Par 38 LED spotlights - Page 4

Stripe01 · 12/31/2009, 05:24 PM

I've had great growth so far on my superman monti and birdsnest, I realize that they are easy sps but it shows promise.

I do not find the 20k too blue at all, especially when compared to t-5 and 20k halide bulbs.

Stripe01 · 12/31/2009, 05:26 PM

Quote:

Originally Posted by Drag Racer

Just ordered my 12k 80 degree tonight. Hope its not to bulky to build a nice holder for it. Wife doesnt like the idea of a off the wall or hang from the cieling fixture. Man its hard to make them happy.

Use the ikea or office depot clamp on fixtures.

Drag Racer · 12/31/2009, 11:09 PM

Calm what size tank is that you have and what light fixture is on it?

CalmSeasQuest · 01/01/2010, 10:03 AM

Quote:

Originally Posted by Drag Racer

Calm what size tank is that you have and what light fixture is on it?

CadLight 39G Pro - 39 gallon DT +12 gallon sump. The current light fixture is the stock CadLight 150W MH running a 14K Phoenix, 2x T5s and moonlight LEDS .

All temporary though, a 2 unit Aqua Illumination is being delivered next week

homeboyreefer · 01/01/2010, 09:18 PM

nice tank calm, so it doesnt look like even the 80 degree optics offer much in terms of spread when lowered down, i figure i'm going to order the 80 with 20k and see if that will light up my sps frags but if not i guess it can always be a zoa,lps frag farm.

on a side note, i cant wait to see how the AI leds work for you as i've really wanted those lights but just don't have the ching for them to light up my cube, must be nice!!!

rick88 · 01/14/2010, 10:21 AM

why is there no straight answer on sps are we avoiding the word "NO" or waiting for someone to prove the lights capabilities. (im refering to most all sps not just monti's and birdsnest's)

williah · 01/14/2010, 11:42 AM

I'm curious, has anyone who purchased this light run PAR readings at varying depths, say 6", 12", 24", 36"?

CalmSeasQuest · 01/14/2010, 12:04 PM

Quote:

Originally Posted by williah

I'm curious, has anyone who purchased this light run PAR readings at varying depths, say 6", 12", 24", 36"?

Evil posted PAR charts on another forum, I'm not sure if RC allows me to post a link. Using the 80 degree optics, at 14" PAR was 150-200

Perhaps Evil will post all the PAR data here?

I'm keeping lots of SPS under mine - but it's only been up for a couple weeks AND the lamp is only 9" above the frags providing a very small coverage area (about 10" diameter) It's too soon to make a definitive determination but so far so good.

If it works 1/2 as good as the AI LEDS (used on the DT in the pic below) I'll be very happy.

chasekwe · 01/14/2010, 02:20 PM

Could you give the exact dimensions of the light? How long is the fixture, what is the diameter at the largest point?

CalmSeasQuest · 01/14/2010, 09:27 PM

Quote:

Originally Posted by chasekwe

Could you give the exact dimensions of the light? How long is the fixture, what is the diameter at the largest point?

About 5" deep and 5" max diameter - Much like an outdoor flood light.

mirkus · 01/15/2010, 06:23 PM

To estimate the spread of 80 degree lens just google a triangle calculator and input your distance and angle. With that said, I have two 80 degrees on my tank and it covers 30 x22 inches okay. The lights are 10 to 11 inches off the water.

beeker · 01/26/2010, 11:57 AM

post pics of your PAR38 setups please :] i need to see some more convincing images, lol

Cozen89 · 01/26/2010, 03:56 PM

you can see some shots of my par38 bulb over my 20 gallon long here. http://reefcentral.com/forums/showthread.php?t=1777124

It is 20K with an 80degree spread. The light fall off on the sides of the tank aren't as bad as the pic shows. It does drop off a bit, but that's perfect for me as I plan on keeping yumas in the shaded sides.

homeboyreefer · 01/26/2010, 04:47 PM

Quote:

Originally Posted by rick88

why is there no straight answer on sps are we avoiding the word "NO" or waiting for someone to prove the lights capabilities. (im refering to most all sps not just monti's and birdsnest's)

plus one i really want to light a frag tank with these but just so little official info, i guess it is made by a small company so they don't have the resources to do any tests or want to. we'll have to wait until maybe grimreefer do some par and spread tests ?

fewskillz · 01/27/2010, 03:10 PM

I ordered one this morning. If I don't like it it's going over my 3 gallon Pico or getting sold.

If I like it, I'm ordering 5 more and lighting my 180! I'll probably have to get a t5 strip light or something for coverage, but I'm going to try the spotlights by themselves first.

wayne in norway · 01/28/2010, 02:27 PM

Do you have a LUX : PAR conversion factor? Always curious.....

Do you have any data on the amount of depreciation of light output with time. I believe the CREE's you use fare a lot better than other LED's?

