Malkoff M61 LED Conversion for Surefire Outout is 425 Measured Out the Front Lumens Full Output Runtime is Approximately 1.25 Hrs on Two CR123 Batteries With a Long Taper Custom Orange Peel Reflector Designed Specifically for SureFire 6P, 9P, 6Z, Z2, Z3, C2, C3, G3, and G2 Flashlights Input Voltage is 3.4 - 9 Volts, Protected Against Reverse Polarity