Quote Originally Posted by Zook View Post
resistor depends on your voltage. I believe that there is a resistor chart around here you can use to determine the resistor you need.

Also a more efficient way would be to use two 700 buck pucks. It will only get you 1400ma but it will be more efficient and the battery life will be better. you will not notice the difference in 1400ma adn 1500ma I dont think.
Would your battery suggestion change from the 2 Li-ions due to the LED change?

Otherwise I'll go with the pucks.

On another forum someone suggested I use the 10w 2.7Ohm resistor as the 5w one would not be sufficient enough for 2 Li-ion 3.7s and this particular new LED.