ESMARTER COB Keychain Light 8 Modes Rechargeable LED | Camping

ESMARTER COB Keychain Work Light – Your Compact, Always-Ready Light Source

Meet the ESMARTER COB Keychain Work Light — a powerhouse of portable illumination that fits right on your keys. Whether you're navigating a dark campsite, heading out for an evening run, or need a handy light during a power outage, this ultra-compact LED light delivers bright, versatile lighting whenever and wherever you need it. Made in Mainland China.

8 Lighting Modes for Every Situation

Cycle through 8 convenient modes with a single button — one-handed operation makes switching fast and effortless:

• Mode 1: High-brightness cool white light
• Mode 2: Low-brightness cool white light
• Mode 3: High-brightness warm white light
• Mode 4: Low-brightness warm white light
• Mode 5: Steady red light – ideal for signaling or alerting others
• Mode 6: Flashing red light – great for high-visibility safety situations
• Mode 7 & 8: Additional brightness settings for fine-tuned control

Built-In Battery with Display Indicator

The integrated 500mAh lithium battery keeps you lit for up to 2 hours at full brightness or up to 5 hours at low brightness. The built-in battery display lets you know exactly how much charge remains — so you're never caught off guard. Recharge via Type-C USB in approximately 1 hour.

Key Features at a Glance

• 🔆 High-lumen COB LED technology for broad, powerful illumination
• 🔋 500mAh built-in rechargeable lithium battery with charge indicator
• ⚡ Type-C fast charging – fully charged in ~1 hour
• 💡 8 versatile lighting modes including warm white, cool white & red signal
• 🔑 Keychain clip – attaches easily to keys, bags, or belt loops
• 🏕️ Perfect for camping, hiking, running, emergencies & everyday carry (EDC)
• 🖐️ One-handed operation – simple single-button cycling
• 📦 Model: W5138 | Battery Type: Lithium Metal (included)

Perfect for Outdoor Adventures & Everyday Carry

Compact enough to forget it's there, powerful enough to light up your path — the ESMARTER keychain light is the ultimate EDC companion for hikers, runners, cyclists, campers, and anyone who values preparedness. The red signal modes add an extra layer of safety during low-visibility outdoor activities.

For outdoor safety tips and night-time hiking guidelines, visit the National Park Service's guide to night activities.

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Frequently Asked Questions

Q: How do I charge the ESMARTER COB keychain work light?

A: The keychain light charges via a standard Type-C USB cable. Simply connect it to any USB power source (wall adapter, power bank, laptop, etc.) and it will be fully charged in approximately 1 hour. The battery display shows your current charge level at a glance.

Q: How many light modes does the keychain light have and how do I switch between them?

A: The light features 8 modes including high & low cool white, high & low warm white, steady red, and flashing red. Simply press the single button repeatedly to cycle through each mode — easy one-handed operation makes it fast and intuitive even in the dark.

Q: How long does the battery last on a single charge?

A: On the highest brightness setting, the 500mAh built-in battery provides approximately 2 hours of continuous use. On the lowest brightness setting, you can expect up to 5 hours of runtime. The integrated battery indicator displays remaining charge so you always know when to recharge.

Q: Is the keychain light suitable for outdoor activities like camping and hiking?

A: Absolutely! The ESMARTER keychain work light is designed as a versatile EDC (everyday carry) tool ideal for camping, hiking, trail running, cycling, and general outdoor use. Its compact clip-on design, multiple brightness levels, and red signal modes make it a practical safety and convenience accessory for any outdoor adventure.