LEDs Stripping Back the BS. Vegging 6 Clones under 22 Watts

Looking good, read some of your thread responses - led me here.

I used to grow under a large array of lighting. I don't have that equipment anymore and I'm starting over with cfls in a closet. Waiting on clones now. I may need advice on feeding/medium its been awhile and I've never done hydro or dwc which I'm considering ...interested to hear what you would suggest for my current situation

Edit: clones are being rooted in water, also something I've never had to replant in soil

Been busy manicuring/trimming harvesting the last 2 HOT5 plants, PLUS, making up new 1 liter APs for the 2 largest clones. Doing so allowed me to get more light to the other 2 clones, plus I moved the Monster Cropped clone from the window into the clone bubbler

Another Hydro Halo video- In this one he mentions using a higher gph pump!

I have parts on order. Will probably start a new thread once I get them. Title 21st Century Drip Using 320 GPH Pump.

https://www.youtube.com/watch?v=9e5fSM_SNkU

FYI If you haven't been following along, I hooked up the Halo Drip Ring system in my HOT5 tent. Some very interesting early observations. Hope you check it out and sub.

The led clones are doing well (see pic), no more hand feeding, which means roots are getting established close to the moist lava rock.

Time to increase the watts, so I replaced the 12w 5000K Bright White EcoSmart (had it in the center) with 2 Cree WW @ 9.5w, using a splitter



Yep, cfls now used to upright a leaning stem

Hey Pet...nice haul of 4.29 ounces...got any dry nug shotz for us to perv at? I am no longer a 'completely white man'....660nm has been added....you will have to carry the torch for your new grow....

C'mon man when are you gonna build some custom bulbs? Have you seen those kits? I keep seeing them and keep thinking they're perfect for you cause they fit what you're trying to do, keep the costs down because they're not that expensive at all and you can use the LEDS you want, (CREEs, Osrams, Nichias, Bob's), not the ones you get . They look simple to put together, probably 10 to 20 bucks a bulb and you got the support group to help with the circuitry. Could be an interesting way to go. This is just an example and sorry if the pics are effed up.






Install a little driver like this inside, or you could figure out a way to power several with a remote driver,



then slap on the diodes you want, which you could probably just use thermal adhesive if you don't drive them too hard and you're done. It might take some time to find the right bulb kit and driver, but it be worth it for you in the long run if you want to keep experimenting/growing this way. Just a thought. Happy Growing PF.

PetFlora said:

There are way too many technical improvements being made in all phases of LED tech to spend MY $$$ just now.

Click to expand...

...

Good point.....im still waiting for someone to improve on the wheel so i can finally buy a bicycle...

Yeah they're kits to make your own bulb. That one is 5 x 1 watt capable so 2 NW, 2 WW and 1 wide-band 630 for you, right . And they're cheap and getting cheaper, so on a small scale I feel they could be very effective testing out certain LEDs without buying the farm. But whatever floats ya boat PF. And "mc" diodes? I missed that one it seems or I just don't get that slang you kids speak today.

Heat pipes do not dissipate heat ,if you meant something like that ...
Neither they are used for actual cooling ....

What heat pipes do is conduct / transfer the heat from point A to Point B.

(I.e from a led heatslug to a 'remote ' heatsink ....)

Heat pipes can not be used for cooling ,just by themselves ....


( WTF ? Do I just love being a 'wiseguy' - 'smartass ' all the time ? .....)

stardustsailor said:

Heat pipes do not dissipate heat ,if you meant something like that ...
Neither they are used for actual cooling ....

What heat pipes do is conduct / transfer the heat from point A to Point B.

(I.e from a led heatslug to a 'remote ' heatsink ....)

Heat pipes can not be used for cooling ,just by themselves ....

Click to expand...

How about Thermoelectric cooling?
http://www.electronics-cooling.com/1996/09/an-introduction-to-thermoelectric-coolers/

PetFlora said:

I suspected as much. So why doesn't someone make a mc (multi-chip) board that drops in?

I can tell you from my experience using both the 22w Utilitech and the Philips 17w, that the passive heat sinks get pretty damn hot, so I think we are at the limits of passive heat dissipation for globe bulbs.

I still think the easy and cheap DIY is heat pipes plus mc (multichip) diodes (hopefully they were designed to disperse ~ 100w) . At some point I will inquire as to how much heat they can comfortably dissipate

Click to expand...

Well they sort of make a drop in multi, they use the new multi chip design called COB (Chip On Board) LED, though I haven't seen a straight up bulb kit they're probably out there and I've seen bulbs that use them. Basically it's a multi chip design that's easier to cool. You're gonna like COBs I bet PF since they also are better at blending light because of the compactness of the LED die. Lots of intensity. We'll probably be using them real soon. I was thinking of getting some instead of the XP-Es I got but I figured I'd skip a generation or two and see how much better they get. The one's CREE make probably work for us but $$$$ (relatively speaking). And don't think of passive cooling as peaking sir, think that if you improve the LED you'll reduce it's cooling requirement and produce the same light. Bulb designers hate active cooling. To them it means there is a design mistake, (see Lenk and Lenk on Led Design, Schubert, et al.).

Those barebone household LED kits would incorporate these aswell....

http://www.aliexpress.com/item/7W-COB-surface-light-source-LED-bulb-LED-Downlight-LED-Spotlight-genuine-Taiwan-chip-Free-Shipping/715565379.html