LED Lab 2009

[Weezard]

Watts up!

Watts up!

"Am I wrong to assume that high of vF? Has anyone tested their UFOs with an ammeter or a kill a watt? TIA "

Probably.
The Vf for red leds usually runs much lower than for, say, blue leds
The low power reds run as low as 1.7V. Big-uns run from 2.2 - 2.7V
And yes I hooked a kill a watt to my knock-off.
Posted the results somewhere, then forgot.
I think it was around six hundred milliamps and change.

Oh, and they do use lensing in their leds to increase penetration.

Aloha,
Weeze

 

[SupraSPL]

I do recall a few posts that mention UFOs drawing much less than 90 watts, but I just assumed those were the rare exception of poor knockoffs. If they are only drawing 60 watts I would be much more interested in using one, assuming the driver has at least 80% efficiency.

 

[wintermute]

I do recall a few posts that mention UFOs drawing much less than 90 watts, but I just assumed those were the rare exception of poor knockoffs.

That would be a defective product! Most line specs I've seen for 90W (90x1W 7:1:1) state 0.82A @110V and 0.41A @ 220V.

 

[BurmeseDragon]

I sure don't know all your fancy technical mumbo jumbo soup! I know these green LED's do influence the plants, I haven't had any controlled grows to test stress limits. All light stresses us, most nutrients, it's a hard risk stressing just right. Why can't there be multi wavelength diodes? I know that is a hard one but it shouldn't be, with how the HID's function....on a different level having gas!

I know these grow lights don't like dimmers, these do handle but it's a problem with people owning ideas! Well it's good to have plants ease into stress and that is why indoors and outdoors is just that way!

It's more stress on the grower and that does slow down engineering, growing a pound of cherry tomatoes is not that neat inside........it's good in a greenhouse! Hot peppers, a lot of plants do stress other plants, not good to mix these up!

 

[wintermute]

Higher Efficiency Pulse Width Modulation LED Drivers

Higher Efficiency Pulse Width Modulation LED Drivers

Another one for the experiment list: 1.5MHz, 30A High-Efficiency LED Driver with Rapid LED Current Pulsing

More efficient than linear current regulators. Should increase LED lifespan. Less chromaticity shift for the Red/Blue LEDs. And cheap!

Now AC/DC conversion losses adding up. Maybe time to consider Kyocera 205 Watt solar panels for a truly Green and Off the Grid Grow...

 

[billyjojimbob11]

Would love the solar panels.

Heres a cola pic of the more crystals that came to be after the amber led.


The trichs may truley be responding to the amber light. Anyways, this one for WeeZ and Knna, and all of the progress of this forum.

 

[unthing]

Solarpanels, after that we only need some kind of guerilla internet-connection

Billybob, using more amber or same amount?

 

[billyjojimbob11]

Solarpanels, after that we only need some kind of guerilla internet-connection

Billybob, using more amber or same amount?

Actually this one had 2 more weeks with amber going, weeks 2-9, the others had amber only through week 4-9, they were already budding when I went from warm white to amber.

 

[billyjojimbob11]

Here's a thank god it's Friday led cola.



Size now has surpased my old 250 watt hps. Not bad for 112 watts of led eh?

 

[billyjojimbob11]

One more before congress shuts down our internets...

 

[Fafafooey]

dude, don't bother. Everyone knows LEDs cand grow weed!

just kidding, sweet cola.

 

[Weezard]

dude, don't bother. Everyone knows LEDs cand grow weed!

just kidding, sweet cola.

That's no cola Myte!
That there's a Sprite!



<Grins>
Weeze

 

[LeoRexTyrannus]

Wait... Billy what are you using? and wasn't someone completely happy with a grow they were doing with two TI Pro Blooms?

 

[pinstripe]

Excellent post, Pinstripe!

The folks over on Cdot could use your "precision vision", brah.
Thanks fo' da pearls.

Aloha
Weeze

Thanks, Weezard!
So you say they like lumens per watt on Cdot Maybe I could distribute 400lm/W systems for say $5 a piece.
How do you think this line would work: "Battery powered, no heat, virually no light or energy, TONS OF LUMENS per watt."

Billyjojimbob: Good job, awesome plants! I'm exited to see how the new amber, phosphor converted Luxeon leds will perform.

 

[dadda j]

I have been using a 300 watt pro illuminator it has 3 bands of light red blue and orange. I found it was very good for veg and i'm into the sixth week of flowering and my longest cola is 10 inchs long . Don't know what weight will be but im impressed. would like to here from more led grows.

 

[unthing]

dadda


Got any pics coming of that?

 

[mrred]

i seen 100 watt leds, 2700k color, or 5600k , what does anyone know about those?

 

[unthing]

Me, none, but I've heard that something like that could be used as stage lighting sort of stuff, big and probably very expensive. I've heard about 250 w led stage lights. Somebody could correct this if wrong.

 

[unthing]

Oh and it seems that ledengin now has whites(cool,neutral,warm) in 40 watt range.

 

[mrred]

heres a pic, looks serious