We believe charging should be effortless
Clamp N Charge is a universal USB charging accessory that clamps onto any standard cord to provide USB-A and USB-C charging ports for phones, tablets, laptops, earbuds, and smartwatches.
Unlike lamp-socket adapters that require a compatible socket, it works on most standard cords regardless of location, and it installs in seconds with no tools or modifications, and needs no wall outlet. It has been recommended by Amazon as the more 'universal alternative' to lamp-socket USB adapters.
Clamp N Charge: USB Charging Station with Dual USB-A and USB-C Ports
Clamp N Charge is a cord-mounted USB charger that clamps onto any flat (18/2 SPT-1 or SPT-2) lamp or extension cord to add two USB-A ports (5V/2.1A total) without using a wall outlet! It installs in under a minute with a Phillips screwdriver and no rewiring required.
Whether the outlet is behind your bed, or the nightstand is in the way; you're charging your phone inconveniently, or not at all. Clamp N Charge fixes that by turning the lamp cord you already have into a charging station, right where you need it. No outlet. No damage to walls. No landlord conversation.
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The outlet is always in the wrong place. Clamp N Charge puts USB ports on the cord you already have, no outlet needed.
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Two USB-A ports (5V/2.1A total) plus a free USB-C adapter to charge modern devices.
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Installs in under a minute with a Phillips screwdriver. No rewiring, no electrician.
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Works with flat 18/2 SPT-1 and SPT-2 lamp and extension cords. Not compatible with round cords.
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Patented design (U.S. Patent No. 11,495,980 B1), independently tested to IEC 62368-1 by KTi, FCC Part 15 compliant (it is very safe)
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Moves with you. No holes, no adhesive, no permanent changes. Renter-friendly by design.
Will it fit my cord?
Clamp N Charge works with flat 18/2 SPT-1 and SPT-2 lamp and extension cords only. Round cords are not compatible. Max 2 units per cord.
Do I need a wall outlet?
No. Clamp N Charge draws power from the cord itself. The wall outlet your lamp already uses stays free.
Works with flat 18/2 SPT-1/2 lamp and extension cords only. Max 2 units per cord. Not for laptops. U.S. Patent No. 11,495,980 B1. Independently tested to IEC 62368-1 by KTi. FCC Part 15 compliant.
In stock! Ships within 1-2 business days.
Safe & Reliable
Complimentary shipping & returns
USB-C adapter included
Our journey starts here.
2021
The Inspiration
Outlets are never where you need them. They hide behind beds, sit blocked by sofas, and run out of room the moment two devices need charging. Florida inventor Garrett Puzzo saw the fix already sitting in plain sight: the lamp cord crossing the nightstand. Shortly after, he created and e-filed the patent application for a cord-mounted USB charger that adds charging ports directly on the cord. No new outlet. No rewiring.
2022
The Patent
On November 8, 2022, the U.S. Patent and Trademark Office granted Patent No. 11,495,980 B1 for the cord-mounted USB charging design. Clamp N Charge became a category of one: the only patented device that clips two USB ports onto a flat lamp or extension cord, turning the cord you already own into a charging station.
2023
The Engineering
A patent is a promise. 2023 was about keeping it. Prototype after prototype refined the clamp until it seated perfectly on flat 18/2 ribbon cords, tightened with a single Phillips screw, and confirmed power with a green LED. One rule guided every revision: if installing USB on a lamp cord takes more than a minute, it is not done.
2024
The Product
With the design locked, 2024 turned Clamp N Charge into a finished product: dual USB-A ports, regulated 5V 2.1A output, and a free USB-C adapter in every box. Retail packaging, instruction inserts, and production tooling came together around one promise printed on every box: Power. Simplified. Anywhere.
2025
The Proof
Before reaching a single customer's cord, Clamp N Charge went to the lab. In December 2025, Guangdong KAIXU Testing Technology (KTi) independently tested the device to the 62368-1 safety standard used by major consumer electronics brands. It passed. Safety tested, FCC compliant, and patent protected, Clamp N Charge was ready to launch.
Every Unit Sold Here Gives Back
For every Clamp N Charge sold on this site, we donate to the Tunnel to Towers Foundation, a nonprofit that builds mortgage-free homes for catastrophically injured veterans, first responders, and the families they leave behind. It's a simple promise: you get power where you need it, and a family who sacrificed everything gets a home. No minimums, no fine print.
Us vs. The Old Way
The old way: crawling behind the nightstand, hunting for an outlet that's always just out of reach.
The Clamp N Charge way: your lamp is already at your bedside so we put the charger exactly where your hand lands.
CLAMP
AND CHARGE
Play anything
Clamp N Charge • USB-A + USB-C • No outlet needed • Installs in seconds • Safety Tested • Recommended by Vine
FAQs
Please visit our Contact page to find out more.
Will Clamp N Charge fit my lamp cord?
Yes, if your cord is flat. It fits flat ribbon-style 18/2 SPT-1/2 lamp and extension cords, the most common type in US homes. Round appliance cords will not work.
Is Clamp N Charge safe?
Yes, Clamp N Charge was independently tested by KTi to IEC 62368-1, the same safety standard used across consumer electronics, and it is FCC compliant.
How do I install it and what tools do I need?
Just a Phillips screwdriver and about a minute. Unplug the cord, seat it in the groove, tighten the included screw, and plug back in. A green light confirms it is working.
How many devices can I charge at once?
Two. The dual USB-A ports share a regulated 5V 2.1A output, and a free USB-C adapter is included for newer phones. It is built for phones, tablets, and earbuds, not laptops.
Can I use it in a dorm or rental?
Absolutely. It never touches your walls or outlets, so there is nothing a landlord could object to. Install it on your lamp cord and take it with you when you move.
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