Calling out to Weezard for LED advice
Weezard, thanks for the reply. Looks like the smart money's on not using any resistors, but would you confirm I'm plugging things into the equations correctly, just so I'm not misinforming anybody? Still wanta grab some .47's "just in case." :D
Have you checked out the UFO version 3 or whatever he's calling it at HTG? Supposedly he's having these made for him with good parts, and there's a baby version, too. I've done business with this guy before and was satisfied he's a straight shooter. (I would normally be sceptical of stories like this.) :wtf:
High Tech Garden Supply
And, I saw your post on the UFO first grow thread. I would hate to jump in there and just seem critical but I'd like to see those plants in separate, small containers at this point. If he gets into drainage problems and/or gets his roots all commingled he won't do well; more food for the led sceptics.....:rolleyes:
Calling out to Weezard for LED advice
FYI guys:
"The LZ4-00R215 is not a standard part for us. We built one run of LZ4-00R215 and shipped to Mouser based on market interest at the time. Since the initial launch and after additional marketing research, LedEngin decided to not officially release the LZ4-00R215.
There is no technical hurdle in building the LZ4-00R215. If your application offers us enough volume, we can produce the LZ4-00R215 product. Can you give me some details on you application and anticipate volume?"
Calling out to Weezard for LED advice
Dang! I've killed so many of those things I feel personally responsible for pushing them to the brink of extinction. :( Looks like there's 38 left. The 10W deep reds are more expensive....:wtf:
Calling out to Weezard for LED advice
Quote:
Originally Posted by DreadedHermie
Weezard, thanks for the reply. Looks like the smart money's on not using any resistors, but would you confirm I'm plugging things into the equations correctly, just so I'm not misinforming anybody? Still wanta grab some .47's "just in case." :D
Spot on!:thumbsup:
Have you checked out the UFO version 3 or whatever he's calling it at HTG? Supposedly he's having these made for him with good parts, and there's a baby version, too. I've done business with this guy before and was satisfied he's a straight shooter. (I would normally be sceptical of stories like this.) :wtf:
I know what ya mean. It sounds like hype. But I've talked to Ryan and he seems sincere. Still use one of his 14W kits for clones.
On the other hand, he's tacking on over $100 in profit. There is a price difference for the right leds, but...
High Tech Garden Supply
And, I saw your post on the UFO first grow thread. I would hate to jump in there and just seem critical but I'd like to see those plants in separate, small containers at this point. If he gets into drainage problems and/or gets his roots all commingled he won't do well; more food for the led sceptics.....:rolleyes:
All ya can do is wait for him to read Stinky's stickies.
He didn't ask for growing advice, so I didn't offer any.
Some guys only learn the hard way.;)
He's smart enough to try leds for himself.
He'll figure out the grow part on his own or ask for help.
I quit "educating" people on my own initiative a while back.
Some swine will poo on your pearls.:wtf::D
Got a local grower that I tried to turn on to leds.
He practically snapped my head off.
Informed me, rudely that leds were a scam.
I just grinned and said you are probably right.
Now I only offer advice
to folks what asks nice.:)
Well, somebodiy's gotta support Hawaiian Electric company, ya?:D
Onward
Weeze
Calling out to Weezard for LED advice
at least not the Ryan from Home Grown Lights.
Quote:
But I've talked to Ryan and he seems sincere
This is an online hydro retailer--a big one. (HTG / HGL...cornfusing) Ryan's been MIA for awhile--no updates to the website, can't order anything...if I coulda bought a 50W kit of his (3 reds / 1 blue) I wouldn't have been pushed to DIY. Glad I did it, though. :thumbsup:
Quote:
He didn't ask for growing advice, so I didn't offer any.
Too late. :D I figgered if it was me, I'd want somebody to at least offer. I won't be offended if he blows me off, I just didn't want to offend him with unsolicited "suggestions." Tried do do it Socratic-like, which is not so different than the "Weezard way" when ya think about it. ("Think about it" being the operative phrase here.) ;)
Will have light tonight so I can do thermal checks. This heatsink ROCKS. :yippee:
Calling out to Weezard for LED advice
Quote:
Originally Posted by DreadedHermie
at least not the Ryan from Home Grown Lights.
This is an online hydro retailer--a big one. (HTG / HGL...cornfusing) Ryan's been MIA for awhile--no updates to the website, can't order anything...if I coulda bought a 50W kit of his (3 reds / 1 blue) I wouldn't have been pushed to DIY. Glad I did it, though. :thumbsup:
Yup got cornfused alright.
Didn't sound like the kind of thing Ryan would do.
In that case, It's hype.:(
There are several new UFO rips. some of them use 10mm. low power leds and a shiny cardboard reflector.
Re-packaged "china panels" basically.
