Tetra USB Charger + Lantern + Flashlight™

  • Rechargeable, collapsible, and highly water-resistant (IPX 5) lantern and flashlight doubles as a charger for USB devices such as a phone, camera, or GPS.
  • Adjustable brightness up to 170 lumens.
  • Burns on high for 5 hours or low for up to 120 hours.
  • Rechargeable Li-Ion battery.
  • Dimming switch adjusts 3 lighting modes from high to low light to S.O.S. emergency strobe.
  • Durable, water-resistant ABS/TPE housing.
  • LED light indicates battery level and charging status.
  • Dimming switch and base of globe glow in the dark.
  • USB cable included.
  • D-ring for hanging.






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  • Battery Type: 3.7V 2.6AH Li-Ion rechargeable
  • Bulb Type: Super bright R4 XP-G2 CREE LED
  • Battery Life—up to: 5 hours on high. Up to 120 hours on low.
  • Highly water resistant: IPX 5
  • Beam projection: 33-459' (10-140 m)
  • Dimensions: Open: 6.3" high x 2" diameter (16 cm x 5 cm) Closed: 4.5" high x 2" diameter (11.5 cm x 5 cm)
  • Weight: 4.3 oz. (123 g)


    Do not look directly into the LED light.

Download Instructions (PDF)


Plug the USB Micro end of the charging cord into the base of the Tetra. Plug the USB end into a wall socket adaptor, USB car charger, or laptop. Charge with Tetra lantern off.


Battery Indicator Light

CHARGE INDICATOR: Light flashes while charging the Tetra and turns solid once fully charged. Low Battery Warning: Light is solid while the Tetra is on and begins flashing once the battery charge is less than 20%.

BATTERY LEVEL INDICATOR: Light indicates battery level when button is pressed once.


Insert the USB end of the device’s approved USB charging cord into the base of the Tetra and the other end into the device.

Battery Indicator Light

CHARGE INDICATOR: Light is solid while charging the device and turns off once device is fully charged.


Use the button on the base of the Tetra to operate:

Turn On/Off

Press once to wake up Tetra and for battery indicator. Once activated, press power button to turn on brightest LED setting. Press again to turn off.



Turn Tetra on and then press and hold to control lighting from bright light to low light.


Turn Tetra on and then press and hold until light flashes (about 8 seconds).

Lantern & Flashlight Mode

The Tetra can be used as both a lantern and a flashlight. Expand globe to enable lantern mode. To enable flashlight mode, collapse the globe.


Ensure that the lantern is clean and dry before and after each use and before storage. DO NOT store the lantern wet.DO NOT heat. Use damp cloth to clean the lantern. DO NOT submerge.


This product has a limited 1 year warranty, to the original purchaser, to be free from defects in materials and workmanship. Follow all product instructions and warnings as warranty does not cover damage due to misuse, improper care, accidents, or alterations. See www.ucogear.com for further details, limitations, and restrictions.


IMPORTANT: Read all instructions and warnings before using. Adult supervision required.


To be used under the direct supervision of an adult. Misuse could result in injury to the user or damage to the Tetra. Damage due to misuse is not covered under warranty.


If the Tetra does not work properly:

  • Ensure USB charging cord is plugged into corresponding port and connected.
  • Follow directions carefully to activate different lighting modes.