gmnstrunr37,
Brenner is a German word for burner, which can mean light or lighting element in that situation. So, where it says Aviator Brenner, he means the Aviator with the bulb on (as well as the LED), where he says Aviator LED, it is just the LEDs on. The Aviator is a two stage light, when you turn it part way on it is just LEDs, when you turn it all the way on it is LEDs in conjunction with a 50 Lumen light bulb.

A little Deutsch/Surefire lesson for you. <img src="/images/graemlins/wink.gif" alt="" />