Gradually lighting/dimming wireless transmission indicator lamp

Hermetically sealed type electronic flash device

Illumination warm-up control in a document scanner

Independent emergency lighting system with self-diagnosis

Indicator circuit for electronic flash apparatus

Indicator lamp system

Instrument panel illumination dimming control

Intelligent electrical switching device including a touch...

Intelligent light degradation sensing LED traffic signal

Intelligent light degradation sensing LED traffic signal

Intelligent user interface with touch sensor technology

Internally illuminated switch plate

Ionization vacuum gauge circuit

Lamp ballast circuit with overload detection and ballast operabi

Lamp circuit with disconnected lamp detecting device

Lamp circuit with disconnected lamp detecting device

Lamp circuit with disconnected lamp detecting device

Lamp circuit with disconnected lamp detecting device

Lamp failure detecting device

Lamp failure detecting device for automobile