You´re talking about a conversion bulb wich is not the case in the MrGreen vid, plus u can clearly see in the vid the Orange reflection on the mylar..Peace and Pot

My bad, I will have to watch it again to see what hes talking about. Lol I know he is kinda a dipshit.

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there are hps bulbs that have a good blue spectrum saturation. the agro sun and hortilux bulbs have something like 30% more blue than normal hps bulbs

Like i´ve said before those are conversion bulbs, wich is not the case in the video that we are discussing....Peace and Pot

Yes there are ... I have one, Look up the EYE Hrotilux Bulb for HPS its a HPS bulb (mostly red spectrum) but with added blue spectrum for her pleasure, its a lil more expesive but I am sure it is worth every penny not having to switch bulbs or ballasts. Peace.

its also on YouTube - Broadcast Yourself. , just go and search HOW TO GROW GREEN

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The guy is a fag, but he does have a nice set up. Sorry if anyone's feelings were hurt by that remark, but i was refering to fag in a different way. Nothing against the gay community!

What I don't understand about that one video is why he only had about a pound or less with all those plants. Hell I get that amount from just 3-4 plants. K-2 produces a lot more bud than that.

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MH/HPS Dual Spectrum Systems

A full spectrum of light

Optimize plant growth with dual spectrum lighting systems from Sunlight Supply and Hydrofarm. Dual spectrum systems are the only way to truly get full-spectrum plant lighting. This type of hydroponic lighting system blends the blue spectrum of a metal halide lamp with the red spectrum of a high-pressure sodium lamp. Dual spectrum systems offer the best of both worlds and provide the most advantageous hydroponic lighting for all stages of growth.

I purchased a 1000W Super Spectrum Grow Light System And have yet to use it in fear of my plants growing way to much veg. durring budding. Will have to try on a crop sometime.

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the blue spectrum HPS he's referring to is a recent addition to HPS lighting. the only example i have experience with is the Hortilux version. for the 400w, they add a 30w filament of blue spectrum, so you end up with a 430w that works in the same fixture (same deal with other wattages.) precludes the need for switchable ballasts, etc.. provides plenty of overlap in usable spectrum, reduces your bulb purchases, etc. to one type. i think for the 430 hortilux it should be around a $30-40 USD upgrade to a standard output HPS bulb. do your homework..

any more videos?