LED vs. HPS - veg to flowering using LED

[HeadMed]

Originally Posted by Boss

Ditto :-)

I Await they day I will have swivel mount spot LEDs I can point at my buds :-)

Not hard to fake if you have the access to the super bright LEDs. HD has cheap under cab lighting kits that swivel and spot ... just replace the bulbs...

[HeadMed]

dava04,

I had heard that there were some patent issues? The spectrum output of the LEDs are very specific and Hollywood studios had patented many of the useful make ups (LEDs with our wanted spectrum's), as they were developed for set lighting etc. I know they don;t have all of them, NASA's been working on LEDs for decades. But I wondered if you had run into any problems? Also, being a manufacturer, is it possible to order lights pre-soldered into a board, without any housing?

[dava04]

Hi, patent issues, there is some lawsuit the American LED producers are trying to file against Chinese manufactures attempting to get China to produce under American license, but frankly its madness.

Also not to sound rude, you can't patent light and wavelengths as they have always been there, only the method and there are many methods of actaully passing current over silicon to produce light, so you can buy an LED in any wavelength you desire there is no problem.

Yes, you can purchase LEDs solidered to the board, however the quantites I'm sure would be out of reach of the casual grower.

[Boss]

Maybe I will open an LED distributorship when I move. I think I know some people at Sanbor that can help.

Thanks for the info dava, very much appreciated :-)

[HeadMed]

Originally Posted by dava04

Also not to sound rude, you can't patent light and wavelengths as they have always been there, only the method and there are many methods of actaully passing current over silicon to produce light, so you can buy an LED in any wavelength you desire there is no problem.

MY understanding of the issue was that it wasn't the wave length (of course) that was patented, but the makeup of the Diode that produced the particular wave lengths...

[Boss]

Plasma produces the color spectrum in LED's. The variation of particles in the plasma creates different color plasma. I suppose they could need different ignition systems, but to my knowledge, it is just an electric field created to excite particles.

[Medical Marijuana]

Originally Posted by dava04

Dear all,

As a manufacture of LED in China I maybe a bit biased here, also I don't grow weed so feel free to dig or ask questions, but time for myth busting.

The LED can replace HID HPS etc no problem, yes cost is high but you have to remember that the lumen out put is at least 3 times greater than HPS. HID or florescent. This means that you can use 3 times less lumen, so if your HOS is 2000lm then a 600+ lumen light will do the job.

This said Lumens are misleading and the real figure you should look at is LUX this is lumen/m2 and gives a better comparison.

Further more the difference between LED light made from small leds and power leds is great. Power LEDs are, more powerful, typically about 70+ lumen per watt, one bulb can be 1 watt or more, yet there is an issue with the heat produced and they are expensive.
Lights are also made with small leds, less expensive and no heat problem, when building your own pay attention to MCD, the brightness of the small led, bigger is obviously better, your typical decorative led is useless, special small leds go up to around 20000mcd which decorative are needed about 2000mcd.

As coverage you need to pay attention to the angle of the LED, most standard LED, like the one you put in your car for the sake of beauty have only a 30deg range, not useful, however you can have up to 120 degree, useful.

Someone mentioned that they need to be close to the plant to penetrate, while I'm not so sure about that, I would say you all have lights on adjustable chains anyway so whats the deal.

The most important thing colour, LED colour is stipulated via nanometer, its a semiconductor after all so its accurate. Whats the plants favourite type of blue, find the exact wavelength and go buy that wavelength LED, same for the red, it must stand to reason then that the yield will be much higher.

Finally safety, no heat, no aircon, no hot roofs for the police to see in countries like the UK, also much lower electricity bills, no aircon bill, and LED save atleast 70% on normal bulbs, do the math, the lights pay for them selves in about a year or two even at today's price, good quality lights should last at least 10years.


Feel free to PM for more info or if you have questions.

Hope this helps.

Wow mate, to have a manufacturer of LED's here with us is fantastic. Please post as much info as you can in your own product review thread. There is a lot of interest in LED's and ANY detailed info you can provide would be fantastic. Are you up for that?
Thanks again for contributing!

[dava04]

Morning, I haven't had a good smoke since the last time I was in Laos, Its all bush weed but it isn't bad and you can buy large bags for 1 or 2 dollars, not bad!

To JTBronco, you are definitely right, it isn't the wavelengths that are patented, but the methods, but there are many methods of producing the LED as it has to do with the variety of silicon you use, the doping (no really, they add another isotope to the silicon to create a few extra electrons so making the semi conductor and its called doping, there are many isotopes) agent you use in the silicon and then the amount of current you pass through, so there is no problem.

To Boss the colour is produced in an LED via electricity passing between the anode and cathode inside the LED at the tip, if you look inside an LED you can see a space at the top with a little square in it that square is the silicon, the silicon is responsible for the colour as you use various type of silicon, with various semi conducting properties for the various colours, LED/Plasma and LCD are not the same, although the LED is used as a back light for the TVs.

To Smokin *****, there's a product review thread? That cool, I was worried about posting in the first place, as the moderators may think I was just plugging my products, but if there is a place for it, ha, then I will put some stuff up when i have time, possibly Sunday.

I'm possibly being ignorant, so apologies if this is so, but compared to building a HPS or more traditional setup, building and LED grow set up should be much easier, no aircon/heat worries, what do we think?

My goal was to add real information to mix, to generally educate the market as places like the Netherlands are a huge potential market for LED's, due to the fact that you can legally grow herb, I would love to find distributors there!

[dava04]

Also forgot to mention there are also LED florescent tubes now, obviously any colour is available, but you can just swap out directly your T5 or T8 Flouro tubes with tubes that have LED of what ever wavelength you want.

Pretty cool hey!

[Medical Marijuana]

As long as you are posting info rather than plugging your company, all input is welcome. There is also the possibility of you being a sponsor, and that would really get your message out. Here is a link to the grow product review sub-forum. Grow Supply Product Reviews - 420 Magazine

[Boss]

So you are saying that they do not use an electric current passed through very small particles? I must have them confused with a video I watched on new led streetlights.

Ahh, ok, I gotcha. Instead of being suspended, the material is placed in silicon. Gotcha, sorry, I'm consistantly out of my mind, visiting other places .. LOL

[dava04]

You were also talking about Plasma as well though, and while I know nothing about Plasma, I do know there is light and particals involved, in the way you where describing.

LED's are really simple, the anode and cathode are sealed inside an epoxy resin, with a piece of silicon wired to each end of the anode and cathode, the current passes over the silicon and you get light.

As with many things Wikipedia has a great artical LEDs.

I understand completely about visiting other places, ah too be 18 again!

Not that Im old, far from it, just have to be vaugly responsible now

[Medical Marijuana]

Wow, this is becoming a great tutorial. thanks guys.

[dava04]

Yeah, I have just watched that video you are talking about Boss, thats a bad ass HID light.

Also that large picture of the purple LED you have posted is awesome, close and clear, I did edit a vrsion for you but i cant seem to post pictures :( with this reply.

Smokin ***** told me how to do it, but i think im too hung over and retarded to figure it out.

[Boss]

Maybe this will help.

http://www.420magazine.com/forums/42...ad-photos.html