An Open Hardware design for Aquarium LED lighting.
For more details, see: the ReefCentral thread and the blog.
The emitter board is a custom metal-core PCBA designed to hold 8 channels of LEDs form Cree (XP footprint), Osram (SSL and Square), Luxeon (UV and Rebel footprints).
An 8 channel 24VIN + 12VOUT Fan LED dimmer board powered by a Nordic nRF51 basic Bluetooth Low Energy / Bluetooth Smart microcontroller.