Hybrid LED / photoluminescent signs

A sign comprising:

• one or more photoluminescent elements;
• and
• an electrical circuit comprising
• an AC circuit;
• a rectifier;
• and
• a DC circuit portion;
• wherein the DC circuit portion comprises one or more light emitting diodes (LEDs), the one or more light emitting diodes (LEDs) arranged to excite the one or more photoluminescent elements;
• wherein the AC circuit is connected to an AC power source and supplies power to the rectifier and the rectifier supplies a rectified power supply to the DC circuit portion;
• wherein the AC circuit receives AC power from an AC source, the AC circuit configured to reduce a transient current supplied to the rectifier to less than 1/100th of an original transient size entering the AC circuit arranged for connection to an AC power supply and supplying power to the LEDs;
• wherein the AC circuit comprises multiple transient suppression circuits comprising
• a first transient suppression circuit used during normal operation, where power runs in series through at least two capacitors and at least two resistors to the rectifier, the first transient suppression circuit configured to act to reduce a voltage and current of the AC source to a level suitable for powering the LEDs;
• a further transient suppression circuit comprising at least one resistance loop in combination with one capacitor of the at least two capacitors of the first transient suppression circuit, the at least one resistance loop configured to limit said transient current;
• a shunt transient suppression device connected in parallel located after the at least two resistors of the first transient suppression circuit;
• an RC circuit, the RC circuit comprising at least one further capacitor and at least one further resistor, the RC circuit being parallel loop connected and located downstream of the shunt transient suppression device, the RC circuit configured to further filter any remaining transient;
• and
• wherein the DC circuit portion comprises only said LEDs, with unsmoothed or substantially unsmoothed rectified power being supplied from the rectifier to the DC circuit portion, the DC circuit portion being free of transient suppression components and electrolytic capacitors.