DIY LED lighting
It has been very long since I did any DIY projects. Now for my DIY Aquarium lighting experiment, some Luxeon V and CREE XR-E. They are meant to replace my 2x250W MH. Is it possible? I dont know yet, thats why I started this experiment.
I ordered 8pcs of the Luxeon V, 5W royal blues, 450nm. Each Luxeon V is actually 4 leds in one package, if you look closely you will be able to find 4 dies inside the lens http://i7.photobucket.com/albums/y27...8042008120.jpg Modified array of 12pcs of CREE XR-E 1.25W 5000K http://i7.photobucket.com/albums/y27...8042008121.jpg |
http://i7.photobucket.com/albums/y27...me/LuxeonV.jpg
Note that the Luxeon royal blue peaks at 450nm useful for photosynthesis but no glow for corals :(. Actinic peaks at 420nm, shorter wavelength for glow but not available for photosynthesis |
http://i7.photobucket.com/albums/y27...e/CREEXR-E.jpg
Spectrum chart for the CREE XR-E, 5000K was chosen because of the increased yellow/red spectrum needed for photosynthesis. However I tried keeping some purple acros under pure 15watts of CREE XR-E 5000K and failed, the acros bleached and recede slowly over 3 weeks. I have now increased to 40watts of royal blue and 15watts of white, only 1 side of the tank is lit due to the costs of luxeons USD$23+ each! |
These 8 pieces of Luxeon V are driven by 2 of these tiny Luxdrive LED Drivers at 700mA
http://i7.photobucket.com/albums/y27...eLEDDriver.jpg |
The LEDs are connected to a 4'x1' 3mm aluminum sheet as a heat sink. Effectively, only half of the aluminum is heated. The other side is room temperature.
I have taken temperature readings directly on the heat sink above the LEDs, its around 43-47C, well below the thermal design requirements :D http://i7.photobucket.com/albums/y27...ermocouple.jpg |
Received more Luxeon K2, still waiting for the CREE XR-E Q5s and 410nm actinic LEDs :D. These K2 will be driven at 1000mA or 1500mA once the 1500mA drivers are available.
http://i7.photobucket.com/albums/y27...5052008154.jpg |
Wow very pro leh
Hi,
Look cool, this DIY LED light. Good for adding moonlight to marine tank. |
Quote:
|
is the led complete? how much it cost total? and how much heat is produced compare to MH..
|
Quote:
As for heat, there is almost no heat input from the LEDs. I once ran the LEDs with 1 tunze wavebox with no chiller for about 12hours when I shut the main pump down due to leaks. The water temperature raised from 25C to 26.8C when I came back at night, I'm actually once pleased that the wavebox operates relatively cool! :D |
All times are GMT +9. The time now is 02:35 AM. |
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright © 2000-2008 Arofanatics.com (Since 30th August 2000)