OLED Aquarium Lights may not exist yet but if these concept lights are any indication, the future of aquarium lighting could be very sleek. OLED stands for Organic Light Emitting Diode and they work very similarly to LEDs except that the light emission is produced by a flat field rather than concentrated in a single point. For now OLED components are very, very expensive and illumination quality pieces of of OLED are being released by Phillips in small quantities, mostly to make concept light designs like the ones above by Tom Dixon. When OLEDs do finally make their way to aquarium use, they will probably be used solely for general illumination, that is just to see your fish or corals, as OLEDs are nowhere near the intensity that can be achieved with other forms of light production. What will be particularly interesting is the look of such a diffused light source with absolutely no glitter lines compared to the strong glitter lines produced by LEDs and halides.