Lamp dimmer circuit

Level switch

Light control circuit for camcorder

Light sensitive switching circuit

Light-sensitive switch structure and method with inverse off/on

Light-sensitive switch structure and method with inverse off/on

Lighting control system

Line voltage variation compensation apparatus

Liquid activated control switch

Liquid flow activated switch

Liquid level control apparatus

Liquid level sensor and electrode assembly therefor

Liquid level sensor, pump system means and circuit means

Liquid level shutoff control

Liquid rheostat system

Liquid sensor for disabling an electrical device

Load cell with base plate

Load condition controlled power module

Load condition controlled power strip

Load condition controlled wall plate outlet system