Sofirn LT1S 21700 Lantern

The Sofirn LT1S Lantern is a compact, powerful, and versatile lighting solution designed for camping, outdoor adventures, emergency preparedness, and everyday use.

At the heart of the LT1S is a single high-capacity 5000mAh 21700 battery, which powers a dual-LED system comprising four high-efficiency red LEDs and a cluster of 36 CSP1919 white LEDs. This configuration delivers a maximum output of 500 lumens, casting a bright field of light up to 18 metres in Turbo mode—ideal for illuminating large tents, open shelters, or emergency scenes. The 360° illumination design ensures even light distribution, eliminating dark corners and providing consistent visibility across entire spaces, whether it’s a family tent, a cabin interior, or a work site.

What sets the LT1S apart is its advanced light customization. With five distinct brightness levels and three adjustable color temperatures—ranging from warm (2700K) to cool (6500K)—users can tailor the lighting to suit their needs. The warm setting is perfect for creating a cozy atmosphere during evening campfires, while the cool white light enhances visibility for tasks like reading or setting up gear. The inclusion of a red light mode is especially valuable for preserving night vision, making it ideal for stargazing, nighttime navigation, or stealthy operations in the wild.

The lantern’s long runtime is one of its standout features. On the lowest setting, it delivers up to 555 hours of continuous illumination—perfect for extended trips or emergency scenarios where power sources may be limited. This impressive endurance is made possible by the efficient 21700 battery, which can be recharged via USB-C, a modern and widely compatible charging standard. The USB-C port also allows the LT1S to act as a portable power bank, capable of charging smartphones, GPS devices, or other small electronics in remote locations—making it an essential multi-tool in any outdoor kit.

Built for toughness, the LT1S is constructed from solid aluminum alloy, offering excellent resistance to impact, corrosion, and extreme temperatures. Its IPX8 waterproof rating means it can be submerged in water up to 1 metre deep for 30 minutes without damage—ideal for rainy conditions.

The lantern features a user-friendly interface with intuitive controls, including a top switch for easy access to all modes. With eight dimming levels, users can precisely adjust brightness to match their environment, from a soft moonlight glow to a full-brightness tactical strobe for signaling or emergency use. The combination of high output, extended runtime, and robust build quality makes the LT1S a dependable companion for hiking, backpacking, car camping, or emergency preparedness.

Whether you're a seasoned outdoor enthusiast or a practical homeowner looking for a reliable backup light, the Sofirn LT1S delivers exceptional value. Its lightweight design—weighing just 337g including the battery—makes it easy to pack in a backpack or store in a vehicle. The combination of powerful lighting, long battery life, and multi-functional utility ensures it’s not just a lantern, but a complete outdoor lighting and power solution.

Light Source: 36 x CSP1919 white LEDs + 4 x Red LEDs

Maximum Output: 500 lumens (Turbo mode)

Beam Distance: Up to 18 metres (Turbo mode)

Illumination Pattern: 360° full coverage

Battery Type: 5000mAh 21700 rechargeable lithium-ion battery (included)

Water Resistance: IPX8 rated (submersible up to 1m for 30 minutes)

Weight: 337g (including battery)

Dimensions: 145mm (height) × 110mm (diameter)