{"product_id":"usb-rechargeable-led-headlamp-5-modes-waterproof-super-bright","title":"USB Rechargeable LED Headlamp – 5 Modes, Waterproof, Super Bright","description":"\n\u003ch2\u003eESMARTER T21 USB Rechargeable LED Headlamp – Super Bright, 5 Modes, Waterproof\u003c\/h2\u003e\n\u003cp\u003eMeet your go-to hands-free lighting companion for any adventure. The \u003cstrong\u003eESMARTER T21 LED Headlamp\u003c\/strong\u003e packs powerful T6 LED bulbs, a 180° adjustable beam, and a long-lasting 18650 lithium-ion battery into a lightweight, waterproof design — perfect for night fishing, hiking, camping, cycling, running, and more.\u003c\/p\u003e\n\n\u003ch3\u003e✦ Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuper Bright T6 LED Bulbs\u003c\/strong\u003e – Up to 7 LED bulbs illuminate a range of 100 meters, giving you a wide, clear field of view in total darkness.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5 Versatile Lighting Modes\u003c\/strong\u003e – Switch between: Main light only | Side light only | All lights at normal brightness | All lights at full brightness | SOS strobe — ready for any situation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e180° Adjustable Beam Angle\u003c\/strong\u003e – Tilt the lamp head to direct light exactly where you need it, indoors or outdoors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWaterproof Construction\u003c\/strong\u003e – Splash-proof and sealed battery compartment means rain, snow, or damp conditions won't slow you down.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUSB Fast Charge \u0026amp; Long Runtime\u003c\/strong\u003e – Included USB charging cable powers the high-capacity 18650 battery for \u003cstrong\u003e8–12 hours\u003c\/strong\u003e of continuous use on a full charge.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComfortable Adjustable Headband\u003c\/strong\u003e – High-quality elastic strap fits adults and children alike; non-slip design stays secure during active use.\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e20W Output | 3.7V Lithium-Ion | CE \u0026amp; RoHS Certified\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e✦ Ideal For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e🎣 Night fishing \u0026amp; early morning angling\u003c\/li\u003e\n  \u003cli\u003e🏕️ Camping, hiking \u0026amp; trail running\u003c\/li\u003e\n  \u003cli\u003e🚴 Cycling \u0026amp; mountain biking\u003c\/li\u003e\n  \u003cli\u003e🔧 Workshop tasks, DIY repairs \u0026amp; utility work\u003c\/li\u003e\n  \u003cli\u003e🚶 Evening walks \u0026amp; outdoor exploration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e✦ Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT21\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLED Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT6 LED Bulbs (7\/5 bulbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBeam Angle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e180°\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWattage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.7V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18650 Lithium-Ion (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRuntime\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8–12 hours (fully charged)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLighting Modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWaterproof\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB (cable included)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e✦ Related Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/0-50-psi-dial-tire-pressure-gauge-car-motorcycle-bike\"\u003e0–50 PSI Dial Tire Pressure Gauge – Car, Motorcycle \u0026amp; Bike\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-5m-nylon-braided-3-5mm-aux-audio-cable-car-phone-headphone\"\u003e1.5M Nylon Braided 3.5mm AUX Audio Cable | Car, Phone \u0026amp; Speaker\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-mode-garden-hose-nozzle-high-pressure-spray-gun\"\u003e10-Mode Garden Hose Nozzle – High-Pressure Spray Gun\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e✦ Safety \u0026amp; Standards\u003c\/h3\u003e\n\u003cp\u003eFor guidance on safe use of portable lighting and batteries during outdoor activities, visit the U.S. Consumer Product Safety Commission (CPSC) for consumer product safety resources.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: How long does the LED headlamp battery last on a single charge?\u003c\/h4\u003e\n\u003cp\u003eA: The ESMARTER T21 headlamp uses a high-capacity 18650 lithium-ion battery that supports 8–12 hours of use after a full charge, depending on which of the 5 lighting modes is selected. Lower brightness modes extend runtime significantly.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this LED headlamp truly waterproof for fishing and hiking?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The T21 headlamp features a waterproof design with a sealed battery compartment to protect against splashing water, rain, and snow — making it a reliable choice for fishing, hiking, camping, and other outdoor activities in variable weather.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How does the USB charging work, and is a cable included?\u003c\/h4\u003e\n\u003cp\u003eA: The headlamp charges via USB — simply connect the included USB cable to any standard USB power source (power bank, wall adapter, laptop, etc.). The 18650 lithium-ion battery supports fast charging for quick turnaround between uses.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can children wear this headlamp comfortably?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The adjustable elastic headband is designed to fit both adults and children comfortably. It's non-slip and easy to put on and take off, making it suitable for family camping trips and outdoor adventures.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How long does the LED headlamp battery last on a single charge?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The ESMARTER T21 headlamp uses a high-capacity 18650 lithium-ion battery that supports 8–12 hours of use after a full charge, depending on which of the 5 lighting modes is selected. Lower brightness modes extend runtime significantly.\"}}, {\"@type\": \"Question\", \"name\": \"Is this LED headlamp truly waterproof for fishing and hiking?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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