Alkaline batteries are terrible for sitting in a car in hot and cold weather. Lithium AA batteries would be better - if you had to use a light that takes AA. but after replacing them 2 or 3 times - you'd just assume buy a rechargable 18650 (these are lithium ion).
Honestly - if you need real far throw - that Jetbeam BC40 mentioned earlier in the thread is still a goodie. It's cheaper now too.
If you just want a light that is in your car for emergencies, then hell, this $7 light I just mentioned above that is sold on Amazon is more than good enough (it was like $1 cheaper a couple of weeks ago):
http://www.amazon.com/gp/product/B00CE1EFCM/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1I was using an extra Lumapower Trust 2 in my car, but I switched it out to this Ultrafire I got off of Amazon. It has a adjustable head that can make a spotlight or a flood. I had another cheap chinese light that did this using AAA batteries a couple years back - but it wasn't that good. I am very satisfied with this light. Only negative is that when you turn it on and off, it doesn't come back at the setting you last left it. But, that's no big deal when you consider the price.
Visit: Texas Gun Forum!!!!
http://texasgunforum.com[This message has been edited by MisterShipWreck (edited 7/17/2014 12:03p).]