Spark plug for an internal combustion engine, having a pilot bre

Spark plug for externally ignited internal combustion engine

Spark plug with capacitor spark discharge

Spring clip for lamp with shroud

Stand lamp assembly including main and auxiliary lamp units

Starter for igniting an electric discharge tube

Starting arrangement for high-intensity-discharge sodium lamp

Systems and methods for a transformer configuration for...

Systems and methods for a transformer configuration with a...

Theft resistant compact fluorescent lighting system

Thermal insulating and impact resistant indicator light apparatu

Thermal-switch instant starter for a fluorescent light

Thick-film integrated flat fluorescent lamp

Thyratron switch for narrow pulses

Transformer, lamp base having a transformer and...

Tuned LRC ballasting circuit for compact fluorescent lighting

Ultra-compact arc discharge lamp system with an additional...

Ultraviolet radiation starting source and lamp containing same

Under-the-cabinet lighting system

Unit of electric lamp and reflector