1157 LED

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I'm stumped and maybe someone here can help.. long story short I was going to buy a 3 LED star in a amber color and run it with say like a 700mA driver.. well I thought about that but what I don't understand is how I will get the dual brightness from the LED?

 

[tylernt]

The side of an 1157 is the ground and there are two + contact nubs on the bottom. One is supplied with voltage for dim, and both for bright. Rather than a driver, you can simply direct-drive with a resistor on each contact. Obviously, one resistor will have a higher value (for dim mode).