i have a mini 1g tank and i want to put a single 3w cool white cree in its lid rather than the incandescent light it comes with, i am looking for a power supply to run it. i am going to go with no optics because the tank is only 6" tall - sand bed and the led will be 1.5" from the water.

i want to make a micro nano with my mini GBTA's in it and 2 sexy anemone shrimp to live in them. maybe throw a few coral in it.

anyone know where i can get a power supply for it? can i just use a single 1 amp 12v power pack type of power supply?