bulbs can sometimes make a plant stretch during the vegetative growth stage. Enhanced Performance HPS lamps have a wider blue spectrum, which makes a significant difference in plant growth."

Exactly. This bulb is superior for vegetative growth compared to an HPS. No question.

But all the blue spectrum provided simply isnt needed...nor used....for flower purposes.

For flowering, MJ uses, needs and wants red spectrum, or roughly 2700K.

The plant simply doesn;t use the blue waves to grow when flowering. It is just running juice which is cool if you dont mind the bill.

Place what you want over your plants...the plant will take what it can get but only if what it needs isnt present.

If you have good red spectrum, all the blue in the world wont hurt, but the fact remains MJ uses red for flower.

There is no question about that anyhow