Cozen89 · 01/29/2010, 01:43 AM

Your tank looks good Evil. Thanks for posting those par charts. I'm not too familiar with the par required for different types of coral. What amount of PAR would you say is sufficient for LPS, and also for softies such as ricordeas?

Psionicdragon · 01/29/2010, 03:54 AM

ok, i think i am dumb...i can read a tax return, but can't read and understand the charts....

so how much par do i get on a 30-40 inch distance ?

how many of these units do i need to run for a 60x18x24 mix reef tank?

Haksar · 01/29/2010, 04:13 AM

How high is the light from the tank.Any idea what wattage are you getting with this light.
Is it equal to 250W or 400W MH.

Haksar · 01/29/2010, 12:00 PM

Thanks Evil,so your lights are at least 30-40 inch above water level or more I presume
I just bought a 2 x 279 W ( 240 W - 80 x 3 W 14k white and 39 W 460 nm blue) for my 150x50x50cms DT with mainly SPS reef.I have set it at 15 inches above water level.Do you think I shoudl raise it further up considering your set up.Its been one week since I got this lights.So far all my corals are happy and no bleaching yet.I don't have a PAR meter so no idea how much PAR my tank is getting.

karsco · 01/29/2010, 02:50 PM

Evil, just a quick question. I am looking at this light to light an area of my sump for a frag grow (mainly SPS & Acans) out area. I only need to light about a 10" x 12" area, the water depth is about 10", and I can mount the light probably about a 12"-18" above the water line. Would this light work well in this application?

Stripe01 · 01/29/2010, 03:43 PM

Here's an updated shot of my 5g ADA, I just have two sps at the moment which are both birdsnest and they are growing good.

Cozen89 · 01/29/2010, 04:03 PM

Quote:

Originally Posted by evilc66

Depends on the corals, but most softies can tollerate around 100 PAR. Some are a little more picky than other, but with the falloff in PAR as you move away from directly underneath the lamp, there is always a spot that will work for them. Lps are the same way, but most can tollerate higher PAR when acclimated. I have frogspawn in about a 200 PAR area of the tank, and it does fine.

Thanks for your response. By tollerate 100 par, I'm guessing you mean they like less. I'm going to concentrate on yumas and ricordeas. Maybe some zoas. I have an 80degree lamp about 20 inches off the sand bed. So according to your chart I'm looking at around 100par on the sand bed and 200 par on top of my rock-200 directly under the lamp, and around 30-80 par off to the sides. So I think I'm good right?

skippyreef · 01/29/2010, 08:10 PM

WOuld these spots work to light specific areas of a 24" tank lit primarily with MH????

Aquabacs · 01/29/2010, 08:19 PM

A few pics of mine

Mike

12/31/2009, 11:09 PM	#78
Drag Racer Registered Member Join Date: Sep 2007 Location: West Bend, Wi Posts: 1,280	Calm what size tank is that you have and what light fixture is on it? __________________ Why did I start this addictive hobby???????? Its not like I didn't have anything better to do. Link to my DIY HOB Fuge for 4 gallon tank http://reefcentral.com/forums/showthread.php?t=1971283 Current Tank Info: 75gal fresh 4 Gallon Pico

01/14/2010, 11:42 AM	#82
williah Registered Member Join Date: Aug 2008 Location: Queens, NY Posts: 123	I'm curious, has anyone who purchased this light run PAR readings at varying depths, say 6", 12", 24", 36"? __________________ Do you know smurfet? I smurfed her. Current Tank Info: 72 gal bowfront: coral & fish

01/14/2010, 02:20 PM	#84
chasekwe Registered Member Join Date: Jul 2003 Location: Albany, NY Posts: 631	Could you give the exact dimensions of the light? How long is the fixture, what is the diameter at the largest point? __________________ Nick

01/27/2010, 03:10 PM	#90
fewskillz Registered Member Join Date: Aug 2006 Location: Wilmington, NC Posts: 197	I ordered one this morning. If I don't like it it's going over my 3 gallon Pico or getting sold. If I like it, I'm ordering 5 more and lighting my 180! I'll probably have to get a t5 strip light or something for coverage, but I'm going to try the spotlights by themselves first. __________________ Is there a reef-addict support group? Hello, my name is Chris, and I have a reefing problem. Current Tank Info: 180 mixed reef, 10 BB Nano Reef, 15 PFW

01/29/2010, 03:54 AM	#93
Psionicdragon Registered Member Join Date: Dec 2002 Location: San Francisco Posts: 3,727	ok, i think i am dumb...i can read a tax return, but can't read and understand the charts.... so how much par do i get on a 30-40 inch distance ? how many of these units do i need to run for a 60x18x24 mix reef tank? __________________ Economy sucks bad! Lets pray for the best! in the meantime, liquidation!

