Need help with a tail/brake light

seff

Newly Enlightened
Joined
Dec 22, 2009
Messages
7
I want to ask you guys what kind of leds to use and how to wire them?
Ive ordered a led clear alternatives smoked tail lamp for my bike, but its not bright enough, my stock one is way brighter, and the new one feels unsafe to ride with. Thats how it looks:
http://r6blog.com/wp-content/uploads/2009/06/dscf2546.jpg
Inside it has 20 4pin leds looking exactly like these:
http://media.digikey.com/photos/Optek Photos/OVFSW6C8.jpg

I know how to wire regular leds, and got some basic knowledge. But here i need a led that will be lit constantly and then, as i apply the brake, light up even more.
What kind of LEDs should i use?
What resistors?
How to wire them?

(Bike got a 12V battery)
 
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