> A FET would consume only a small fraction of 1W. A push-pull
> functionality is not needed for this thread's subject in my opinion

For a simple remote control like the OP wants a low-side FET or
transistor is all that's needed. I suggest the ZTX transistors because
they are superior in this application IME to comparable transistors
(eg BC337, BC639). They have low saturation voltage and can
switch their rated current more quickly. For instance with battery-
powered transmitters with a reservoir cap, the leading edge of the
pulse is sharper. ie the battery's and/or capacitor's energy is initially
more efficiently dumped into the LED, giving a better range

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