Can I use LED light technology to light my fish tank?

I have seen LED lights in retail stores that give lots of light and use very little power.My tank is planted with real plants and I wonder if those LED lights cover the whole light spectrum needed for the plants to thrive.

I would not use LEDs for a planted tank. The light emitted is usually not beneficial for optimum plant growth. I ran across a website online that specializes in all types of aquarium lights, http://www.aquariumlightsupply.com
They are currently having a big sale.

Eternaleds LED Light Bulbs | GreenDealsDaily.com

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