Specification:1.6061T Durable Aluminum Reflector with smooth reflector face.2. Max output : 3000 lumens (MAX ，when using 18650 battery)3. Lifetime-above 10，000hrs4. 5-mode adjustable Brightness，High/Mid/Low/Strobe/SOS5. Super Bright， blinding Effect6. "O" ring sealed， Waterproof， can be used in rainy weather (Don't put it into the water).7. The ON/OFF push button switch is provided in the end cap.8. Water resistant.9. Super Bright， blinding Effect .10. Suitable for Self Safety， hunting， cycling， climbing， camping and outdoor activitySave 40% power compare with Xenon and Luxeon Bulb.adjustable focus range for different usageZoom: x1 x25 x500 x1000 x2000Operate Voltage: 4.2 VSize(mm) :136.3mm(Length，can stretch to extent up to 157)x40mm(Head)x26.8mm(Body diameter)Battery Type:1x18650 or 3xAAABody Color: BlackPackage Includes:1 x XM-L T6 Led Ultra bright Adjustable Focus Flashlight1 x AAA battery holder (for using AAA battery)1 x Plastic Tube (for using 18650 battery)