gumbii
New member
i could just imagine how gorgeous those monsters are going to be... those are the fixtures that rimless tanks are waiting for...
LOL...
Another contender in the LED market...
- Thread starter RandyFolds
- Start date
i could just imagine how gorgeous those monsters are going to be... those are the fixtures that rimless tanks are waiting for...
LOL...
RandyFolds
Reef Troll
All LEDs emit light in a 180 degree hemisphere. What do you think focused that beam to 45 degrees? A lens. On this fixture, there is an individual reflector for each 60 degree LED.
What is your hang up with 1w LEDs? They offer more lumens - by a lot - per watt than 3w. 800 PAR at 24" depth. 112 watts. That is one 48" VHO (which will put out under 200 PAR with the sensor touching the bulb and has a much more rapid attenuation with depth)...
RandyFolds
Reef Troll
i dunno...
Yeah, see those clear globs? Those aren't the LED. See that little metal band? There she is...
gumbii
New member
ORLY!?!?!?!?!?... i did not noe that...
that's the diode and the cathode... the entire unit is called light emitting diode.... if the led is throwing a 180° of light, there is still going to be some light wasted in the second optic lense...
i have played with LED's before... i know there are some 180°, 90° and 45° degree led's... why can't cree's just come with the molded lense...?
reverse engineering like whoa...
RandyFolds
Reef Troll
Nope. The anode and the cathode are the wires leading up to the light emitting diode. The plastic is an epoxy lens to protect the extremely small and extremely sensitive material and alignment of the semiconductor.
RandyFolds
Reef Troll
Again, ALL LEDs emit light in 180 degree spread.
RandyFolds
Reef Troll
Indeed. Because of a lens. On the diode itself. Wow, this is a ridiculous argument.
RandyFolds
Reef Troll
The LEDs are definitely attached to something, which is an aluminum heatsink. Just because it doesn't have fins doesn't mean it isn't a heatsink. Whether or not it is enough mass and surface area to handle the heat is to be seen, but they are only 1w...
cocoaandme
New member
Not all LED fixtures have the same amount of disco effect. The disco effect is increased when blue and white LED's are placed farther apart from each other. Or when narrower angle lenses are used. Same principle. I don't think lenses are bad. They definitely do a god job at focusing the light emitted from LED's but they can also increase the disco effect and decrease the area of illumination. Also you get more hotspots when you use lenses or narrow angle lenses. LED fixtures without lenses spread out the light more evenly thus less hotspots and less disco effect.
The disco effect on LED's is the main thing that bothers me. Although I have seen some that barely have it at all like the acan lights. I can't even notice any with those lights and I am quite picky about it. Those lights use lenses to but they seem to be wider angle lenses.
Also you do not need lenses to make the LED's useful. There are LED fixtures that do not uses lenses but still work very well like the Evolution LED fixtures. (when I say lenses I mean the fittings that go over the LED's not the plastic encasing).
Anyway I like the housing for the ecoray but I really did not like the light it produced when I saw it at the lfs. I know how bright it looks isn't a good indication of effectiveness but if something is very dim it is very unlikely for it to have good par. It could be that the one they had was put on a controller to dim it though or maybe it was lemon. I would like to see yours on a reef as a comparison.
RandyFolds
Reef Troll
Once again, I am not pitching these. I think they are oddly sized and overpowered such that they have very limited applications.
I have some diffuser lenses that someone gave me that have a meshwork texture on the lens, similar to starboard for florescent lights. They are the only LEDs I have seen that don't disco out considerably, and I think this fixture would benefit immensely from them.
Here is a pic of the diffuser lenses:
What I think I will do is use this as a workhorse light rather than a display light. 800 par might make for some crazy coloration on SPS that can handle it.
letsgofishin
New member
those leds modules are from PFO's solaris fixture.... they had heat sink issues and were prone to burning out a single led, so rather then replace a module of 30 led's, or unsoldering one led in the module, they created modules that were replacable...
they folded under pressure from a rogue 'inventor' who apparently patented LED light source and they threatened PFO and other companies from marketing something they said they were going to release, but never did...
they folded under pressure from a rogue 'inventor' who apparently patented LED light source and they threatened PFO and other companies from marketing something they said they were going to release, but never did...
RandyFolds
Reef Troll
Oh, the strips blow. I have like, six or seven with random LEDs out on them, and they cannot be removed and replaced. I was merely trying to show their much-superior diffuser lenses.
letsgofishin
New member
r the insides of the reflectors shiny?? i would imagine that those reflectors arent very efficient as they are only catching the portion of the 180 degree light that is being emitted...
I bought one of the 60D to test out on my tank. (300 Gallon)
Definitely not much spread, my tank is 8'x2' and its going to take 7-8 of them to do the job. (of the 60D's)
However, compared to the brightness on the corals/liverock etc etc, the LED's are much brighter than my 250W DE Pheonix 14k that was there. The blue lights are pretty damn cool, my dual vho's can't touch it.
Big con so far is needing so many to cover the tank, the new 112's wont really work for me since they are only 11.5" and the coverage on a 24" wide tank is going to be lacking. Too bad they wouldn't make something like 22x22 but oh well.
Just going to run the one for now to see how my few corals and acans do before buying 2000 in LEDS. Love the no heat aspect too, these halides and ballast sure heat stuff up.
Definitely not much spread, my tank is 8'x2' and its going to take 7-8 of them to do the job. (of the 60D's)
However, compared to the brightness on the corals/liverock etc etc, the LED's are much brighter than my 250W DE Pheonix 14k that was there. The blue lights are pretty damn cool, my dual vho's can't touch it.
Big con so far is needing so many to cover the tank, the new 112's wont really work for me since they are only 11.5" and the coverage on a 24" wide tank is going to be lacking. Too bad they wouldn't make something like 22x22 but oh well.
Just going to run the one for now to see how my few corals and acans do before buying 2000 in LEDS. Love the no heat aspect too, these halides and ballast sure heat stuff up.
RandyFolds
Reef Troll
I ran some tests today with the 112 at 5' water depth. Par values were from 150-250+ within the recommended spread. Needless to say, it was very impressive. A 400w can barely create those values at 5' at four times the wattage.
Again, the spread was limited, and shadowing is created as a result. In a shallower tank, the effect would be much less prominent, but at 5', it needs to run with another source of light (MH most likely) to smooth things out, but not necessarily to add to the PAR values. That's just an added bonus.
Again, the spread was limited, and shadowing is created as a result. In a shallower tank, the effect would be much less prominent, but at 5', it needs to run with another source of light (MH most likely) to smooth things out, but not necessarily to add to the PAR values. That's just an added bonus.
RandyFolds
Reef Troll
The 112s cover 24" x 18", so you could get 5 and run them front to back rather than horizontal to the tank. Would probably be cheaper and cleaner than 8 of the 60s.
Similar threads
