dbkick
Well-Known Member
Different strokes.......
LEC - Light-Emitting Ceramic
- Thread starter potroastV2
- Start date
dbkick
Well-Known Member
I got two SS, I may be having a hydrofarm but I see you stated 5 year warranty, I see a 3 year warranty listed on the ballast.
BOBBY_G
Well-Known Member
i really cant discuss this anymore, i really feel like im being trolled
without any consideration/measurements of ballast and reflector efficiency, the choices are
air-cooled
remote ballast
multi-volt capable
vs.
cost $100 more and has a short cord from ballast to bulb
BOBBY_G
Well-Known Member
its prob 3 yr ballast 5 yr hood
dbkick
Well-Known Member
Likewise, good luck.
lawlrus
Well-Known Member
They're still around? Are they any good nowadays in terms of shipping and communication?
Astro Aquanaut
Active Member
I believe that is what monster garden posted on youtube for coverage looks like a 3x3 is covered real well... I am still very torn between LED and LEC.. Think I might go for 115w LED for a 2x4, and 4xLEC in a 5x5 that way I have overlap, and it also max's out 1 bucket brain... I can experiment with LED until some uvb led COB's come out...
Most people will say you can get larger coverage, but I want more focused light plus 1260 watts for a 5x5 makes sense for me... The center might be a hot spot
so could spread each light a couple of inches diagonally from each other to resolve that... I have to draw everything out to scale if you haven't noticed... lol... Cali crop doc on youtube did a 4x8 w/ 3 LEC's and they look pretty good...
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ttystikk
Well-Known Member
To resolve your hotspot issue, divide your grow space into four even rectangles the same shape as your tent/space. Now, place each fixture in the exact center of each of those four rectangles and you'll have your even coverage.View attachment 3605689
I believe that is what monster garden posted on youtube for coverage looks like a 3x3 is covered real well... I am still very torn between LED and LEC.. Think I might go for 115w LED for a 2x4, and 4xLEC in a 5x5 that way I have overlap, and it also max's out 1 bucket brain... I can experiment with LED until some uvb led COB's come out...
View attachment 3605693
Most people will say you can get larger coverage, but I want more focused light plus 1260 watts for a 5x5 makes sense for me... The center might be a hot spot
Astro Aquanaut
Active Member
If you take a look at the monster garden deal above basically I think a 6x6 is the right spread, but I am going to attempt the 5x5 see what happens lol.. experiment, because if I can get away with it I will be happy, those reflectors from Sunlight supply seem to have pretty good square foot print going from the PAR readings...
bicit
Well-Known Member
I don't know about now days, but in the past they were pretty prompt and thorough in both regards in my opinion. I bought mine about 2 years ago, LEC bulbs much more available now. They even have 120v compatible ballasts on ebay now days.
Astro Aquanaut
Active Member
Question:
If I have a 3² area and the top right sqft is getting 680 umols(all this is averages, not absolute) for example and I have a light overlap from another light exactly on that sqft that would normally be 620 umols without the overlap is the total umols just simple addition 680+620 or is there a more complicated formula for that? The reason I am asking if you take the monster garden pic and you overlap then it is at 1200 to 1500 umols on the overlaps if it is simple addition which is perfect at 24" w/ overlap. If that is the case then a 5² area w/ 4xLEC using a 55 gal res w/ 24 ebb buckets the simple solution is to leave the center sqft empty and have more areas that are between 1000 to 1500 umols...
I am probably over thinking this, however I want a well executed plan with design, methods, and procedures all mapped out before I take a dive into a circular process...
If I have a 3² area and the top right sqft is getting 680 umols(all this is averages, not absolute) for example and I have a light overlap from another light exactly on that sqft that would normally be 620 umols without the overlap is the total umols just simple addition 680+620 or is there a more complicated formula for that? The reason I am asking if you take the monster garden pic and you overlap then it is at 1200 to 1500 umols on the overlaps if it is simple addition which is perfect at 24" w/ overlap. If that is the case then a 5² area w/ 4xLEC using a 55 gal res w/ 24 ebb buckets the simple solution is to leave the center sqft empty and have more areas that are between 1000 to 1500 umols...
I am probably over thinking this, however I want a well executed plan with design, methods, and procedures all mapped out before I take a dive into a circular process...
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THCbreeder
Well-Known Member
does it have any RF interference ?
Sire Killem All
Well-Known Member
Anyone have the part number for the single jacket 315
THCbreeder
Well-Known Member
Is this the 630w lec chart from them ?View attachment 3605689
I believe that is what monster garden posted on youtube for coverage looks like a 3x3 is covered real well... I am still very torn between LED and LEC.. Think I might go for 115w LED for a 2x4, and 4xLEC in a 5x5 that way I have overlap, and it also max's out 1 bucket brain... I can experiment with LED until some uvb led COB's come out...
View attachment 3605693
Most people will say you can get larger coverage, but I want more focused light plus 1260 watts for a 5x5 makes sense for me... The center might be a hot spot
Haven't heard that name in awhile. I bought a 100w setup from them when they were active on icmag years ago. I should see if I can get a replacement bulb.
CaliWorthington
Well-Known Member
I haven't read this whole thread, but if it hasn't been mentioned, Cycloptics puts a dab of high temperature aluminum paint on the tip of the bulb to prevent the hot spot from the beam shooting straight down.
If I try CMH I'm going with the hydrofarm/phantoms. As much as I love my COBs, I also like air cooling when it's not winter.
Or, I have this crazy idea to put COBs inside an air cooled HID reflector. COBs on round heatsinks, mounted on bars inside the hood. It could be done. Would be cool. Talk me out of this or I might start ordering parts.
If I try CMH I'm going with the hydrofarm/phantoms. As much as I love my COBs, I also like air cooling when it's not winter.
Or, I have this crazy idea to put COBs inside an air cooled HID reflector. COBs on round heatsinks, mounted on bars inside the hood. It could be done. Would be cool. Talk me out of this or I might start ordering parts.
CaliWorthington
Well-Known Member
The 315w CMH digital ballasts operate on a low frequency square wave (around 110 Hz) and supposedly have no RFI.
rocknratm
Well-Known Member
I dont see why it wouldnt work. Do it and show us!
Although my little experience with cobs is they have a very focused, tight footprint. Could be different depending on the build/ fixture tho
dbkick
Well-Known Member
Seriously why would you want put another piece of glass between your lamp and the plants.
Protected Mastercolor cdm already have two envelopes around the arc tube, that's why they're rated for open fixture.
If you're gonna put another piece of glass between your plants and cdm at least make the it the cdm which aren't protected and only have one envelope around the arc tube.
Protected Mastercolor cdm already have two envelopes around the arc tube, that's why they're rated for open fixture.
If you're gonna put another piece of glass between your plants and cdm at least make the it the cdm which aren't protected and only have one envelope around the arc tube.