The LED desk light has more than one function which has area illumination by LED light source and incorporate with at least one but not limited other functions select from charge other electric device(s) from built-in USB port(s) or USB-unit(s) or USB-module(s), a display of light beams from the LED, projection of an image, projection of a time image, clock functions, illumination of an area, playing of music, serving as a source of alternating current (AC) power or electric signals, display of photos, wire or wireless transmission of digital signals, providing air flow at a desired temperature, generating moisture, steam, or smells, dispensing liquid, brewing coffee/tea, preparing food, and displaying charging status, night light with desired LED light variety light performance, functions, effects including but not limited for changing color, brightness, dimmer, moving effects, chasing which available from market place by IC or circuit design and powered by Outside Transformer DC power source or Inside Transformer with input AC power source though desire DC-to-DC or AC-to-DC circuits.