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Streamlight Siege X USB 2-in-1 Lantern/Flashlight

In stock in approximately 9 days.


Siege X USB 2-in-1 Lantern/Flashlight

The ultimate rechargeable lantern. This 2-in-1 lantern/flashlight combo provides 360° of light to illuminate a large area or a focused beam to light your path. 

MULTI-FUEL innovation - uses Streamlight’s 18650 USB battery; also accepts CR123A lithium batteries, ensuring you’ll always have a beam when you need it.

The Siege® X USB or Siege® X lantern features three lighting modes and multiple lighting levels. Multiple white LEDs provide smooth lantern lighting, three red LEDs are used to preserve night vision and a C4® power LED for the flashlight mode.

The lantern can use either a proprietary Streamlight 18650 USB rechargeable cell or two CR123 disposable batteries and has a battery level indicator built into the on/off button.

The D ring on the bottom makes it easy to hang the light for large area lighting needs.

Battery replacement is a breeze, a quarter turn is all it takes to remove the bottom battery cover.

  • CASE MATERIAL: Tough Polycarbonate thermoplastic construction with elastomer over mold.
    • Available in Coyote color.
  • DIMENSIONS: Base Diameter: 2.12 in. (5.38 cm) Height: 4.35 in (11.05 cm)
    • 7.2 oz (204.12 grams) with 18650 battery (Included with purchase)
    • 6.8 oz (192.78 grams) with CR123 batteries (Not included with purchase).
  • LENS: Unbreakable polycarbonate lenses.
  • LIGHT SOURCE: Lantern: Multiple white LEDs, three Red LEDs, and One (1) White C4® LED technology, impervious to shock with a 50,000 hour lifetime for the Flashlight mode.
    • Lantern Lumens:
      High: 325 Lumens
      Medium: 170 Lumens
      Red High: 1.6 Lumens
      Red SOS flashes at “Red high lumen level”
      Low: 30 Lumens
    • Flashlight Lumens, Candela, Distance
      High: 300 Lumens, 6000 Candela, 155m
      Low: 40 Lumens, 900 Candela, 60m
  • ON/OFF:
    • White Output Modes = Low, Medium, High and Off
    • Red Output Modes = High, Flash SOS and Off
    • Flashlight modes = Low, High and Off

      To change the lanterns color from white to red, press and hold the on/off button for two seconds until the light changes color. Release the button.
      To then change to Flashlight mode, press and hold the on/off button for two seconds until the light changes to the flashlight beam. Release the button.
      ​To change back to Lantern mode, press and hold the button.

      Switching Output Modes: Pushing the button within 1.5 seconds of the last button push will change the light level. You may sequence through all light levels and then to off.
    • NOTE: If you wait more than two seconds between button pushes, the next press of the button will turn the light off.
  • RUN TIME: All claims to 10% of initial lumen output.
    • Lantern: High: 4.5 Hrs, Med: 7.75 Hrs, Low: 25 Hrs, 
    • Flashlight: High: 3.5 Hrs, Low: 25 Hrs
    • Red: 22 Hrs, SOS: 90 Hrs 
  • BATTERY: One SL #220115 18650 Rechargeable cell or Two CR123 Lithium batteries.


  • C4® LED technology for extreme brightness.
  • Battery Indicator in the on/off button: Changes from Green to Yellow to Red and then Flashing Red when the batteries are at the end of their useable life.
  • IPX7 rated for water proof operation. (1 meter submersion) 2 meter impact resistance tested.
  • D–Ring on bottom for easy attachment. Spring loaded to fold out of the way when not in use.
  • Ergonomic handle: Makes the light easy to carry and is designed to hook on any edge or bar.

WARRANTY: Streamlight's Limited Lifetime Warranty

APPROVALS: Meets applicable European Community directives. CEC Compliant (Siege® X USB only).

Lithium Battery Safety Warning: Streamlight recommends the use of Streamlight, Panasonic, Sanyo, or Energizer CR123A or Duracell 123 with its non-rechargeable lithium battery products. For TLR-3 and TLR-4 series, Streamlight recommends the use of Panasonic, Sanyo, Duracell or Energizer size CR2.

Use of other batteries or mixing of used and new or different brand batteries may present a risk of leakage, fire, explosion and serious personal injury. Do not recharge, misuse, short circuit, improperly store or discard, disassemble or heat above 212°F (100°C). Keep away from children.

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