Output and Runtime

Four brightness levels ("Lower low" enabled)
XM-L2 U4
Led lumen: 4055/232/16/2

With "Lower low" function disabled, lowest output will increase by about three times and the second lowest output will be increased by two times.
Runtime ("Lower low" enabled)
Runtime: 1/2.2/35/150 hours
Runtime ("Lower low" disabled)
Runtime: 1/2.2/12/100 hours
Five hidden auxiliary outputs
Strobe(Var)/Flash(Hi)/S.O.S.(Fast)/Beacon/Flash

Battery Type

1xAA or 1x14500 li-ion
Compatible battery size
Diameter: 14-14.6mm
Length: 50-51.2mm

XM-L2 U4
Center lux: 1550 lux
Beam distance: 86 yards / 79 meters

Dimensions

Head Dia.
0.7 inches (17.5 mm)
Body Dia.
0.65 inches (17 mm)
Length:
3.4 inches (87 mm)
Weight:
0.85 ounces (24 grams)

What's included

Stainless steel bezel w/ durable dark titanium coating
Spare o-rings
Stainless steel pocket clip (Titanium coated)
User Manual
Rigid Nylon Holster w/ self-retention device and flip
Mil-Spec paracord lanyard w/ quick attachment clip

Operations

Basic - Press on the switch button until it clicks to turn on the flashlight. Press the switch again until it clicks to switch off the light.
Access output groups 1 & 2 - Tight the head to access group 2 output. Loose the head to access group 1 output.
Switch between output level - With the flashlight on, slightly press the switch and release (within 1s) to switch to the next output.
Toggle "Lower low" output levels - Toggle this setting starting with head loosen, turn on the light, wait for at least one second, and then repeat tight and loose for three times.
Toggle mode memory - remebers the last output in group 1. To toggle this setting, with head tighten, turn on the light, wait for at least one second, and repeat loose and tight for three times.

Controls

Other features
LED Copper MCPCB star board with DTP technology and direct heat path
User replaceable glass lens
Battery reverse polarity protection
Ultra low internal resistance phosphor bronze springs (silver coated)
Tail stand
Warranty
Ten years performance guaranteed warranty