Item title: Mastiff Z3 Zoomable Adjustable Focus 3W 850 nm Infrared Radiation IR LED Lamp Night Vision Aluminium Flashlight Torch
Model: Z3
Color: Black
Material: 6061T aircraft Aluminum HA III hard anodized construction
Lens: Clear anti-reflective coating magnifying acrylic(PMMA) lens
Lamp: 3 Watt 850nm 3-chip UV LED assembly
IR range: Up to 50 meters
Run time: 2.5 - 6.5 hours(depends on battery capacity)
Lifespan: Average 10,000 hours
Mode: On - off
Operating voltage: 3.2V - 4.5V
Power supply(NOT included): 1 x 18650 Li-Ion battery or 3 x AAA Alkaline batteries
Switch: End cap press on-off switch
Dimension(mm): 121 (length) x 26(body) x 34(head)
Weight(g): 104
Rotate the flashlight head part to get zoomable IR light
Shock resistant, slip-resistant body design
A nylon lanyard, plastic battery gap adaptor and AAA battery holder are included
Capable of standing up securely on a flat surface to serve as candle
Ordinary waterproof standard with O-ring sealed, splash proof, be OK to use in rainy days
Step down constant current driver, high efficiency with dual mode DC-DC regulator. Replace battery when the light goes dim

NOTE:

The LED chip from this flashlight turns red by naked eyes when the light on, however the light beam need to be detected by night vision scopes or non-IR filter cameras