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Sofirn LT1S Manual
Thank you for purchasing Sofirn products.
if you need assistance.
Send email to us@sofirnlight.com (amz us order)
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Sofirn LT1S is a powerful, versatile Lantern for indoor use and various outdoor activities
like camping, hiking, fishing. It uses one 21700 battery and features a USB-C port for
convenient charging, 2700K LED*18, 6500K LED *18 and Red LED*4 with up to 500 lumen.
It was born from LT1, they share the same diffuser but LT1S has buck driver, smaller size,
furthermore, LT1S enables RED led mode.

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Summary of Contents for Sofirn LT1S

  • Page 1 It uses one 21700 battery and features a USB-C port for convenient charging, 2700K LED*18, 6500K LED *18 and Red LED*4 with up to 500 lumen. It was born from LT1, they share the same diffuser but LT1S has buck driver, smaller size, furthermore, LT1S enables RED led mode.
  • Page 2: Specifications

    ANSI/NEMA FL1 Chart Mode Turbo High Medium Moon 1hz Strobe Luminous Flux [lm] 500 lm 150 lm 50 lm 10 lm 1 lm (6000K-2700K) Runtime 2h 20min 90h 3min 555h (6000K-2700K) Runtime 2h 30min (Red Light) Beam Distance [m] 18 m 11 m (6000K-2700K) Peak Intensity [cd]...
  • Page 3: Battery Specifications

    It also turns off automatically if the voltage gets too low. Please recharge the battery.  Advanced Temperature Regulation (ATR) technology: As the temperature rises, LT1S is programmed to automatically step down and step up the brightness. These thresholds are set at 45°C, 55°C and 65°C.
  • Page 4 The LT1S can also operate as a directional light (one side emitters light up, the other side don’t); double click to activate, additional double clicks cycle through: one side on - the other side on - both on.
  • Page 5: Safety Instructions

    The LT1S can also operate as a directional light (one side emitters light up, the other side don’t); double click to activate, additional double clicks cycle through: one side on - the other side on - both on.
  • Page 6: Troubleshooting And Maintenance

    Troubleshooting and Maintenance  Disassembling the sealed head can damage the flashlight and voids the warranty.  Sofirn, Ltd. recommends using high-quality brand batteries. Damage by battery leakage voids the warranty.  Remove the battery if the flashlight will not be used for an extended period of time.

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