Abstract: An integrated advertisement board includes a frame, several light emitting elements arranged on the frame in a form of a matrix, and a controlling circuit electrically connected to the light emitting element; the controlling circuit is used for making each light emitting element emit light and stop emitting light in an alternate way for the light emitting element to present patterns as well as for the patterns to have constantly changing appearance.
Abstract: LED lamps include a hollow light-transparent ball and one or more LED of the same or different colors fixed behind the ball, which has an inner semi-transparent layer and an outer transparent layer. The semi-transparent layer has a larger deflecting percentage than the outer transparent layer so that light emitted by the LED may deflect and collide with each other many times in the semi-transparent layer of the ball to produce soft and evenly mixed colored light when seen through the ball.
Abstract: A remotely controllable wall switch includes a housing, a push button and a receiver contained in the housing, and a transmitter. The receiver has a circuit board connected to two lead wires of a power source and a load and the push button. A lead wire of the power source and the load are connected to each other. In use, the push button of the receiver or a press key of the transmitter is pressed to control the receiver, to connect power to the load or disconnect it.