Hello, I have an led project using 3-4 300ma leds. Currently they are wired in series and powered by an a23 battery inside of a cyalume industrial chemlight. Call it a rave stick if you want. I'm trying to incorporate pwm functionality without sacrificing the form factor as feel and weight is a priority. What's the smallest pwm module that's available or would I have to design a circuit? I also am trying to get the pwm modes (on, low power strobe, and off) controlled by a button and not a potentiometer, similar to what inova's microlights used to do. Any help would be appreciated. I have many more questions and I can provide more details if needed. Thank you for your time.