I have a project in mind where I plan to switch some of those 1W LEDs with a logic level MOSFET. One LED per MOSFET.
My supply will be 5V. Forward voltage of the LED is 3.1V @ 350ma. If I did my calculation correctly that gives me a current limiting resistor of only 5.6 ohms. A little more than a half watt so I'd probably need to go to a watt watt.
With those smaller LEDs I would probably risk no current limiting resistor for a project that doesn't need to last forever and is just a fun project anyway. But I have not worked with the higher power LEDs before.
Since this is just a fun project and don't care if it lasts forever can I get by with just leaving the 5.6ohm out as a current limiter?
My supply will be 5V. Forward voltage of the LED is 3.1V @ 350ma. If I did my calculation correctly that gives me a current limiting resistor of only 5.6 ohms. A little more than a half watt so I'd probably need to go to a watt watt.
With those smaller LEDs I would probably risk no current limiting resistor for a project that doesn't need to last forever and is just a fun project anyway. But I have not worked with the higher power LEDs before.
Since this is just a fun project and don't care if it lasts forever can I get by with just leaving the 5.6ohm out as a current limiter?