it’s Worth consideration!
This review is from: Surefire A2 Aviator Tactical LED
While this light is expensive, I believe it is one of the best out there.
I had mine around my neck, via included lanyard (take off the plastic ring and put lanyard directly on light to ensure you do not lose A2), during the long weekend N.E. blackout of 2008. It was invaluable to have and the red LED saves battery to maximize use.
The design enables the light to be on continuous color or white light by turning the front end and rear, or keep it ‘off’ for one handed thumb use. Although I used a Mini Mag for deployment to Iraq, I wish I had this light on my web gear.