Tap changers are devices that can increase or decrease the output secondary voltage by changing the turn ratio of primary or secondary winding. A tap changer is usually installed on a high voltage ...

Each of the three basic types of light sources — incandescent, fluorescent, and HID — has its own particular applications and advantages. The proper selection of a lamp type will ultimately depend on ...

Landscape lighting describes a large and varied family of outdoor lighting fixtures. These versatile, weatherproof lights can be used to illuminate pathways, flower beds, trees, fences, driveways, ...