The "good" knock offs run about $220.
Too late. :D I figgered if it was me, I'd want somebody to at least offer. I won't be offended if he blows me off, I just didn't want to offend him with unsolicited "suggestions." Tried do do it Socratic-like, which is not so different than the "Weezard way" when ya think about it. ("Think about it" being the operative phrase here.) ;)
:D:D:D
Will have light tonight so I can do thermal checks. This heatsink ROCKS. :yippee:
Might not need the fans!?
That would be sweet!
I actually own one of those snazzy tempguns.
great for reading leaf and res. temps.
But, when testing leds, I just "give 'em da finger".
Fast and sure. Saves the eyes too.:cool:
Those blue leds are a danger.
Human pupils don't contract like they do with white light, and the narrow bandwidth allows tight focus on the retina, even from the side.
I had "barneys" for two week from my first Hipower blue leds.
Went to the eye guy and he told me "don't do dat"!:)
"Turned me into a newt":smokin:
"I got better":D
Weezard
Calling out to Weezard for LED advice
Quote:
Human pupils don't contract
Dang these human pupils! :D(Thanks for the warning, I remember your other one.)
Weezard, ready to connect 2 blues to the 60-15. I have it dialed in to 14.78V with no load (except the meter). I don't need to set it running into a resistive load or anything, do I? CV should find a way, right? (I've got the current all the way up.)
Quote:
I've been running 13. 5 Watt leds from my Mastech for months with the supply on a timer.
Keep it set at 12.6V 3.4A.
Wanted to ask about this, too. Do you have it set at 12.6V and current all the way up (the array draws what it can @ that voltage) OR do you also have the current knob turned down so the PS can't exceed that current? Thanks! Hermie
Calling out to Weezard for LED advice
Quote:
Originally Posted by DreadedHermie
Dang these human pupils! :D(Thanks for the warning, I remember your other one.)
Weezard, ready to connect 2 blues to the 60-15. I have it dialed in to 14.78V with no load (except the meter). I don't need to set it running into a resistive load or anything, do I? CV should find a way, right? (I've got the current all the way up.)
Leds are current devices.
Use the constant current setting and the voltage will take care of itself
Wanted to ask about this, too. Do you have it set at 12.6V and current all the way up (the array draws what it can @ that voltage) OR do you also have the current knob turned down so the PS can't exceed that current? Thanks! Hermie
Current locked at 3.4 A. the voltage is set to just below the theoretical maximum for my array. Long toed 15 volts. but it only requires 12.6V. to push 3.4 amps.
Remember this is a constant current supply.
Calling out to Weezard for LED advice
Weezard, I got sidetracked there for awhile. I decided to test my test leads, which are like 25 years old and not as heavy as they should be to do this kind of work. One of them had become intermittent inside the banana plug, and went completely and permanently open as I was examining it.
This sucker has been coming and going for a long time. I was thrown a red herring with the display on the Fluke. (You don't think a goof like me would normally have a prize like an 87, do ya? :D) The display was going out and the guy didn't want to be bothered with fixing it so I took it off his hands cheap. ;) When I finally got around to replacing the display I'd noticed some erratic readings but figured I had just been misreading the display (not all the segments were working).
So I've been zapping the leds with an intermittent connection. Plus rudely starting and stopping them. Feel kinda silly, but who tests a test lead? :wtf:
Onward.
I have the 4 reds @ 10.6V wired to the mastech. I'll run the others with the 60-12 at ~ 10.8V. Getting close, can't wait to see how this sink does.
Calling out to Weezard for LED advice
Quote:
Originally Posted by DreadedHermie
Weezard, I got sidetracked there for awhile. I decided to test my test leads, which are like 25 years old and not as heavy as they should be to do this kind of work. One of them had become intermittent inside the banana plug, and went completely and permanently open as I was examining it.
This sucker has been coming and going for a long time. I was thrown a red herring with the display on the Fluke. (You don't think a goof like me would normally have a prize like an 87, do ya? :D) The display was going out and the guy didn't want to be bothered with fixing it so I took it off his hands cheap. ;) When I finally got around to replacing the display I'd noticed some erratic readings but figured I had just been misreading the display (not all the segments were working).
So I've been zapping the leds with an intermittent connection. Plus rudely starting and stopping them. Feel kinda silly, but who tests a test lead? :wtf:
Funny you should ask that.
Me, that's who.
Had a similar problem with my Fluke.
Had to buy new leads to finish my light.
Onward.
I have the 4 reds @ 10.6V wired to the mastech. I'll run the others with the 60-12 at ~ 10.8V. Getting close, can't wait to see how this sink does.
Just placed an order for 10 deep red 15W. Ledengins.
Ya got me goin' again.
Did you ever find a source for lenses?
Weeze
