Just a teaser for now. I have just got home and all my parts have arrived. This is supposed to be a Christmas present but I had to be sure nothing was missing or damaged so I opened up the packages to check and thought I'd share with photos. I won't start the build until the end of the month but I am planning to document the LED build, Typhon hookup and the cooling I am using.
I bought components during Rapid LED's Black Friday sale. 16 Royal Blue XP-E, 8 Neutral White XP-G, 2 Blue XP-E and 4 Violet UV 3W LEDs. 4 Blue moonlights. 3 Meanwell dimmable drivers ELN-60-48P. 5.9 x 16" heatsink. Moonlight driver. Arctic Alumina thermal adhesive. 3 power cords for drivers. Wire for LED hook up.
I also bought a Typhon lighting controller (comes with power supply and output wires).
Finally, I bought some cooling gear. Coolerguys programmable thermal controller, 12V/5V power supply, Noctua 80mm fan, extension harness for thermal probe and fan.
Proposed design detail:
I'm trying to alternate the RB and NW LEDs which is definitely harder with some colour ratios and numbers of LEDs than others. I think I am going with this layout but if anyone has comments I'll be glad to hear them. NW will be on one driver and half the RB on another and the remaining RB and the 2 B on the third. This way I will have the ability to vary the colour temperature as well as intensity by selective dimming of each circuit. LEDs will be approximately 2" apart (centre to centre) and rows approximately 2.5" apart.
The heatsink will replace the stock lighting in the hood, inside the splash shield. The drivers will be external to the hood because 3 won't fit and also to keep the heat down in the tank.
The stock fan set up will not flow air in the right area so I am removing the stock fans and using the openings as air intakes and making a new hole in the hood front and centre for the 80 mm fan. This will be above the heatsink and will pull air from the rear openings. I have a programmable fan controller with thermocouple which allows the fan on and off temperatures to be set. Definitely overkill but I wanted the flexibility to adjust these parameters rather than have to redesign later on. I got the medium speed fan which has adapters to run at 800 RPM / 26 m^3/h, 1300 RPM / 39 m^3/h, or 1800 RPM / 53 m^3/h with noise ratings of 7, 10 and 17 dB(A) respectively. Should be a lot quieter than the stock fans. If the flow isn't adequate to keep the heat down, I will step up to the high speed fan. I got a grille that will cover the fan and tidy things up a bit for a more stock look. There are extension wires for the fan and controller to allow flexibility of where to mount the controller.
The Typhon is an Arduino-based light controller that uses a Pulse Width Modulation output to the drivers. The stock programming allows one one/off cycle per channel per day with sunrise and sunset ramping. It can be reprogrammed using a PC and USB cable but this is beyond me right now. The unit should be capable of controlling fans and moonlights if you know how to programme it. As I don't, I bought the LED moonlight kit and will operate that separately to the main LEDs. The Typhon comes as a DIY board with dispaly and needs a housing. There are plenty of project boxes out there and even some Arduino-specific ones but the problem is the screen height makes it difficult to get a flush screen and also allow button integration. I have seen some other projects out there with a variety of solutions, some elegant, some less so but nothing off the shelf. I don't think the Typhon will need constant adjustment once the acclimatisation of the coral has been completed so it may not be a big deal.
Edit 10 Dec: Add proposed design detail.
Edited by GTi, 06 January 2013 - 05:07 AM.