1 LED = 1000 Lumens!

This is great news. Think about it. Durable light weight led video lights. No heat, long lamp life, inexpensive power uses and while we're at it lets through in a great dimming switch.
 
Yes we've talked about these before here. I have an 1800 lumen 60w single LED I got from Taiwan, but its just an expensive toy right now. It's only 30 lumens per watt. I was going to make a small pepper fresnel but it's just not cost effective when even a 150w CMH fresnel like the one I'll be offering soon can beat it in price and light output by a long shot. We've seen a 100w 3000 lumen LED also, made here in China, but I have serious doubts about its reliability.

1000 or 1800 lumens isn't a lot and the heat is very intense. In fact, you need a pretty good heat sink on these high power LEDs to keep them alive. Even the Cree one will require a lot of heat sinking. So don't think of these as cool lights as in "fluorescent cool." Its more like "HMI type cool" where the light is cool but the source is very hot. There are other issues too surrounding integration of LEDs with reflectors and the ability to build them into the kind of lights we would like to use.

Just to compare, a small 300w tungsten fresnel puts out about 6000 lumens. A 650w fresnel puts out about 13,000 lumens, etc. You see, we're still a long way away from obsoleting tungsten, fluorescent and HMI which are far more efficient than most LEDs and more cost effective too.
 
As my partner pointed out to me there is a problem with the math claimed by the press release...either the lumens-per-watt is incorrect or the number of amps the LED draws is incorrect. Both claims can't be correct. It can't be both because the numbers conflict with each other.
 
Prodigi Pictures said:
As my partner pointed out to me there is a problem with the math claimed by the press release...either the lumens-per-watt is incorrect or the number of amps the LED draws is incorrect. Both claims can't be correct. It can't be both because the numbers conflict with each other.
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Not trying to be rude, but I don't see the problem with the math. 72 lumens per watt at 4 amps is about 3.6 volts - a pretty reasonable drive voltage for a single LED.
 
I have the cree upgrade for several of my Surefire tactical flashlights. They are a SIGNIFICANT upgrade in light output and quality.
 
Angus_Findlay said:
Not trying to be rude, but I don't see the problem with the math. 72 lumens per watt at 4 amps is about 3.6 volts - a pretty reasonable drive voltage for a single LED.
Click to expand...

Yes, that's right the input voltage is 3.6v according to what I see there and given 72 lumens per watt and 52 for the warm white one. It's unusual because most of those types of LEDs run on 12v or 24v. The model I have runs on 24v in fact.

30LPW is far more common on the high power ones and it takes a while for these higher quality / higher LPW models to make it out of the experiment lab and into the market at reasonable prices. In addition, they all get very very hot so are not a total cool light as some believe. In fact any of the high power LEDs of 1w and above need some kind of heat sinking to keep them going.

Those are the main points on these.
 
mcgeedigital said:
I have the cree upgrade for several of my Surefire tactical flashlights. They are a SIGNIFICANT upgrade in light output and quality.
Click to expand...

Yes they are getting better for sure. When the mainstream models hit 72LPW and the prices are closer to other kinds of lighting then LEDs will become a serious alternative to the other things we use for higher lumen output now. But, we do need a single source LED in the 48,000 and above lumen output range to make some serious lighting instruments that can compete with the larger wattage HMI 575w or 2000w tungsten units. That is, unless someone can come up with a way to make several smaller wattage unit all function together as a single point light source all focusing into a single lens. I've looked at the problem and haven't seen that way yet but perhaps someone else will come up with a way. The likelihood that that would be a compact instrument is pretty slim at this point though.
 
Hi J,

I can't get to that link where I'm at. Must be too good ;-) so its been censored. Anyway, what is it? A new video/film oriented LED panel?
 
Here you go Richard.

nila.jpg
 
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Hi Luis,

Whatever it is isn't showing up for me here. Your post is blank for me except for the text "Here you go Richard". Very strange! Maybe a name server thing where their host is not propagating to China.
 
Yeah, wild isn't it? I see that occasionally where someone embeds an image in a posting but it doesn't show up because the named server doesn't get propagated over here for some reason. For the longest time, Filmtools.com didn't propagate over here and then all of a sudden one day it started working. Same with wikipedia. Just started working one day.
 
They are not for sale yet, but there is a lot of buzz. Those things are LED lights that put out as much light and punch as a 1,200 HMI - no kidding.

I will PM you some text from the site.

-J
 
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