Left to right: SureFire L2, A2, L1 and E2 defender.

I have 4 Sure-Fires. I have a E2 defender which has an incandescant bulb. It has the crenulated (sp) bezel for use as an impact weapon. I dont care for it as the bezel hurts me when I carry in pocket. I keep it clipped to my truck visor. The A2 Aviator has an incandescant bulb and 3 red leds. It was my favorite light until I got my L1. The A2 is nice but I would recommend the white/white led. I love my L1, I carry it daily and use it daily. Has 2 outputs, high/low. On low it will run a very, very long time. It only takes 1 battery that I have yet to replace in 6 months. I bought the L2 thinking bigger = better. Wrong. It puts out about as much light as far as my L1, only a wider circle. I highly recommend the L1/A2. Working in EMS for almost 12 years and being a gear queer, I have owned many Mag-Lights, Streamlights and Surefires. My top picks are the L1 and the Streamlight Stylus leds.