PDA

View Full Version : New LED's released



Workaholic
04-13-2010, 08:32 PM
Thought you all would find this interesting. I know its a competing forum but I got the link through facebook and at least for me with a "off" size tank of 3' this looks like a very promising and cost effect solution to go LED for some.

http://www.3reef.com/forums/reef-lighting/sunbrites-par38-led-spots-flood-usa-87145.html

Tom

roblou
04-13-2010, 08:55 PM
Yep, I've read about those a little. As I understand them, they fit into a regular light bulb socket and each unit is completely self contained in each bulb fixture. I believe many people are using track lighting method, mounting a couple of tracks and then adding as many fixtures as they need. IIRC, you cannot use these bulbs on a dimmer though.

Rob

thatguy559
04-13-2010, 09:04 PM
yeah they are like 119 a bulb. not so practical for my setup i would have to buy 15 of them lol

Workaholic
04-13-2010, 09:08 PM
Yep, I've read about those a little. As I understand them, they fit into a regular light bulb socket and each unit is completely self contained in each bulb fixture. I believe many people are using track lighting method, mounting a couple of tracks and then adding as many fixtures as they need. IIRC, you cannot use these bulbs on a dimmer though.

Rob

I haven't heard anything about the lack of dimmability all though my understanding is that yes they do just go into regular bulb sockets. Which is really nice and gives allot of versatility.

thatguy559: Like I said I could see these being very beneficial for odd size setups. For instance on my 3' tank there aren't really any LED fixtures available that would be very feasable for my tank. These though I could start out with 3-4 and see how I like them and increase or decrease as I see fit.

Tom

Burke
04-13-2010, 09:20 PM
I noticed them at Lowes last weekend. They were like $40-$50 if I remember correctly. I think they only had warm white.

Workaholic
04-13-2010, 09:24 PM
I noticed them at Lowes last weekend. They were like $40-$50 if I remember correctly. I think they only had warm white.

Those are a very different LED. I dont think those have near the power that these do from what I've seen.

Tom

Burke
04-13-2010, 11:59 PM
Those are a very different LED. I dont think those have near the power that these do from what I've seen.

Tom

It looks the same to me: http://www.lowes.com/pd_314145-75774-PAR38/HP/LED_0_?productId=3197187&Ntt=led&Ntk=i_products&pl=1&currentURL=/pl__0__s?newSearch=true$Ntt=led
(http://www.lowes.com/pd_314145-75774-PAR38/HP/LED_0_?productId=3197187&Ntt=led&Ntk=i_products&pl=1&currentURL=/pl__0__s?newSearch=true$Ntt=led )

16-Watt 7-LED PAR38 Reflector Bulb

Long life lamps last up to 30000 hours.
LED lamps use very little energy and are more efficient than incandescent, halogen, or compact fluorescent lamps.
High-power LED's are true replacement performance lamps for distance and close-range use.
High-Power LED's produce soft white light.

Workaholic
04-14-2010, 01:26 AM
well I maybe mistaken then. All though those appear to either have less efficient LED's or they use a higher output LED as they are 16w for 7 LED's where as these sunbrite's consume just over 1w per LED.

Tom

Burke
04-14-2010, 01:36 AM
I don't know either. There is a build thread on another site where a guy is using them (the Par38 lights). It will be interesting to see how well they perform.

Workaholic
04-14-2010, 09:21 AM
Do you know what the other site is? I'd be pretty interested to watch this build thread.

Tom

Burke
04-14-2010, 09:52 AM
http://reefcentral.com/forums/showthread.php?t=1746535&page=10

This is the thread.

roblou
04-14-2010, 10:17 AM
PA has a brand of these LEDs for reef tanks available, although considerably more than $50/each. 7 LED but 21W.

http://premiumaquatics.com/store/merchant.mvc?Screen=CTGY&Store_Code=PA&Category_Code=ledio

Skimmy
04-14-2010, 11:56 AM
PA has a brand of these LEDs for reef tanks available, although considerably more than $50/each. 7 LED but 21W.

http://premiumaquatics.com/store/merchant.mvc?Screen=CTGY&Store_Code=PA&Category_Code=ledio

THOSE are the right color frequency and have superior output per watt, and would be the only bulb style ones that I personally would try...
to me though, those are better suited for a canopy, and would probably look strange in a fixture...
I guess you could still make a cool little aluminum framed box for them and hide the sockets and most of the bulb at least.

roblou
04-14-2010, 12:01 PM
I have a 12" tall canopy with my tank right now, using MH lighting. The information I was reading regarding these types of LEDs is that mounting them inside my canopy might be too low, creating a spotlight effect.

A lot of people seem to mount these all the way up on the ceiling and from what I understand the light is pretty focused into the tank even at that height. Seems like that might work great for a rimless tank, but for me personally I want to keep my lighting within my canopy.

