ESMARTER K31 USB Rechargeable Zoomable LED Flashlight

ESMARTER K31 USB Rechargeable LED Zoomable Flashlight

Meet the ESMARTER K31 LED Flashlight — a rugged, rechargeable torch built for campers, hikers, cyclists, and everyday adventurers. With up to 1,000 lumens, a 1,200 mAh built-in lithium battery, and a zoomable beam that reaches 100–200 metres, this compact aluminum-alloy flashlight is ready for whatever the outdoors throws at you. Made in Mainland China.

Key Features

• USB Rechargeable: Includes a Micro USB charging cable — no disposable batteries needed. Simply plug in and recharge from any USB port, power bank, or wall adapter.
• High-Performance XPE.2 LED: Delivers up to 1,000 lumens of bright, long-lasting illumination with a rated LED lifespan of up to 100,000 hours.
• Zoomable Beam: Twist the head to zoom in for a tight, long-distance spotlight (100–200 m) or zoom out for a wide flood beam — perfect for close-range tasks around camp.
• 4 Lighting Modes: High, Low, SOS, and Slow Flash — cycle through with a quick button press. Note: To activate Slow Flash mode, press and hold the switch for 1.5 seconds.
• IPX-4 Waterproof: Splash and rain resistant, making it reliable in wet weather. (Not designed for submersion or diving.)
• Drop-Resistant Aluminum Alloy Body: High-strength aerospace-grade aluminum construction withstands drops from up to 2 metres.
• Long Runtime: Up to 5–8 hours of use per charge on the 1,200 mAh model.
• CE & RoHS Certified: Meets international safety and environmental compliance standards.

Specifications

How to Use

1. Charge First: Fully charge the built-in lithium battery via the Micro USB cable before first use.
2. Zoom: Extend the flashlight head to narrow the beam for long-distance spotlighting; retract it for a wide-area flood beam.
3. Mode Switching: Press the centre switch to cycle through High, Low, and SOS. Hold for 1.5 seconds to activate Slow Flash mode.
4. Outdoor Ready: Safe to use in rain (IPX-4). Avoid submerging in water.

What's in the Box

• 1 × ESMARTER K31 LED Flashlight
• 1 × Micro USB Charging Cable

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For guidance on safe use of portable lighting and outdoor preparedness, visit the Ready.gov Emergency Supply Kit Guide — a trusted resource from the U.S. Department of Homeland Security.

Frequently Asked Questions

Q: Is the ESMARTER K31 flashlight truly waterproof for outdoor use?

A: Yes — the K31 carries an IPX-4 waterproof rating, meaning it is splash and rain resistant and works normally in wet weather conditions. However, it is not designed for full submersion or underwater (diving) use, so avoid dropping it into bodies of water.

Q: How do I charge the K31 LED flashlight and how long does it take?

A: Connect the included Micro USB cable to any USB power source — a wall adapter, laptop, power bank, or car charger. We recommend a full charge before first use. Runtime after a full charge is 5–8 hours depending on the lighting mode selected.

Q: How do I switch between lighting modes on the K31 flashlight?

A: Press the centre switch button to cycle through High, Low, and SOS modes. To activate the Slow Flash mode, press and hold the switch for approximately 1.5 seconds. The K31 (XPE.2 version) offers all four modes: High, Low, SOS, and Slow Flash.

Q: How does the zoom function work on this LED torch?

A: Simply extend or retract the flashlight head to adjust the beam. Pulling the head out narrows the beam into a focused spotlight ideal for illuminating targets 100–200 metres away. Pushing the head in widens the beam into a flood mode, perfect for close-range area lighting around a campsite or workspace.