Does adding CFL to red/blue leds hurt the PAR?

Thinking of doing half the total wattage in led (red/blue) and half with CFL's would the white wavelength from the cfl's mess up the whole PAR thing?

It wouldn't have the pinkish light I see (just about) everyone else doing but it (the red/blue wavelengths) should still be there right? just harder to see with the human eye.



/edit probably going get two of those 50~watt COB's(?) instead of cfl but cfl is what I have atm.

No probs at all, just watch the heat and you will be good.

Thanks.

I just set up the CFL's seems to be about the right amount of light but at some point I'd like to replace them with 20-50w COB's just got to find a place that sells them.

http://www.ebay.com/itm/380717150104?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 if u dont Need Ultra Efficiency and cree and whats not

I have used (am still using) the 50w multi-chips as Lax pointed out....and while they work I would advice something like this to get started....

http://www.aliexpress.com/item/50W-50-Watt-Cree-XT-E-Natural-White-4800K-XTE-High-Power-LED-Light-DC-30V/1396884388.html

I'm sure the cree version is better but it's like 50% higher cost :/ seeing how I could use 2-3 the cost would add up.


$6 - 50w multi chip
$13 - driver? http://www.ebay.com/itm/50W-Watt-High-Power-LED-Driver-AC85V-265V-50-60HZ-Waterproof-/160927171811?pt=LH_DefaultDomain_0&hash=item257801c4e3
$2-3 - thermal glue
$8 - 45mm lens?
free - CPU heatsink
total- $29ish

$30 - 50w cree
$13 - driver? http://www.ebay.com/itm/50W-Watt-High-Power-LED-Driver-AC85V-265V-50-60HZ-Waterproof-/160927171811?pt=LH_DefaultDomain_0&hash=item257801c4e3
$2-3 - thermal gule
$8ish - len's?
free - CPU heatsink
total- $53ish

id imagine the cheap cob could be even more efficient, as it consists of like 50x 1W smaller Chips clustered together...but ist more of a Blackbox regarding spectrum, longterm stability etc...you should look for other sellers that sell those and fetch their data, if they provide more. I went for 8x 30W cobs (4xWW,2xW,2xRed).

Limbistic said:

I'm sure the cree version is better but it's like 50% higher cost :/ seeing how I could use 2-3 the cost would add up.


$6 - 50w multi chip
$13 - driver? http://www.ebay.com/itm/50W-Watt-High-Power-LED-Driver-AC85V-265V-50-60HZ-Waterproof-/160927171811?pt=LH_DefaultDomain_0&hash=item257801c4e3
$2-3 - thermal glue
$8 - 45mm lens?
free - CPU heatsink
total- $29ish

$30 - 50w cree
$13 - driver? http://www.ebay.com/itm/50W-Watt-High-Power-LED-Driver-AC85V-265V-50-60HZ-Waterproof-/160927171811?pt=LH_DefaultDomain_0&hash=item257801c4e3
$2-3 - thermal gule
$8ish - len's?
free - CPU heatsink
total- $53ish

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i know what i would rather have over my plantz for a measly $24 more....

Can someone explain these to me? Cant find an all encompassing thread on thr Cree's. Most use chinese LED which is now help. I wanna build a bunch of 100w (2-50w, or 4-25w, best spectrums seem to be the 2700k and 3500k, I'd do one of each, or 2 for 25w'ers)panels over the individual scrogs in a 10x5 tent. I wanna understand this and do it for myself because I like tinkering. But I dont understand it. What is COB? Can the driver if its a 50w max driver, just plug directly to the LED, then mend the 2 driver leads together, to an outlet cable? Have like 100w, spaced with another 100w mended to the same outlet plug, 2(100w's) per outlet plug. Does it work like that?

A panel to hold it together, a heat sink mounted to each one, a driver connected to the Led, and the leads connected to an outlrt plug in correct fashion? If so I'll do that myself. I just dont exactly underatand it. I doubt I'd need a driver fan being a 10x5 tent, heat dispersion should be fine enough in that tent.

What is COB?

Click to expand...

if you type cob led/ chip on board in Google...

Can the driver if its a 50w max driver

Click to expand...

make sure its a constant current Driver and the constant current fits to your led -must not be higher than allowed. Its pretty easy. But as those cobs/ led cree Arrays produce a lot of heat etc you Need to make sure they are very tight on the heatsink. so you should get a drill and a thread drill, to be able to screw the cobs to the heatsink, and you Need thermal compound in between. Depending on your heatsink you might also Need a fan /pc fan to actively cool the heatsink. i

know what i would rather have over my plantz for a measly $24 more....

Click to expand...

i wanted to buy exactly those cree modules, but then someone suggested me cobs and i looked at their Efficiency and whats not...

lax123 said:

i wanted to buy exactly those cree modules, but then someone suggested me cobs and i looked at their Efficiency and whats not...

Click to expand...

What you have linked back there are not COB's....they are SMD multichips.

And efficiency is one thing....but it will not grow you better plants...

oppsss and now for months i thought those r cobs one Thing i know for sure, they hurt my eyes and thats supposedly a good Thing

....and while they work I would advice something like this to get started....

Click to expand...

whats ur experience? im just seeing ur grow in ur signature but its freaking 47 pages did it not work as good as hoped for?

So yeah...its long and full of rambles....personally i wouldnt read it...

No the multi-chips were/are good. i've been running them for over a year in my veg and flower cabinets. They are currently just running my veg cabinet in various capacities (10w...over top of my cloning station....30 and 50w over my mothers and vegging plants) In my flowering cabinet i have XP-G warm whites 50w panels...i had better yields and growth under them as opposed to the multi-chips.

Now not saying that the multi-chips are crap...they do grow stuff...i just personally like the crees better...but having said this....this is in my setup and is no doubt completely different to yours....So yeah just adding my opinion to something as i believe i qualify to answer the question: 50w multi-chip vs 50w Cree...My chance to shine if you will!

Im currently undergoing a few changes in my flowering cabinet...more cree multichips and other mundane 'Chronicrap' to market on the RIU crew...New thread to be started in the new year.

A true LEDHEAD is never satisfied with their setup....