Hi man, i am completely new to this forum, this is my first post. Im just starting my own LED project. I already had an Apollo 6, had only one flowering cycle and i sold it. Not that i considered it to be bad, it's just that it didn't cover my expectations. I was hoping to get close to my ex 400W kit, but it really couldn't do it. Flowers developed fine, but they didn't become as dense and big as with mi 400, and also, the buds couldnt cover the branch in between nods, so instead of getting the big buds, i got plenty of more reduced ones, never the less, the plants developed really healthy, but the flowering just wasn't what i expected it to be. I didn't do things perfectly and i could have filled more the space, but it gave me an idea of what this panel could do, or mostly what i could be getting from it. In that matter, a realized that it wouldnt be a real yield improvment over same wattage in HID. Mostly i would be getting the benefits of the low heat, the longer lifespan and the more easy to mount easy to use benefit over complicated ballast and coolboxes, airtubes, etc. But it wouldnt be the more yield per watt performance i was looking. In that matter, i think that Apollo's really can do same as HID at same wattage, and you get all of those other benefits mentioned at a very fair price. But they can't, in my opinion, outperform an HID lamp. Giving this, i sold mi Apollo, and now i did some really deep research on LED's. Found out there were some things one should pay attention when buying a led panel. First and most important to me, the diodes. Having Bridgelux, Epistar or Luxeon lamps, is not the same as using CREE, Seoul or Osram lamps. Panels based on first mentioned are half the price making them, BUT this comes qith a little lower performance also. The second mentioned lamps have more efficiency, meaning more lumens per watt and longer lifespan also. This means you would need more watts of those ather lamps to output the same amount of light that you can do with those better lamps. Osram Golden Dragon plus or CREE XP-E models are one of the best types available. Panels based on that technologies, will surelly outperform any chinese LED panel, this including most USA panels being same chinese panels being rebranded. Then, after getting better most efficient lamps, you can start tuning the wavelength's. In that matter, it is my opinion, that full spectrum is not necesary, for me, you have to focus in RED peaks and BLUE peaks. It will depend on what are you going to use your panel for, if it's going to be mostly for growing or veging. After taking care of the ratio between RED and BLUE you want, you could add some FAR red Lamps that would help in timing of different stages, and also you could replace some BLUE lights for some cool whites 10.000K lamps, which would give you a lot of blue light and also will cover some of other spectrum wavelength's minimally in case plant could use some of it, like green, or orange maybe. So, using only 3 and max 4 bands, you can have a panel that is completely focused on plant peaks but can also cover some of other wavelength's minimally in case they could use some. EVOleds from spain, that had shown great results, use only CREE lamps and only RED 630nm and Cool white 10.000K in the ratio of 6:3. (The peak of red absortion is 660nm, but CREE doesn't make that wavelength, only 630nm, but even being less precise on wavelength, the more efficiency of this lamp giving more lumens per watt in an almost accurate wavelength, finally is better than having a less efficient light in the exact correct wavelength) as you can see EVOleds are using only 2 bands, yet it covers the full spectrum with peaks on BLUE and mostly on RED. In fact, the light spectrum curve this light emits, it's practically identical to the PAR light curve. I'm now waiting for my new CREE based panels and see for real, if this can show to be a real improvment. I'm expecting to get heat, lifespan, easy use AND yield performance benefits. In that way i think the Apollo could cover the first 3 aspects, but came a little behind on the fourth one. In that matter, i belive you could have done the same with a 1000 W HID if not maybe better, but you obviusly saved some heat issues and all that stuff involved in having HID lamps. Soon i will be starting a thread with my set up as soon as my panels arrive. Hope to be not too anoying with too much writing, it is just i am learning so much from different forums, i want to give some of that i think i have "learned" to others and maybe contribute to getting the info right. Because in the LED market there is so many lies, so many bulshit, so many claiming what is not real, i think it is important to give some points that are important to consider when someone offers you "THE BEST LED PANEL IN THE WORLD" Why is it the best? is it built with the best lamps available? are those lamps tuned wiselly in order to get the best efficiency of them? (lamps will give you more or less efficiency depending on the current, at 700ma, a 3W lamp will not give you the best efficiency), also heat, at more heat led's give you less efficiency. There are many many factors to consider when choosing the right LED panel, and i can recomend making a lot of research because there is too much misleading information about it, even fake journals and fake members in forums giving backup to their own products undercovered. The LED market has a certain amount of mafia going on, and it is important to get deep in the info so you can reallly go for the best choice for you. I think the Apollo series, are just excellent for the price, really, solid well built, gives you a nice performance and has an excellent heat dissipation system and also they look in appereance very nice. Also you can modify the light spectrum as you wish. If i could turn back time, i would have made my own spectrum, putting in each 15 leds cluster, 12 RED's, 1 Blue, 2 Cool White and 1 far red lamps on each cluster, giving a total of 72 REDs, 6 BLUE's, 12 Cool White's and 6 far red lamps. that i think would have given me a nice full power flowering performance, reducing some growth performance i was not very interested in, but still keeping some of that blue spectrum and increasing some full spectrum and more lumens adding more Cool Whites, since whites have even better efficiency than color lamps, giving even more lumens per watt. It's a lot of info maybe, i think this can help to expand knowledge, since as i tell you, im sharing now, to give back all i have learned from all of you in so many forums that have been of so much help to me. Ill be posting my journal, would be very pleased if you and anyone who wants to see what LED technology can pull out, come and give me your thoughts, suggestions and considerations to pull it off the right way. Thanks for your sharing, and i hope i can become more involved in this community to share experiences and knowledge. Thanks again.