Hiya Medikal
Do some reading and research. I checked with Bridgelux and the only 3 Watt LED they sell that is in the spectrum that Advantage uses (760nm,740nm, 720nm, 660nm, 630nm, 615-480nm, 460nm 440nm, 415nm, 380nm - call them if you doubt me), is the 460 nm. As to the Epitar, the only one they could use would be the 630 nm (which is red). However, both Bridgelux and Epistar do sell some of the other wavelengths in 1 watt diodes. Either way, Advantage is making false statements, and that turns me off them.
What you say is true, I have not done any grows with LED lights. However, none of this is what you refer to as B.S. The B.S. that I see, is on the web pages where these companies make false promises and lie about their product. If you had bothered to read my post, I said what I would like to see is a REAL side-by-side comparison. Same clones, shared reservoir, same sized growspace, with the same fans, pumps and venting. Have the grow areas be seperated for light and have several grow lights evaluated (Advantage, Area 51, Solar Storm etc.). Maybe even have one of the grow areas runn CFLs as a control.
You see, I am an electrical engineer, and for me, having used everything from 1/8 - 5 watt LEDs in various components, have not found any quality differences in "American" LEDs versus "Asian" LEDs. That was different 5 years ago, when Cree and Epistar were King. Now all these LEDs are manufacturered in asia. So why would I want to buy American branded (asian made) LEDs at double the price? By the way, where exactly do you think the Advantage, Penetrator, Magnum+ etc. lights are made?
Shenzhen Baisheng Semiconductor Lighting Co.
LG-LED Solutions Technology
Twilight Group
etc.
all chinese plants (most of them in Shenzhen). By buying all the parts premade from China and assembling the parts together in America, makes it "American" made.
You are happy with your DS300s and I am not surprised. They do look like a decent light (read my previous posting where I say this). They have the right spectrum, it appears that they have the right ratios, and I'm sure that they work very well. I was considering getting one of them (don't care if they are made in China), but was saving up to be able to purchase them. I may still. But for me, I will continue to wait until I see more grow journals before I decide which LED light to get. I can guarentee you however, that the next DS series (Advanced) will be modular, because it is the smart way to go. I'm glad that Area51 thoughtthe concept up.
Borghead