Looks something like the generic 3xAAA XML2 I bought off ebay a couple months ago for about $12, very bright, very cheap, mine is I think 5 modes with strobe and SOS, but its so big I rarely use it. I recall people calling it a 501b or 502b clone.
heres the specs they gave
60mm 5-function LED Flashlight with 200 Lumens of Max. Output and 800 Yards of Effective Illumination
Best in class with CREE Q5 LED
Long Distance Spot Focus Lamp Produces Highly Focused Light Beam
5-function Integrated Reflector & Bulb (IRB) with 3 Brightness levels, Strobe and Signal Functions
Interchangeable Light Body
Material: Aluminum
Flashlight Bulb Type: 60mm LED IRB
Flashlight Voltage(V): 6
Flashlight Max. Lumen(Lumens): 200
Flashlight Battery Operating Time: 1.5 hrs+
Switch Operating Type: Push-button
Flashlight Focus: Preset
Light Source Type: LED
Max. Output(Lumens): High Brightness: 200
Medium Brightness: 100
fast strobe
Battery Operating Time: High Brightness: 1.5hrs+
Medium Brightness: 3hrs+
fast stobe: 6hrs+
Battery Type: 18650 Battery(Not Included)
Reflector Diameter: 60mm