On SUREFIREs facebook page we found news about the Scout Light Ultra product line. They are now available with 500 lumes output!
M600U-A
Compact and extremely powerful, the M600 Ultra Scout Light®uses a virtually failure-proof LED to produce 500 lumens of output, and it continues producing blinding tactical light for 1.5 hours on a set of batteries. This brilliant output is focused by a Total Internal Reflection (TIR) lens into a far-reaching beam with an intense 13,000-candela central area that also provides significant peripheral illumination, making it ideal for close- to longer-range applications.
M620U-A
Compact and extremely powerful, the M620 Ultra Scout Light®uses a virtually failure-proof LED to produce 500 lumens of output, and it continues producing blinding tactical light for 1.5 hours on a set of batteries. This brilliant output is focused by a Total Internal Reflection (TIR) lens into a far-reaching beam with an intense 13,000-candela central area that also provides significant peripheral illumination, making it ideal for close- to longer-range applications.