LED chips coming from serial production to have some minor differences, such as light color, light output, and working voltage....
Devices that provide the proper voltage and current needed to operate gas discharge lamps such as fluorescent and HID are...
Maintenance factor occurred by the aging or pollution of the lamp. It is the multiplier that expresses the decrease in...
Chandelier is a decorative lighting element which contains more than one lamp. It is designed to mount on ceiling or...
Lighting unit, which contains one or more electrical light sources and all necessary parts for operation, is called fixture. Lamp,...