Why This Heated Eye Mask Prints a 12V Rule Next to a USB-A Plug

Everyone in the heated-wearables trade has seen the same listing: a USB plug photographed at a flattering angle, and an unspoken suggestion that any port will do. The reference photos for SHEERFOND's checkered graphene heated eye mask take the opposite approach. They print the rule directly on the artwork — twice: "Compatible 12V Supply Required." That one line tells you more about how this factory communicates than any temperature claim could.

What the Reference Photos Actually Show

Fourteen images cover the mask from every angle a buyer needs:

• A hero shot on dark stone with the headline "Graphene Heated Eye Mask / Three Heat Settings / Custom Design · OEM · ODM"
• A close-up labeled "Eye-Area Warmth / Graphene Heating" with a Heat Zone Illustration note
• The inline controller, with its small LCD screen and two buttons
• A flat lay titled "Woven Fabric & Fit" showing the checkered weave and the adjustable buckle
• A USB-A plug photographed close enough to read the connector shell
• A two-panel comparison labeled "Powered" and "Unplugged"

Nothing in the photos is cropped to hide a detail. The strap, the buckle, the cable and the controller all appear in the same frame as the mask — which is exactly how a buyer should want it.

Twelve Volts Behind a USB-A Plug

This is the section most sellers would leave out, so we will make it the loudest one.

The plug is USB-A shaped. That is a statement about the connector, not about the power. A standard USB-A port on a laptop or a wall charger typically delivers 5 volts. This mask's artwork states — in capital letters, on two separate images — that a compatible 12V supply is required. Plug it into an ordinary 5V port and you should expect, at best, heat levels well below what the settings suggest.

We do not publish which 12V source ships with an order, because that is a configuration decision: which power source is included is confirmed per order. What we can promise is simpler and rarer: the mask tells you its requirement before you buy, instead of letting you discover it after.

Three Settings, Printed in Degrees

The controller artwork prints 40°C · 50°C · 60°C as the three heat settings. We transcribe them as printed. What the photos do not state is whether these figures describe the heating element or the surface you feel through the fabric — so we do not dress them up as a skin-temperature promise. The LCD screen and the two-button layout (a power/plus key and a SET/minus key) are visible in the controller close-ups and are part of the confirmed design.

The Honeycomb Is an Illustration

Three of the images show the eye area glowing orange in a hexagon pattern, and all three carry the same caption: "Heat Zone Illustration." It is artwork, not a thermal image. The glowing zone shows where the heating layer sits, not a measured temperature distribution — and any seller presenting a similar render as measured data should be asked for the instrument that took it.

Eyes Are the Wrong Place to Exaggerate

A heated eye mask sits against some of the most sensitive skin a person has, which is precisely why this page refuses the usual vocabulary. This is a personal comfort product. It is not a medical device, it is not a therapy device, and it makes no therapeutic claim; it is not intended to diagnose, treat or prevent any disease.

The comfort rules are practical, not medical: wear it seated and awake, start on a setting you can leave immediately, never wear it while sleeping, and take it off before you doze off. The elastic strap adjusts with a buckle so the fit stays where you set it — loose enough to breathe, secure enough not to slide.

Numbers We Refuse to Borrow

The photos are honest about what they show, and we are honest about what they do not. Deliberately left out until confirmed:

• Wattage and current draw (no W or A figure is printed anywhere)
• Cable length
• Mask dimensions and weight
• Fabric composition beyond the visible woven checkered pattern
• Certification status
• Cleaning method (a wired heating product should never be judged by a stock phrase)
• Packaging contents

None of these will be borrowed from another product in the same family. A number copied from a different SKU becomes a claim on someone else's listing.

Parameter Sources

If you are building a heated eye mask line — private label, custom fabric, your logo on the controller artwork — send us the configuration and we will confirm the details the photos leave open.

Contact SHEERFOND for samples and OEM terms →