BCT182
04-14-2010, 01:36 PM
Wow. That would be sweet on a look down or rimless tank. Do you know of anyone who might run them this way? With pictures or maybe a very detailed description?

roblou
04-14-2010, 03:02 PM
The RC thread has some good pics: http://www.reefcentral.com/forums/showthread.php?t=1746535

In that thread, they are using fixtures made by someone and sold through nanotuners: http://www.nanotuners.com/product_info.php?products_id=623&osCsid=alhi51siai2u554dj3l0dt02n1

Those have 5 CREE LEDs per fixture, 21W total, and are $119/each, or $99/each when you order 5 or more!

thatguy559
04-14-2010, 08:19 PM
these guys can build you a retrofit kit to fit any size tank
http://coralskyled.com/index.html

Katchupoy
04-15-2010, 09:33 PM
guy559, that is a good find.

I have been reading the gigantic thread on another site about LED and although Im almost done, I never seen this setup before... good find...

Ive been thinking of doing my own DIY LED to supplement my t5 but this one gives me something to think about.

holdendaniel
04-19-2010, 11:10 PM
looking into the new cree powered pacific sun led light? is there better

MGDMIRAGE
04-19-2010, 11:22 PM
The RC thread has some good pics: http://www.reefcentral.com/forums/showthread.php?t=1746535

In that thread, they are using fixtures made by someone and sold through nanotuners: http://www.nanotuners.com/product_info.php?products_id=623&osCsid=alhi51siai2u554dj3l0dt02n1

Those have 5 CREE LEDs per fixture, 21W total, and are $119/each, or $99/each when you order 5 or more!

Yeah Evilc66 he is on Nanoreef.com, most of the people who have ordered the bulbs seem quite happy with them. I believe evil himself uses 4 of these bulbs over his 40 gallon breeder reef.

Workaholic
04-19-2010, 11:22 PM
looking into the new cree powered pacific sun led light? is there better

Better? I dunno. cheaper? MANY MANY differen't options for cheaper.

Tom

Workaholic
04-19-2010, 11:58 PM
The RC thread has some good pics: http://www.reefcentral.com/forums/showthread.php?t=1746535

In that thread, they are using fixtures made by someone and sold through nanotuners: http://www.nanotuners.com/product_info.php?products_id=623&osCsid=alhi51siai2u554dj3l0dt02n1

Those have 5 CREE LEDs per fixture, 21W total, and are $119/each, or $99/each when you order 5 or more!

Ya know these are cool. but i'm not so sold with them only lasting 4-6 years. when other LED fixtures (for example AI) has a lifespan of 50000 hrs (19.5 years at 7hrs a day)

Tom

Workaholic
04-21-2010, 10:57 PM
Ya know these are cool. but i'm not so sold with them only lasting 4-6 years. when other LED fixtures (for example AI) has a lifespan of 50000 hrs (19.5 years at 7hrs a day)

Tom

Ok so I've just gotten an email back from nanotuners and i'm not sure why people beleive the expected life span is 4-6 years when they have the same LED's as the AI fixture and after receiving my email i'm pretty sure that the actual life of these par38 lamps is 50,000 hrs just like the AI fixture but I have an email out to verify I understood it correctly.

Tom

roblou
04-22-2010, 04:10 AM
I think there's some debate over "lifespan" vs usable lifespan due to luminescent decay. Even though the LEDs will last for 50,000 hrs, it doesn't necessarily mean you keep using them that long. Just like we replace our MH bulbs at ~6 months, even though the bulb continues to light up...

From what I've read, luminescent decay on LEDs is much slower than regular bulbs, but unfortunately I don't recall the exact decay rate. However, I would tend to agree with the folks that think LEDs should probably be replaced before the 50,000 hour mark, assuming the bulbs have decayed in output by a certain percentage before that time.

Rob

roscoe
04-22-2010, 07:31 AM
I've read somewhere on MR's LED thread that LEDs lose 5% intensity every year. I don't know how true that is though. However I somewhat believe it as I'm sure there are some spectrum lost over time way before the 50000/hr mark.

Workaholic
04-22-2010, 09:11 AM
I've read somewhere on MR's LED thread that LEDs lose 5% intensity every year. I don't know how true that is though. However I somewhat believe it as I'm sure there are some spectrum lost over time way before the 50000/hr mark.


From what I have read there is definitely intensity loss over time but 0 spectrum loss which was claimed to be yet another benefit of LED's.

Tom

Workaholic
04-22-2010, 09:11 AM
I think there's some debate over "lifespan" vs usable lifespan due to luminescent decay. Even though the LEDs will last for 50,000 hrs, it doesn't necessarily mean you keep using them that long. Just like we replace our MH bulbs at ~6 months, even though the bulb continues to light up...

From what I've read, luminescent decay on LEDs is much slower than regular bulbs, but unfortunately I don't recall the exact decay rate. However, I would tend to agree with the folks that think LEDs should probably be replaced before the 50,000 hour mark, assuming the bulbs have decayed in output by a certain percentage before that time.

Rob

Thats very true but even if we replaced them every 25000 hrs. were still coming out WAY ahead of anything else currently available.

Tom