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amazing workmanship especially like the "clean" etches.... my first attempt at etching was a little embarrassing...... :) what are the dimensions of ferite board are you squeezing 12 led's on to?

nice presentation of your ideas as always sds! sorry I can only add to your thread with a question.... but are you looking at almost 80w full pelt? 2 or 3 sg ft canopy?

Very cool thread! I have done a lot of this when making effect pedals and diy rack units. I have about 10 boards left. Small ones about 10cm by 10cm. I have never thought of them in the thermal sense?! They seem kinda light. What w/cm2 do you forsee?

indeed: 30 dolars for a 10w 90 degree ledengin LZ4!! Well I was hoping there might be some 660nm that had 120 beam angle and maybe could "keep up" running the xml at 1A? Then again the xt-e at 700ma doesnt seem comparably less in output regarding the difference in cost (half the price and...

Hey supra very Very impressive, As a bonus these are available mounted on stars in europe which is great. the t3 looks healthy enough in the 630 range. Would prob need to bump up the blue with a sparing amount of U2 but could you recommend a 660 red to keep up with the intensity of the xm-l2?

hehe! I ordered mine this eve... EDIt: 4000cm2 surface area.... rated for 215 TDW

Ah, whatever you think you can do, someone else has done it somewhere else, only better!.... Still - nice to have the xte data

ooops wrong file sorry! CLICK HERE FOR FILE

OK - Can i preface this by saying this is more than likely of little use and I might of wasted an hour or two for nothing. Still there is hope.... Basically I plugged the Relative Spectral Power Distribution values for the xt-e white led's - you can choose how many of each to use and your chart...

You are a legend! thank you :thumb:

I was hoping to use these! each rated for 215w tdp if i can figure ou a way of attaching (thermally efficient transfer) these well to aluminium sheets maybe one per panel I figured it was do. They are old stock now so 10 dollars each and monster coolers!

Ok So to mach the crees luminosity I could run the 5w LZ1-00R205 ledengine led's but havent read anything on these and I am in no mans land regarding my ratio :( Certainly out of my depth now

Ok - For now I am concentrating in dialing in the flower panel as My CFL Veg is going well and i'll have something to flower before I have something to start a fresh veg with. To recap I am at: 22WW : 12(660) : 8(630) : 6CW for my flower spectrum 45% Cree XT-E Warm White Bin Q4 2700k...

Great point Fran how about: Oslon SSL 80 LRCP7P-JRJT (JS) RED 630nm as a replacement driven at the 700ma?

Hey Supra - how do you calculate your 'overall' percantages of colour? Is it very complicated? Concentrating on my Flowering Mode I think I want to use: (But this is a percentage/ratio of diodes NOT spectrum as they all have various spectrum values....) 45% Cree XT-E Warm White Bin Q4...

Thanks folks you are helping me a great deal I appreciate it. I can get 4 of these puppies for 80 dollars shipped. Virtualy Silent and are rated for 215w TDP EACH Idea is maybe to bond them to 4mm plates of aluminium?..................... If I did two panels I figure I could get a way...

If thats the Case do I just go for top bin diodes? For example the 3750k R3 XTE (flux 122) warm white instead of the 2700k E8 (flux 107) warm white as the flux is where its at?

oooooooh - (distant rumblings of realisation dawning!....) Sobasicaly you are saying the throw of light and how we measure it are very different things between led = cfls?? am I on the right track even? Sorry Petflora - Yes I have much great reading from your thread and was at one stage...

Ok so I been searching and cant fin any notes/reference o ideal spacing betwen each 3w diode? Is there a magic distance? I see some people using stars mounted right along side each other..... As for lens degree angle. I dont know.... - It doesnt seem to make sense to project on to the sides of...

I would be very much in favour of a full spectrum setup as opposed to dual.... However as a novice and just starting to get to grips with the theory It is easier to "half get it right" when coming up with a specific flower or veg spectrum. I fear with a Full spectrum It would be alot more...