I'm starting a little Arduino project and need some IR-leds therefore. Goal is to control a RGB Led Strip Controller that is normally steered by a simple remote control by Arduino Duemilanove.
I need the IR-Leds to cover at least 2-4 meters of distance, what i don't want is an additional power supply (so just run the Arduino / IR-Led(s) via the USB interface) or other parts (like transitors / etc).
As i saw there are different kinds of IR-leds (wavelengths 850 - 940nm, 20-100 Ma power consumption, 10-45 degrees, etc...).
Which ones would fit best for this project? Is / can there a benefit if i would use multiple IR-leds?