Lately I have been working with a sample of this outstanding 750 lumen adjustable tactical light.  When my book "Own the Night-Selection and Use of Tactical Lights and Laser Sights" was published in 2009, the top end LED lights on the market were at a very respectable 120 lumens.  I predicted that the technology would continue to improve and boy did it ever!! 

What I like about the TAC-OPS T4 in particular is its adjustment system.  By simply turning a dial on the light head, one can switch from Low to High to OFF (which River Rock calls Safety-Lock - which it is).  You don't want a light of this power to be left on in a confined space-the buildup of heat could be disastrous.  Also the High Setting is way too much power for close in work that you would use a day to day flashlight for in police work-somewhere in the 100 lumen or less range.  But that 750, oh my what an eyeball scorcher for tactical use, and it blankets a large area, giving you a large area of coverage and effect in dynamic entry or search situations.  It would be excellent for attachment to an AR-15.

Other likes?  Price!.  Retail is $99.95.  Batteries? Only needs two CR123 lithiums to power it and not 3. Size?  Very compact for power output.

I highly recommend this light for your consideration.

www.riverrockdesigns.com