How BRASSLISM's Patented Magnetic Rechargeable Light Bulb Works

A magnetic rechargeable light bulb brings the light source, battery and controls together in a removable unit. In the BRASSLISM cordless marble table lamp, this unit attaches magnetically to its matching support. When it needs charging, you can take out the light module and leave the marble base where it is.

That small difference matters on a dining table or a carefully arranged console. You do not need to move the whole lamp to an outlet or leave a charging cable running across the display. This guide explains how the connection works, how to charge the module, and where U.S. Patent No. 12,729,842 fits into the design.

How does a magnetic rechargeable light bulb work?

The battery powers the LEDs, the magnet holds the module in place, and the USB-C port provides the charging connection. These are separate functions. The magnetic attachment in this lamp does not charge the battery wirelessly.

Once charged and disconnected from its cable, the module returns to the compatible lamp support. The lamp can then provide ambient light without a power cord running to a wall outlet during use.

How is it different from a conventional light bulb?

A conventional mains-powered screw-in bulb receives electricity through its socket. The BRASSLISM magnetic module carries its own rechargeable battery and connects to a purpose-designed lamp support instead of an E26 or E27 socket.

Here, the word "bulb" describes a complete removable LED light module. It is not a universal replacement for the screw-in bulbs in other lamps. Check compatibility before buying a replacement module, even if another product looks similar.

How the magnetic attachment works

The patented design places a magnetic element inside the base of the removable light module. It connects to a surface that the magnet can attract. In this description, the module's base means the bottom of the light unit, not the table lamp's decorative marble base.

For everyday use, the benefit is straightforward: the light unit can be removed from its matching support without unscrewing a threaded bulb. Handle the module itself carefully and follow the lamp's instructions when removing or returning it.

Magnetic attachment does not make every metal surface a suitable lamp support. Use the module with its compatible lamp, on a level surface away from table edges. The connection is not a guarantee against knocks or falls.

What is inside the light module?

A rechargeable battery

The battery supplies power while the lamp is disconnected from a charger. The BRASSLISM marble lamp uses a 2600mAh rechargeable battery. Higher brightness uses more energy, so the same charge lasts longer at a lower light setting.

Battery capacity alone does not tell you how many evenings a lamp will run. Compare the stated runtime at the brightness you expect to use. A low setting for a bedside accent and a higher setting for a dinner table have different charging needs.

LED components and a light-transmitting outer tube

The patent describes an inner tube, a light-transmitting outer tube and LED components arranged around the inner structure. It also describes a flexible circuit board carrying the LEDs. These details explain how the light-producing components fit within the removable unit.

In the assembled marble lamp, the light module sits within a linen shade. When choosing where to place the lamp, consider the light from the complete lamp and shade together. Its intended role is to add a pool of ambient light to a table or corner.

Touch controls

The design includes a touch-sensitive switch on the top cover. The BRASSLISM marble lamp offers three color temperatures and three brightness levels. Follow the product instructions for the touch sequence used to select each setting.

For an evening dining arrangement, 2700K is the warmest of the available settings. The other options are 4500K and 6000K. Choose the setting that works with the room's existing lighting; there is no need to use maximum brightness for every occasion.

A USB-C charging port

The module charges through USB-C. Switch the light off before connecting it, and keep it off throughout charging. Disconnect the charging cable before turning the light back on. Use charging equipment that matches the product instructions.

The U.S. patent behind the design

THE LAMPS FACTORY (HK) LIMITED, the Hong Kong parent company behind the BRASSLISM brand, was granted U.S. Patent No. 12,729,842 B1 on September 8, 2026. The patent is titled Rechargeable LED Lamp with Magnetic Base. BRASSLISM's U.S. brand operations are managed by Unigarden.

This is a U.S. utility patent. Its claims describe particular combinations of components and their relationships, including the magnetic attachment, inner and outer tubes, and a top cover with a touch-sensitive switch. The first claim also specifies that the top cover can rotate relative to the outer tube.

The patent includes 20 claims and names Min Du as the inventor. The application, numbered 19/173,177, was filed on April 8, 2025. The linked USPTO Official Gazette record provides a public reference for the patent number, owner and first claim.

These details relate to the light module's design. They do not mean that all magnetic lamps use this invention, or that a patent certifies water resistance, electrical safety or battery runtime. Those are separate product characteristics. The description here is a plain-language introduction; the patent's claims define its scope.

Why a removable module suits a marble table lamp

A marble base is something you may prefer to arrange once and leave in place. On a narrow console, moving the entire lamp can mean moving a vase, tray or framed photograph as well. A removable light module makes charging easier to fit around that arrangement.

On a dining table, the cordless format leaves the surface free of a power cable during use. At the end of the evening, switch the lamp off and take the module to a dry charging spot. Once charged, disconnect it and return it to the lamp before the next use.

For a bedside table or living-room side table, the same design offers a small accent light without requiring an outlet directly behind the furniture. It works alongside the room's other lighting. Keep a suitable reading or task light available wherever you need focused illumination.

For more placement ideas, see our cordless table lamp buying guide.

The BRASSLISM cordless marble table lamp

The BRASSLISM Cordless Marble Table Lamp with Magnetic LED pairs the detachable module with a solid natural marble base, brass-plated hardware and a linen shade. It stands 17.5 inches tall and is intended primarily for indoor ambient lighting.

• Battery: 2600mAh rechargeable battery.
• Light settings: 2700K, 4500K and 6000K, with three brightness levels.
• Charging: approximately three hours through USB-C, with the lamp switched off.
• Listed runtime: up to six hours on high, 12-15 hours on medium and 24+ hours on low.

These runtime figures are product specifications, not results from a test conducted for this article. Actual runtime varies with settings and use. For a longer gathering, charge the module beforehand and choose a brightness level suited to the atmosphere you want.

Our rechargeable table lamp buying guide explains how to compare battery life, light settings, materials and placement across different lamps.

Charging and everyday care

Use a dry indoor charging location where the module will not be knocked over or splashed. The lamp must remain switched off while charging.

• Disconnect the USB-C cable before switching the light on.
• Keep the module and charging port away from water. Do not rinse or immerse them.
• Place the assembled lamp on a stable, level surface, away from edges.
• Use the compatible lamp support and follow the supplied charging instructions.
• If the module is damaged or behaves unusually, stop using it and contact BRASSLISM for guidance.

Frequently asked questions

Does the magnetic base charge the bulb?

No. In this BRASSLISM lamp, the magnet provides the physical attachment. The rechargeable battery powers the light, and USB-C provides the charging connection. Placing the module back on the lamp does not recharge it.

Can I use this module in a regular screw-in lamp?

No. It does not replace an E26 or E27 screw-in bulb. Use it with its compatible lamp. Contact BRASSLISM before purchasing a replacement module to check that it matches your model.

Can I use the lamp while it is charging?

No. Switch it off before connecting the charging cable and leave it off while charging. Disconnect the cable before using the lamp again.

Is the magnetic lamp waterproof?

No. Keep the light module and USB-C port dry, and use this marble lamp primarily indoors. A cordless design does not by itself make a lamp suitable for wet locations or outdoor use.

Is it suitable as a desk or reading lamp?

Its main purpose is ambient lighting for dining tables, consoles, bedside tables and similar indoor spaces. For sustained reading, office work or detailed tasks, use lighting designed for that purpose.

A lamp you can leave in place

The practical appeal of this design is easy to see: the marble lamp stays on the table while the removable module goes to the charger. The magnet handles attachment, the battery supplies power, and the touch control lets you select the available light settings.

Explore the cordless marble table lamp for current specifications and product photographs.