| 摘要 |
An apparatus operable in a wet environment for controlling the brightness and color of a solid state light emitting diode, lamp assembly which is adapted to be coupled to an AC source for supplying an AC signal. A plurality of switching devices are connected in series with the lamp assembly and light emitting diodes. The switching devices are operative in either a first state, wherein significant current flowing through the lamp assembly is prevented or a second state wherein current flow through the lamp assembly is substantially undisturbed. User controls provide lamp assembly brightness and color input signals to a controller. Also included is a controller means for receiving lamp assembly brightness and color input signals from the user controls, and for switching the switching devices between the first and second states in a predetermined sequence for inducing pulse width modulation signals to the lamp assembly. The isolation means for electrically isolating the user controls from the AC source, includes an electrical current barrier.
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