Light emitting diode controls; light emitting diode drive controls for LED lighting; emitting diode control switches for LED lighting; light emitting diode lightness regulators; light emitting diodes; light emitting diode safety indicator lights; light emitting diode displays; electric rectifiers; voltage stabilizers; voltage regulators; electronic thermal effect controllers; multi-loop controllers; light on/off switch controllers; ac/dc voltage power converters; ac/dc digital level power con...