A
wireless light board is disclosed herein. The present invention comprises a baseplate, a backlight module, a
power module, a
proximity sensor module, a control module, at least one bottom cover, and a top cover. The baseplate has a recess and a power source
accommodation hole to respectively accommodate the backlight module and the
power module. The control module is arranged on a circuit board and electrically connected with the backlight module and the
proximity sensor module to turn on / off the backlight module. The bottom cover removably covers the power source
accommodation hole. The top cover covers at least the backlight module and the
power module and has a
first light-permeable region above the backlight module. Thereby, the
wireless light board is slim, waterproof, power-saving, easy to install, and convenient for battery replacement.