Digitally controlled energy saving light bulb has a built in control circuit that responds to remote control signals

摘要

The energy saving light bulb has the lighting element [3] within a glass bulb [2] with a threaded base [5]. Built in to the bulb is a control circuit [6] that responds to remotely transmitted signals to vary the level of light dimming. Signals can either be transmitted via the power cables of from an infra red unit.