Coral LED lighting ( natural Sunlight )

[Rocketman]

Any reason why I can't make up additional LED lighting ( similiar to the moonlighting I just made up ) for daylighting ?
If I use a mixture of LED's with different wavelenghts ( to create natural sunlight ) .
LED's are reasonable cheap enough to give it a go .
This would be in addition to my tanks existing PC lighting .

[funkybozu]

you could probably make a board with leds to get what you want but
normal leds ant really bright or powerfull enough to puch through water
for it to be bright enought you would need a lot of leds. i did the calculations once, and the wattage /Lums output just didnt add up, MH out perfored it by far!!
but there is now these super leds out that could make it work maybe
i got a torch(super led) 1W thats 50 X brighters than a normal led
i know they make them up to 5Watts,so is someting to look into i think

[Rocketman]

any ideas of what type of LED's your refering to ?

[funkybozu]

any ideas of what type of LED's your refering to ?

this is what a super LED looks like
http://image01.conrad.com/xl/1000_1999/1700/1760/1761/176160_BB_00_FB.EPS.jpg

these LED are incredibule. but most dont have any UVs

[Doctor_Reef]

Wow...that even hurts looking at it in a picture!!!! :lol:

[2639]

I have a degree in electronics and I've never seen those! Nice!

[Sugar Magnolia]

WOW funnky! hHose are really bright!

[Solarflare8806]

that thing looks like something out of sci fi channel I did a little research and saw that there are super leds that can have a wattage of 30. they are expensive though

[funkybozu]

30Watt !!! wow never seen that
i have a 1W and already it incredibly bright ill try to take pis of the beem(very focused!!) in my SW

heres are the lums for a 3w super led
superleds (http://www.edison-opto.com.tw/product_lighting_detail1.asp?led_type=2)
what do you think of the watt/lum ration?

[funkybozu]

does that make 6000lm at 300watts?
is that good?

edit just check. its still not up to MH standerds but its not bad
BTW the 5w version gives 120lumins

[Rocketman]

anybody know what sort of cost we talking about ?
bear in mind that LED's are very efficient and cost would be offset by energy usage.

[funkybozu]

but not as much as MHs RM
copared to a normal incadecent light yeah they outperfore by far but
MH lights still have the upper hand here.
the problem with LED is that the are basicle unidirectional ans have a lighting cone of 5cms
so to lightup a hole that you would need a lot f em
and if you have anydepth your gonna have to use even more
youll end up using more watts to get a good lighting that you would with MHs
the only thing at the momentthat would off set that is the 60000+ hours that a led can last compared to 3000 something of a MH