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

PetFlora

PetFlora

Well-Known Member
Chronikool said:
These would be better....more powerful diodes....5630's... you can get 2 for the price of 1...going on the prices at that LED wholesaler place...

http://www.aliexpress.com/store/product/18w-45w-1-2-meters-led-fluorescent-lamp-led-fluorescent-tube-t8-fluorescent-lamp/324109_725996185.html
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Hmmm, LEDWholesalers says 20w/ while your link says 15w/ when you select bulb type, +, how do you know what diodes LEDW uses to compare? AND...

whether the UL approval is worth $2/bulb

I like the idea of being able to run them nude, or covered: frosted should be good for side lighting. That said, do not see where one can choose clear or frosted
 
FranJan

FranJan

Well-Known Member
PetFlora

PetFlora

Well-Known Member
FranJan said:
Hey there you bulb growing maniacs, have you guys seen these?


Here's the link
http://www.ebay.com/itm/110V-AC-T8-48-20W-20x1W-Pure-White-LED-Fluorescent-G13-Base-Light-Tube-/230994158218?pt=US_Light_Bulbs&hash=item35c853228a

See these I like because they use standard 1 watters so it's pretty easy to change your spectrum a bit, unless you go too far and have to add a new driver. Still I bet you could find some 660/630s to drop in there without too much difficulty.
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Too bad CRI is only 70 lumen/watt, but we really don't know whether higher CRI means anything to PS

These have finned heat sinks (also in 2ft) http://www.ebay.com/itm/Lot-of-40-pcs-4FT-T8-LED-Tube-Clear-Lens-50-50-SMD-LEDs-Warm-White-3200K-/321080500935?pt=LH_DefaultDomain_0&hash=item4ac1e3a2c7

Pays to read the description: WTF? These tubes are EPS series tubes, which stands for External Power Supply. Which means that each tube will come with it's own driver. Winner will receive 40pcs. of 450-500mA driver per tube as well as 40pcs. T8 LED Tubes. To retrofit an old fixture, you simply cut out the old fluorescent ballast and replace it with our T8 driver.
 
hyroot

hyroot

Well-Known Member
I think higher cri promotes faster vegative growth. The Aq par t5 or led in veg kills hps and mh and reg t5. The first 2 weeks of flower. Ive seen mine take off faster and grow taller under a t5 and/or a 300w led with less stretch than a 1000w digilux. But bud size is about the same.





Stay frosty
 
FranJan

FranJan

Well-Known Member
PetFlora said:
Too bad CRI is only 70 lumen/watt, but we really don't know whether higher CRI means anything to PS
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OK ya lost me :) LOL. Where was the CRI listed? And I don't know what diodes they're using but even B+Y gives you a 80+ CRI. And they're probably running less than 70 lumens per watt but that's OK to veg with. And what's PS? Sorry I'm reeeeealy high this morning :).
 
PetFlora

PetFlora

Well-Known Member
FranJan said:
OK ya lost me :) LOL. Where was the CRI listed? And I don't know what diodes they're using but even B+Y gives you a 80+ CRI. And they're probably running less than 70 lumens per watt but that's OK to veg with. And what's PS? Sorry I'm reeeeealy high this morning :).
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PS= photosynthesis

70 lumen flux is listed under Specs

Have plenty of HHGs for vegging, looking at tubes to flower
 
PetFlora

PetFlora

Well-Known Member
Fresh Nutes ~ 800ppm @ 5.8

Damn, I wish we could decide which retro Ts to buy:wall:

Thought I settled on the ones with the finned heat sinks, but separate ballasts... why?
 
S

SnotBoogie

Well-Known Member
Yo Fran,

You can get those EXACT diodes (from appearance at least) on dx.com. Theyre like 5$ for 20 or something like that. I have about 100 of them in various shades of white, red, and blue.
 
Chronikool

Chronikool

Well-Known Member
PetFlora said:
Hmmm, LEDWholesalers says 20w/ while your link says 15w/ when you select bulb type, +, how do you know what diodes LEDW uses to compare? AND...

whether the UL approval is worth $2/bulb

I like the idea of being able to run them nude, or covered: frosted should be good for side lighting. That said, do not see where one can choose clear or frosted
Click to expand...
As we have learnt...more watts does not necessarily mean a better bulb. LED wholesalers states their T8's at: 288 SMD's...in my experience that is the 3528 used.

No option listed...but just ask and they will send clear or frosted..

Oh...and the lumens are inflated (as sellers tend to do) so take that with a grain of salt
 
Chronikool

Chronikool

Well-Known Member
FranJan said:
Hey there you bulb growing maniacs, have you guys seen these?


