Desk top items with LEDs also include USB-unit(s) or USB-module(s) and, optionally, additional outlet-units, to supply power to other electric or digital devices such as a smart phone or digital data device.

The light bulb device with functional features may include one or more features such as a dimmer function for the light source, an on/off function for the light source, a charger function for external devices using an USB port, an electrical outlet, a night light, etc. The light bulb thus converts the AC voltage in the conventional light socket to one or more usable voltages for electronic features therein or other electronic devices. One such feature is a dimmer function, another feature is one or more USB ports for charging or operating other devices such as video camera. Also, a Bluetooth connection may allow the device to act as a speaker or projector or a clock. A video monitoring feature may be included within the device that can be monitored via Bluetooth connection to a smart phone.

The present invention is a reference image holder device for assisting a user during the making of a painting or other artwork by allowing the user to have their hands free of needing to hold a reference image or other objects. As a non-limiting example, the reference image holder may include some or all of the following components: a base, a pole, a gooseneck section, at least one height adjuster collet, a handle, magnet strips, an interchangeable reference bar, music control(s), an LED and power button, and USB port or connector.

Provided is a self-made LED luminous floating oil pen, including an empty pen tube. One end of the empty pen tube is threadedly connected to a plastic shell, and the inner cavity of the empty pen tube is filled with a mineral oil. Two sides of the inner cavity of the empty pen tube are provided with LED lamp beads distributed at equal intervals, and floating action figures are arranged in the inner cavity of the empty pen tube. Glitter and hollow plastic balls are filled in the inner cavity of the empty pen tube.

A multidimension-controllable levitation switch comprising a switch levitating body having a magnet; a magnetic levitation support mechanism for supporting the switch body in a stably levitated state relative thereto; magnetic detector means for detecting magnetic field variation of the switch body relative thereto and outputting a correspondingly varied magnetic signal; and a switch control circuit receiving the varied magnetic signal output by the magnetic detector means, and generating a corresponding switch signal based on the varied magnetic signal received. The multidimension-controllable levitation switch or switch system of the present invention may be applied to various electrical appliances, wherein the switch-shift operation of the electric device can be achieved simply by applying a push or press action on the levitating body, and thus incorporates operational convenience as well as novelty.

A luminous mouse pad includes a mat part and a light-guiding structure. The light-guiding structure includes a tube portion; and an insertion portion. The insertion portion protrudes from the tube portion and is inserted into an end side surface of the mat part to leave the tube portion to be exposed outside the mat part.

A lamp clamp used to fix a light source on an object is disclosed. The lamp clamp includes a first clamping member and a second clamping member. The first clamping member includes a lamp fixing portion, a connecting portion and a stopping portion. The lamp fixing portion is used to fix the light source. The connecting portion is connected to the lamp fixing portion. The stopping portion is movably connected to the connecting portion and has a stopping surface selectively disposed at one of plural positions on the connecting portion. The second clamping member is connected to the connecting portion to clamp the object between the stopping surface and the second clamping member.

A multidimension-controllable levitation switch comprising a switch levitating body having a magnet; a magnetic levitation support mechanism for supporting the switch body in a stably levitated state relative thereto; magnetic detector means for detecting magnetic field variation of the switch body relative thereto and outputting a correspondingly varied magnetic signal; and a switch control circuit receiving the varied magnetic signal output by the magnetic detector means, and generating a corresponding switch signal based on the varied magnetic signal received. The multidimension-controllable levitation switch or switch system of the present invention may be applied to various electrical appliances, wherein the switch-shift operation of the electric device can be achieved simply by applying a push or press action on the levitating body, and thus incorporates operational convenience as well as novelty.

In one example in accordance with the present disclosure, a lighting assembly for a handheld printing system is described. The lighting assembly includes a light source to emit a beam of light onto a surface to generate a light box which indicates a print area on the surface to receive printed content as the handheld printing system is moved. The lighting assembly also includes a reflective surface to reflect the beam of light towards a molded opening and the molded opening through which the beam of light passes. The lighting assembly also includes a clear cover over the molded opening.

A table lamp with double light-emitting lamp poles and a wireless charging board includes a base, a lamp arm erected from the top of the base, and two light-emitting lamp poles pivotally connected to the top of the lamp arm, and the two light-emitting lamp poles can be placed side by side with each other or spread out into a fan shape to adjust the lighting area, and a wireless charging board is arranged at the front of the base and provided for an external mobile device to be set obliquely for charging, and a display screen of the mobile device is facing towards the front to facilitate the viewing by users.