just got all my leds in the mail but i keep blowing them HELP!!!!!!!!!

music64

Well-Known Member
i just all the leds and the driver which runs at 320ma the leds are rated for 350ma. i went and bought resistors but not sure how much i need. the voltage from the driver is 136 volts. the volts are suppose to run at 3.2 volts. the resistors are rated for 1/2 watt. this website should help anyone out if they so need it http://www.hebeiltd.com.cn/?p=zz.led.resistor.calculator. i am no where near an electrician. can someone please help me
 

guod

Well-Known Member
normally you need no resitors on constant current drivers.

on this drivers you will see two values for the output-voltage.

this is the range where your driver works properly.

example:

output:
30-80 VDC
350mA

minmum Leds for this Driver(white ones)

30V/3.2V=9.37.. ten white leds will be the minimum

the maxium white leds you can drive is

80V/3.2V=25.. i would go here for 24 white leds for some safety.

drivled.jpg
 
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