12/31/2009, 05:24 PM	#76
Stripe01 Moved On Join Date: May 2009 Location: Napa Posts: 411	I've had great growth so far on my superman monti and birdsnest, I realize that they are easy sps but it shows promise. I do not find the 20k too blue at all, especially when compared to t-5 and 20k halide bulbs.

01/01/2010, 09:18 PM	#80
homeboyreefer Registered Member Join Date: Mar 2009 Posts: 212	nice tank calm, so it doesnt look like even the 80 degree optics offer much in terms of spread when lowered down, i figure i'm going to order the 80 with 20k and see if that will light up my sps frags but if not i guess it can always be a zoa,lps frag farm. on a side note, i cant wait to see how the AI leds work for you as i've really wanted those lights but just don't have the ching for them to light up my cube, must be nice!!!

01/14/2010, 10:21 AM	#81
rick88 Moved On Join Date: Aug 2009 Location: jax bch ,FL currently in Gainesville for a while Posts: 180	why is there no straight answer on sps are we avoiding the word "NO" or waiting for someone to prove the lights capabilities. (im refering to most all sps not just monti's and birdsnest's)

01/15/2010, 06:23 PM	#86
mirkus Registered Member Join Date: May 2005 Location: Oakland, CA Posts: 311	To estimate the spread of 80 degree lens just google a triangle calculator and input your distance and angle. With that said, I have two 80 degrees on my tank and it covers 30 x22 inches okay. The lights are 10 to 11 inches off the water.

01/26/2010, 11:57 AM	#87
beeker Registered Member Join Date: Dec 2005 Location: cincinnati Posts: 701	post pics of your PAR38 setups please :] i need to see some more convincing images, lol

01/26/2010, 03:56 PM	#88
Cozen89 Premium Member Join Date: Mar 2007 Location: San Francisco, California Posts: 1,411	you can see some shots of my par38 bulb over my 20 gallon long here. http://reefcentral.com/forums/showthread.php?t=1777124 It is 20K with an 80degree spread. The light fall off on the sides of the tank aren't as bad as the pic shows. It does drop off a bit, but that's perfect for me as I plan on keeping yumas in the shaded sides.

01/28/2010, 02:27 PM	#91
wayne in norway Registered Member Join Date: Jul 2004 Location: Stavanger, Norway Posts: 1,271	Do you have a LUX : PAR conversion factor? Always curious..... Do you have any data on the amount of depreciation of light output with time. I believe the CREE's you use fare a lot better than other LED's?

01/29/2010, 01:43 AM	#92
Cozen89 Premium Member Join Date: Mar 2007 Location: San Francisco, California Posts: 1,411	Your tank looks good Evil. Thanks for posting those par charts. I'm not too familiar with the par required for different types of coral. What amount of PAR would you say is sufficient for LPS, and also for softies such as ricordeas?

01/29/2010, 04:13 AM	#94
Haksar Registered Member Join Date: Sep 2007 Location: Dubai Posts: 1,041	How high is the light from the tank.Any idea what wattage are you getting with this light. Is it equal to 250W or 400W MH. __________________ Haksar

01/29/2010, 12:00 PM	#95
Haksar Registered Member Join Date: Sep 2007 Location: Dubai Posts: 1,041	Thanks Evil,so your lights are at least 30-40 inch above water level or more I presume I just bought a 2 x 279 W ( 240 W - 80 x 3 W 14k white and 39 W 460 nm blue) for my 150x50x50cms DT with mainly SPS reef.I have set it at 15 inches above water level.Do you think I shoudl raise it further up considering your set up.Its been one week since I got this lights.So far all my corals are happy and no bleaching yet.I don't have a PAR meter so no idea how much PAR my tank is getting. __________________ Haksar

01/29/2010, 02:50 PM	#96
karsco Registered Member Join Date: Feb 2003 Location: Omaha, NE Posts: 645	Evil, just a quick question. I am looking at this light to light an area of my sump for a frag grow (mainly SPS & Acans) out area. I only need to light about a 10" x 12" area, the water depth is about 10", and I can mount the light probably about a 12"-18" above the water line. Would this light work well in this application?

01/29/2010, 03:43 PM	#97
Stripe01 Moved On Join Date: May 2009 Location: Napa Posts: 411	Here's an updated shot of my 5g ADA, I just have two sps at the moment which are both birdsnest and they are growing good.

01/29/2010, 08:10 PM	#99
skippyreef Registered Member Join Date: Apr 2003 Location: under the sea Posts: 1,079	WOuld these spots work to light specific areas of a 24" tank lit primarily with MH???? __________________ Anacroporamademepoora Current Tank Info: 270 gallon Reef

01/29/2010, 08:19 PM	#100
Aquabacs Registered Member Join Date: Jan 2005 Location: Yonkers, NY Posts: 1,581	A few pics of mine Mike __________________ Put down the halide and step into the shade...welcome to the darkside of reefkeeping. FM UltraLith system since 7.3.08 Current Tank Info: 50 gallon rimless non-photosynthetic