I'm currently designing a multi-function flood and spot light. I will be using probably around 6 XML LEDs with small reflectors for the flood function, but I'm not sure what LED would work best for spot. I am hoping to use an aspheric lens with whatever LED I choose for spot.
What LEDs provide the best throw when used with an aspheric lens? What size lens would give me the best throw/size ratio? Is there any optic out there that would provide better throw than an aspheric lens?