I have LED with a 100ma rating, 4.5v voltage drop and 12v power source.
The formulae I have been using call for a resistor of 82 ohms with 1w rating.
I have a 100 ohm 1w resistor in series with this LED and it gets too hot to hold.
What am I doing wrong?
The formulae I have been using call for a resistor of 82 ohms with 1w rating.
I have a 100 ohm 1w resistor in series with this LED and it gets too hot to hold.
What am I doing wrong?