EDIT: Welcome to CPForums! :wave:
I'm sure your familiar with the praises for the surefire A2 on the forum for awhile now, but many fail to realize that the value of the A2 lies in the applications it is used in.
To decide which light to buy depends on your preferences in a light, for many cost is the number one criteria, performance being somewhere between runtime and duration. its best to do a little research on review sites such as user Quickbeam's
flashlightreviews, a site greatly valued and depended on for infos on lights, and user the_LED_museum's
site also.
the
A2's expensive because
1-Its a surefire
2-only regulated xenon you can find as a flashlight
3-because its regulated, the xenons bulb life is extended and the output gives you quite possibly the best color rendition compared to any other xenon light in size
but the shortcoming of the A2 is
1-not meant to be a "throw" light, as for flood, It does the job adequately compared to other flood lights...but the LEDs are far from white
2-Batteries don't last too long on main beam [average 40-70 minutes,
source from bawko], so If your application needs alot of light for an extended period of time, then the A2 may not suit your needs.
3-Limited versatility, as there are no "levels" on the A2, so you either have low light suitable for dark adapted eyes or a power xenon beam...with no selections in between.
the
streamlight PP 4AA luxeon, sounds like an ideal option, for one thing its cheap, well built, and regulated and for another its once considered the best "throw" led light before CREEs popped in. lighting up addresses and street signs wont be an issue with this light, no only does it have good throw, but theres also enough spill light to increase its functionality.
Personally I've never used the fenix series so I can't speak for those
If you will be using the light regularly buying cr123as may be a bit expensive, sticking with the AAs might be of a better option for you. Although it may seem bulky, if your interested in the same performance as the SLPP4AA luxeon, I would recommend the
3C version.
the arc AAA wont give you the same output as the luxeons, but it will provide ample light in dark nights and its generally to have a backup light with you at all times no matter how dependable
you think your lights may be.
remember, when Murphy strikes, two is one and one is none.