sbt-70 direct drive

[landries]

i would like to use a luminus sbt-70 in direct drive with a resistor
source is 2s 3p lithium cell
there will be a thermal switch 70°C
witch resistor do i need to get 10A
any help is welcome

 

[lucca brassi]

U= IxR

R= (7,2V-3,5V )/10A = 0,37 Ohm

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P= UxI

P=I**2xR = 37W

LP
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Ps : for direct drive is much better 1S6P in that case resistor R= 0,02 ohm , P= 2W

or

http://www.candlepowerforums.com/vb...stable-10A-linear-LED-driver-New-and-Improved