ReefLEDLights
05/24/2012, 09:52 PM
Here are some Pics and Specs of one of our Custom Phoenix DIY Fixtures actively used to grow out coral frags.
The goal was show and grow a 4' x 3' coverage with 100 PAR minimum. The fixture was planned 4' above the water and measures 120 PAR at the edges 260 PAR in the middle.
The grow was based on research done by Sanjay Joshi, Svein Fossa, Alf Nilsen J.C Delbeek and J Sprung. Their work and writings have been very influential in our recommendations.
Intensity is highly debated which is why we decided to go with "measured overkill"...Fossa and Nilsen in their Modern Coral Reef Aquarium published this graph.
http://i908.photobucket.com/albums/ac282/ReefLEDLights/DaytimeLUX.jpg
This Fixture is designed to be run at max intensity for only 3-4 Hours a day. Thermal management is based on 100% 24/7. The Dimming is controlled by a Neptune APEX. At full Intensity we measured 190 watts. This is much more efficient than a comparable 400 watt MH. You also do not have the heat. The PAR at full is 668 v 426 on a 400 watt Radium w Reflux Reflector at 24"
The look is based on our personal experience with our own reef tanks and the collective knowledge, posts, and feed back of active reefers.
There is a lot of room for debate here...Who's hotter...Ginger or Mary Ann...This is a debate we chose to avoid by building the fixture with multiple dimmable Hyperon drivers to allow the end user to tweak the colour or looks perfectly.
Here are the specs...Optics are Carclo Ripple Wide.
10 Cree XP-G High Noon Cool White @ 1050mA
15 Cree XP-G Premium Cool White @ 700mA
15 Cree XT-E Royal Blue @ 700mA
15 Cree XP-E Blue @700mA
12 Violet 410-420nm @ 700mA
2 XP-E Green, 2 XP-E Red, 1 XP-E Blue @ 700mA
http://i908.photobucket.com/albums/ac282/ReefLEDLights/Phoenix%20Build/RDBuild3.jpg
http://i908.photobucket.com/albums/ac282/ReefLEDLights/Phoenix%20Build/RDBuild1.jpg
http://i908.photobucket.com/albums/ac282/ReefLEDLights/Phoenix%20Build/RDBuild2.jpg
The look is 17K at 100%
This can be changed or tweaked simply by dialing one driver back. There is plenty of room for this. Given the up front cost of LEDs we feel this is desirable as the Cree X series of LEDs are extremely efficient when driven at less than their max rated current. Over 70% the efficiency drops quickly. At 30% you gain 10-15% over driving them at 70%.
Bill
The goal was show and grow a 4' x 3' coverage with 100 PAR minimum. The fixture was planned 4' above the water and measures 120 PAR at the edges 260 PAR in the middle.
The grow was based on research done by Sanjay Joshi, Svein Fossa, Alf Nilsen J.C Delbeek and J Sprung. Their work and writings have been very influential in our recommendations.
Intensity is highly debated which is why we decided to go with "measured overkill"...Fossa and Nilsen in their Modern Coral Reef Aquarium published this graph.
http://i908.photobucket.com/albums/ac282/ReefLEDLights/DaytimeLUX.jpg
This Fixture is designed to be run at max intensity for only 3-4 Hours a day. Thermal management is based on 100% 24/7. The Dimming is controlled by a Neptune APEX. At full Intensity we measured 190 watts. This is much more efficient than a comparable 400 watt MH. You also do not have the heat. The PAR at full is 668 v 426 on a 400 watt Radium w Reflux Reflector at 24"
The look is based on our personal experience with our own reef tanks and the collective knowledge, posts, and feed back of active reefers.
There is a lot of room for debate here...Who's hotter...Ginger or Mary Ann...This is a debate we chose to avoid by building the fixture with multiple dimmable Hyperon drivers to allow the end user to tweak the colour or looks perfectly.
Here are the specs...Optics are Carclo Ripple Wide.
10 Cree XP-G High Noon Cool White @ 1050mA
15 Cree XP-G Premium Cool White @ 700mA
15 Cree XT-E Royal Blue @ 700mA
15 Cree XP-E Blue @700mA
12 Violet 410-420nm @ 700mA
2 XP-E Green, 2 XP-E Red, 1 XP-E Blue @ 700mA
http://i908.photobucket.com/albums/ac282/ReefLEDLights/Phoenix%20Build/RDBuild3.jpg
http://i908.photobucket.com/albums/ac282/ReefLEDLights/Phoenix%20Build/RDBuild1.jpg
http://i908.photobucket.com/albums/ac282/ReefLEDLights/Phoenix%20Build/RDBuild2.jpg
The look is 17K at 100%
This can be changed or tweaked simply by dialing one driver back. There is plenty of room for this. Given the up front cost of LEDs we feel this is desirable as the Cree X series of LEDs are extremely efficient when driven at less than their max rated current. Over 70% the efficiency drops quickly. At 30% you gain 10-15% over driving them at 70%.
Bill