ESMARTER Portable COB Work Light Keychain – Triple Light Source, Type-C Charging

Meet your new everyday carry essential — the ESMARTER Portable COB Work Light Keychain. Compact enough to clip onto your keys yet powerful enough to illuminate up to 50–100 metres, this multi-functional lamp is built for campers, commuters, hikers, and anyone who needs dependable light at a moment's notice. Triple COB light sources deliver bright, wide-angle illumination — all from a device no bigger than a key fob.

Key Features

Triple COB Light Sources: Three independent COB panels give you wide, powerful illumination for worksites, night camping, roadside emergencies, and more.
Type-C Fast Charging: The universal Type-C port means fast, fuss-free top-ups using the same cable you already carry for your phone or tablet.
Built-in Rechargeable Battery: Battery included and ready to go — no disposable batteries needed, saving you money and reducing waste.
Multi-Functional Key Holder: Doubles as a full key organiser, keeping your keys tidy and your light always on hand.
Waterproof Construction: Weatherproof housing handles splashes and rain so it stays reliable whether you're caught in a downpour or working in damp conditions.
Lightweight ABS Body: Durable ABS plastic body is impact-resistant and feather-light so you'll barely notice it on your keyring.
5W Output / 50–100m Lighting Distance: Punches above its size with a 5W output and a usable beam range of 50 to 100 metres.
CE Certified: Meets European safety standards for consumer electronics.

Specifications

Brand	ESMARTER
Model	JB2399
Body Material	ABS Plastic
Wattage	5W
Lighting Distance	50–100 m
Charging Port	Type-C
Battery	Built-in Rechargeable (Included)
Waterproof	Yes
Certification	CE
Country of Origin	Made in Mainland China

Perfect For

Outdoor camping & hiking
Roadside & vehicle breakdowns
Workshop & DIY tasks
Power outages & emergencies
Everyday carry (EDC) enthusiasts

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For general outdoor safety and preparedness tips, visit the U.S. Department of Homeland Security – Ready.gov resource centre.

Frequently Asked Questions

Q: How long does the ESMARTER COB Work Light Keychain take to fully charge via Type-C?

A: Charge times vary depending on the power adapter used, but with a standard 5V/1A Type-C charger the built-in battery typically reaches full charge within 1–2 hours, giving you extended runtime before the next top-up.

Q: Is this keychain work light genuinely waterproof, or just splash-resistant?

A: The ESMARTER JB2399 features a waterproof construction designed to withstand rain and splashes during outdoor camping and everyday use. It is not rated for full submersion, so avoid prolonged underwater exposure.

Q: Can I use all three COB light sources at the same time?

A: Yes — the triple COB light sources can be activated together for maximum brightness over a 50–100m range, or you can cycle through modes (where available) to conserve battery when only a focused beam is needed.

Q: How does the key holder function work?

A: The multi-functional key holder integrates a sturdy loop or organiser mechanism into the lamp body, letting you stack and secure multiple keys neatly alongside the light — so your EDC stays compact and everything is in one place.