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Price includes a 3 Watt LED in White, Blue or Red with voltage regulator. This allows you to connect it to any power source from 9V-14V DC or AC
Colors: White = Cool White, Red, Blue
Includes about 6 inches of wire.
What is the voltage regulator? It is used to reduce the voltage you give the unit to 9-14V. It is inline on the wire. Its about 1cm in diameter on the wire. It can be cut off if you place on using these on 3-4V DC/AC.