Honestly, LED-s are my major interest in flashlights so far. May be I'll pickup HID or two later, we'll see but for now LED-s are absolute majority in my collection. All incandescent onesI've had before I've converted to LEDs, and for now the only incandescent left in my arenal is Surefire M3. Although as far as I know thereis a LED converter for that too :) Sooner or leter I'll try that one as well.