Fonz,
What do you think of this spectrum?
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That spectrum comes from the new Philips 315w CMH AGRO lamp that Cycloptics is using in their grow cabs. The spectrum is great, the 315w part isn't. They have e-ballasts to run these, but they don't come at a low cost. I've heard that they will also run just fine on a standard 400w magnetic ballast, but I would confirm it with Philips before trying it since the lamps are over $100 a pop. And you would need 3 of them to match the power of a 1000w = unreal expense. If 315w is enough for your grow then I would say go for it! I'm really excited about these new lamps and so are a bunch of other growers. They are going to work very well.
I just ordered the Philips 860w CMH Allstart 3700K lamp JUST TO MEASURE THE SPECTRUM. Yeah I know, what a crazy way to spend the money right? I can't find a spectral analysis anywhere for their 860w Allstart and would really like to know what it consists of. This lamp is a Vertical running only lamp. I am going to build my own reflector and may even build my own ballast to run it unless buying a Sunsystem is cheaper.
Has anyone had experience with the Sunsystem Harvest Pro 1000w MH ballast here? They say they have an easy access door to change out the capacitor, which sounds a little sketchy. Would the Harvest Pro Elite be the way to go? The Elite keeps the magnetic ballast part(the HOT part) separate from the capacitor and other crap that shouldn't be getting hot.
There is this new company out that is boasting their new full-spectrum lamp and it looks identical to the AllStart. This new company(DNA lighting solutions) have developed their own E-ballast to run their 900w CMH which would be a nice piece of equipment to use. I am thinking that the lamp is just the Philips Allstart, however, and they are just rebranding/packaging them with their own label. There is a large CMH thread over in IC talking about it right now, but no one has the spectrum for the 860w Allstart.
I've looked and looked online to no avail. If the 860w spectrum is nice like this one, it would be a hit. They also run on a standard M141 mag ballast. The only part I worry about is the amount of blue light in the 860w since it's a 3700-4000k lamp. The graph you posted here is for their 3100K lamp which is more along the "denser flowers, less leaves" line.
I really wish Philips would start making a 860w CMH Agro lamp that would be in the 3100K area AND have the deep red peak like their 315w Agro have.
These lamps really are the way to go if they weren't so damn expensive for lamp and ballast.