Led exposure unit?

[screenprintguy]

I don't understand unless it's a specially kind of LED, how you could expose emulsion with LED lights. My new screen room and imaging room is all LED bulbs, nice and bright, and no effect what so ever on un-exposed screens. I've even left them on for 4 days straight with screens sitting out and no effect at all, since, an LED, light emitting diode emits zero UV, unless there is a different kind of LED.

[ebscreen]

They're pushing LED grow lights for indoor cultivation of, uhhmmm, tomatoes, out here in CA.
Plants enjoy a similar light spectrum as emulsion requires.

[alan802]

Why the F am I just now seeing this thread?  It's been around for months...



strange things.

[ScreenFoo]

I get the feeling this is just more drama.
Just read this on TSF:
"LOL


You all seem to be talking like you know all about this topic, yet none of you really do. Do you?

Hard to teach people who think they know....

The fact is this unit is in the field, and crushing all other exposure units..

My customers love it!
I go out of my way to make sure of that.

If you want more FACTS find me on the other forum I'm on.
This forum stopped you from seeing this product for about a year now...SAD indeed..."

Sooo.... apparently, any unit fools like us are using for exposure is currently being crushed... although there is not yet any hard evidence to back that up. 

[inkman996]

I get the feeling this is just more drama.
Just read this on TSF:
"LOL


You all seem to be talking like you know all about this topic, yet none of you really do. Do you?

Hard to teach people who think they know....

The fact is this unit is in the field, and crushing all other exposure units..

My customers love it!
I go out of my way to make sure of that.

If you want more FACTS find me on the other forum I'm on.
This forum stopped you from seeing this product for about a year now...SAD indeed..."

Sooo.... apparently, any unit fools like us are using for exposure is currently being crushed... although there is not yet any hard evidence to back that up. 

Lets give him the benefit of doubt and tell him he should contact some of these satisfied customers to come on here and talk about the unit. If there really is competition crushing units out there in custys hands  and strangely no one here ever heard or seen one then he should get some "Back it up" info going.

[alan802]

As long as the light is in the optimum spectrum and doesn't have any real gaps or deficiencies on coverage I don't see why this wouldn't be great.  Better than a 10K metal halide?  Debatable I'm sure, but it has to be better than the flouro units assuming the light isn't too focused or too diffused.  We do need to hear it from someone besides the proud guy that is selling the technology though, hopefully he won't feel disrespected by us wanting that. 

[Frog]

We still permit product promotion here, along with links as well as links in member signatures. Apparently, some forums only permit paid ads.
Otherwise, just like all artists or printers or suppliers, or other equipment manufacturers, except those banned here for previous wrong doings are always given the benefit of the doubt, welcomed here, but are also subject to the same scrutiny as anyone else, even the big boys who don't perform.

Hopefully, we'll get some real world feedback.

[screenprintguy]

Like I said, I wasn't knocking it, I just don't under stand it, must be a totally different form of LED than the LED light bulbs I am using to light up my screen room. The do not expose a thing even if you lay one right on a screen for a day nothing. What's a link to the product, I'd be interested in looking at it rather than be called a fool by someone on a forum because I don't under stand it and don't have a clear link to the actual product. That would be helpful. 

[Frog]

LED's like fluorescent tubes or various incandecent bulbs come in many flavors.
As eb pointed out, UV led's are not uncommon in certain circles. They can apparently be tuned and made to whatever wavelenth is needed, and for these grow operations, their biggest selling points are low power consumption and much less heat.
Perhaps the exact specs of these LED's will be made available for those who both crave and understand the technical aspects of this.

[Binkspot]

Frog beat me to it, LED's can be configured to emit different wave lengths of light. I do know they are used for UV cured inks.  If memory serves me right that's how they change the colors or LED's, not colored lenses but the wave length of light. Who knows maybe the LED can emit the best possible wave length for emulsion. What we forget its a spectrum of light we can not see with our eyes that exposes the screen but associate the intensity of the light with how good or bad it is which is wrong. Some one may look at one of these and just see little white dots with the naked eye but what we can not see is the waves that actually cure the emulsion.

[Dottonedan]

It was a post on t-shirt forum.com (hope it's ok to mention them here) a guy built one and is having good results after that post it put me on the road to researching the Cree LEDs and what they are capable of.

It's more than ok to mention them here. We are not against any other forums. I even contribute on T-shirt Forums now and then.

[LDTRONIX]

Allot of questions...

The one I found most important was "Why did I not see this thread before.. " 
Well it is because I was on another lesser Forum that kept deleting my post.  (due to forum rules)
Allot of miss information was given there, at one point they were telling members LED's flat out do not work....  IS A LIE!  They work!
Truth is it is my fault...
I should have been telling the good members of THE SHIRT BOARD. 
Theshirtboard.com,  Where rules never get in the way of progress.
I am now a proud member of this GREAT FORUM, and I plan on being here for a while.
I am not sure how to address the skepticism, but I do understand where it is coming from.
So how can I prove to this Forum what I, and my customers already know.
As I always say
No information is better then bad information.

[DannyGruninger]

I've got an idea, send me one of these little joe's and I'll do some real world testing and let everyone on this forum what the scoop is, lol. 

I'll even do a video of the process and compare it to our ever trusty tri light exposure.

[Hegemone]

LD, Have you considered sending one of these units to one of the members of the forum to test and report back. There are some sick printers here that could give us all some solid unbiased information on your unit and it's viability for production as well as return on investment. I am sure we could all chime in and nominate a forum member with a proven track record of constructive contributions to the greater good of the forum and the industry in general.

[Dottonedan]

A testimony from a current owner would be great. Call them up and ask if they would do a quick vid of some sort and post it on youtube and post the link here.


T_shirt forums is a good guy for the target audience. The owner Rodney is a good guy. He does have some strict rules on self promotion. We have rules here as well, but a little more relaxed that his. Maybe tougher in other areas.  One thing we try to avoid here is talking negative about people, products and services. We simply try to state the Pro's and Con's and provide proactive feedback like many you've already seen.