this is way cool ,anybody see one in action?

[sfsuphysics]

FYI newest advancedaquarist has an initial review on the thing, although I am a bit perplexed as to how the author got to his conclusions on the PAR side since his data shows the LEDs vs a 250w 20kK MH and the MH showed to be spread out over way more area and had much higher par values (almost 2x as much in some cases) yet his conclusion was the LEDs were 89% of the par of the MH after doing a select sampling "for fairness"

 

[reefer on a budget]

<a href=showthread.php?s=&postid=7942067#post7942067 target=_blank>Originally posted</a> by -=Zepplock=-
do you know where to get that leds?

here are a few of the manufactureres to name a few. not sure if the deal with the end user since our requests are purely for development of future led driver products.

Lumileds
Cree
Nichia
Osram Optoelectronics ---sound familiar?
Seoul Semiconductor

 

[-=Zepplock=-]

<a href=showthread.php?s=&postid=7943616#post7943616 target=_blank>Originally posted</a> by sfsuphysics
FYI newest advancedaquarist has an initial review on the thing, although I am a bit perplexed as to how the author got to his conclusions on the PAR side since his data shows the LEDs vs a 250w 20kK MH and the MH showed to be spread out over way more area and had much higher par values (almost 2x as much in some cases) yet his conclusion was the LEDs were 89% of the par of the MH after doing a select sampling "for fairness"

250w MH vs. how many watts LED?

 

[sfsuphysics]

Here's the e-zine http://www.advancedaquarist.com/

They beta- product he did had 25 - 3 watt emitters so 75watts total (maybe a bit more since there's some down transforming from AC to DC current, of course don't know what those circuit boards do so they might waste a bit more energy.

 

[crazzyreefer]

so if I put 333 I could still use 1000w... Now how many will fit into my canopy?

 

[easttn]

Mount these to an aluminium plate and you will have excellent shimmer and blue light @ 470nm. Each LED is 16 lumens, more than 3 in a 180 would be a waste. Any 500mA transformer w/ a current limiting resistor will work. These are BRIGHT.

 

[fishnfst]

Check out www.candlepowerforums.com

My bro mods quite a few flashlights and the Leds are pretty cheap to purchase yourself.. Even the 1 watt led's are bright when used in multiples.... They come in many different color temperatures as well...

The cheapest are 5mm led's The larger the wattage the price exponetionally sp" increase.. I have a couple of 5watters and they are blinding.. The heat they produce is also quite impressive.... Most of the higher powered Leds are used in conjunction with large heatsinks