Why do you want to switch LEDs on/off in 1/1000000 of a second.
It surely has nothing to do with human vision.
Is this a science experiment?
No its not human vision, its camera vision.
I need to switch at that speed to get rid of the sun interference, it all works well but I would just like to get the most out of my Leds that I can.
Post a link to your led specsheet.
The one that i get off the suppliers page is incorrect because it says they have a forward voltage of 1.4v which is not the case its 3v, but the leds switch fine on there own.
Just put a resistor in series with it, sized so you get the right amount of current.
Do you think it will be fine if I put a slightly smaller resistor to compensate for the voltage drop of the battery, I think I need about a 4ohm resistor, I think the leds can run at a slightly higher current because of the switching they dont get that hot?
Or I could add a voltage regulator to take my 12v battery down to 10v so when the voltage drops its still the same so then the current should say stable?
What the hell are you making?
Im trying to detect ir leds outdoors with a small camera and trying to not detect the sun which is working, I just would like to run the leds at maximum efficiency.