Here's the link
http://www.ebay.com/itm/110V-AC-T8-48-20W-20x1W-Pure-White-LED-Fluorescent-G13-Base-Light-Tube-/230994158218?pt=US_Light_Bulbs&hash=item35c853228a

See these I like because they use standard 1 watters so it's pretty easy to change your spectrum a bit, unless you go too far and have to add a new driver. Still I bet you could find some 660/630s to drop in there without too much difficulty.
Click to expand...
Thats the best one i've seen.... :)

Anyone want to get their handz dirty....?

http://www.aliexpress.com/item/T8-lampdimming-aluminum-plate-1w-high-power-led-lighting-beads-aluminum-plate-0-6-meters-0/966077445.html

Havent found the rest of the bits...

Dont forget Vanq's offering...

http://www.aliexpress.com/item/20w-tube-grow-light-G13-O-shape-t8-tube-grow-light-for-seeding-growing-flowering/913520100.html

And they customize to your specific specifics....:D
 
S

SnotBoogie

Well-Known Member
PetFlora said:
This looks promising. Can a combination with whites be far behind?

Wish I had the tools to turn 6+ of these into a engine http://www.aliexpress.com/item/2013-newest-factory-price-intergated-grow-light-chip-full-spectrum-30w-led-chip-for-greehouse-and/955307571.html
Click to expand...

Would be really easy mate, you can pick up soldering tools for next to nothing, i bought 2 irons for around 7$ each, solder is cheap as chips, the most expensive part would be adhesive/heatsink compound and the heatsink itself. Ive never worked with those module type designs but they look like a breeze since the contacts are so huge, no reflowing involved, etc.
 
FranJan

FranJan

Well-Known Member
^^^^Exactly Pet. Shit man you don't even need solder for those. Thermally conductive silicone, big chunk of aluminum, some alligator clips and some electrical tape. Add a driver and you're off.
 
S

SnotBoogie

Well-Known Member
^^^ Fucking worrrrdd, i misread the dimensions and thought they were a tenth of their actual size, and the contacts would STILL be huge :P
 
PetFlora

PetFlora

Well-Known Member
It's not assembly that concerns me. I don't have diagnostic tools to run down any problems, though not too likely. The question is how big does the heat sink/s need to be per 30-50w MCs? Check this out.

I thought of doing MC awhile back, attaching to heat pipes, but was told HPs do not dissipate well. If someone could put that to rest, I would consider proceeding.

http://www.aliexpress.com/item/Freeshipping-Cree-XLamp-XP-E-30W-Warm-White-3000K-Multichip-LED-Light-DC30-36V-1A-for/829711095.html


3 spectrums to choose from http://www.aliexpress.com/item/Wholesale-50W-high-Power-MCM-Emitting-Source-3500-4000LM-2-years-Warranty-Free-shipping/492199114.html

http://www.aliexpress.com/item/Freeshipping-30W-Cree-XLamp-XPE-2-Blue-3-Green-5-White-Multichip-LED-Plant-Grow-Light/829580476.html

If I find others, I will edit
 
S

SnotBoogie

Well-Known Member
I think Bumping Spheda started off by using off the shelf CPU cooling system (alu heatsink and fan), for computers, and mounted his multichips on that. then you just need a phone charger to power the fan and youre set.
 
PetFlora

PetFlora

Well-Known Member
SnotBoogie said:
I think Bumping Spheda started off by using off the shelf CPU cooling system (alu heatsink and fan), for computers, and mounted his multichips on that. then you just need a phone charger to power the fan and youre set.
Click to expand...
[You are probably referring to this: B]Bumping S[/B] said on another thread back in January If you are at all DIY oriented/interested perhaps read on. If not, sorry for the madman ramblings.

100W LED drivers can be had for ~$40
100W multichip LED's (same light source as what's in the flood lamps) are $10-$20.
A heat sink shouldn't be too expensive, or hard to find. You could buy a generously sized extruded Aluminum heat sink from
http://heatsinkusa.com/
or an active CPU cooler such as
http://www.provantage.com/enermax-et...ource=googleps
or
http://www.ebay.com/itm/120W-Multich...item3f1c0f7f43
These fans usually run 12VDC x 150mA, or similar. Little wallwarts can be found with these specs for $10, or better, ime. Hell, you might even have an old charger lying around in this range.
These are kind of expensive, but are literally a snap to wire everything up (ask the LED vendor to solder wires to the chip and you don't even need a soldering iron for this project)
http://www.amazon.com/Wago-222-412-L...d_sbs_indust_6

Pretty cool, but @ $35/cpu fan + MCs + drivers, it is a bit pricey compared to going retro T8s. Still, if $$$ was available, I would give it a go. Somebody should!
 
S

SnotBoogie

Well-Known Member
Yep, thats exactly it. What i mean to say is that they are a very, very simple and quick way to cool these multichips, could be suitable if you wanted to play around with them some.
 
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