LED Power Usage Testing

1,447 views · Published 26 October 2012 · 5:47 · Indexed 10 October 2026

Channel: Jason Roush · 2012 · Science & Technology

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Sorry the light is to low in the beginning to see the voltage at 12.8. The meter is readable a little later after I move it.

This test throws off all of my past calculations. 
12.8v times 20mA equals 0.256 watts or about 1/4 watt. 45watt solar for one hour divided by 0.256 equals 175.78 hours of burn time. Minus unknown efficiency looses.

I think I should run some wire to the other side of the room and put up the other light.

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