HID Light Bulb Components

HID LIGHT BULB COMPONENTS 

• Base is one of the main components of a HID lamp.  It serves as the electrical contact.
• The stem serves as the passageway to the mount. 
• Arc Tube is a capsule that gets filled with gas which the electric arc passes through.
• The electrical leads bring the current toward the arc tube.
• Tungsten Electrodes is the lamp base that serves as the electrical contact.
• Outer Bulb made of heat resistant glass, maintains a constant temperature within the lamp and serves as extra protection for the arc tube while absorbing UV radiation emitted from the arc. 
• Main difference in HID lamp components is the composition Mercury Vapor Arc Tube. 
• Metal Halide lamps are the most efficient light in the HID family. 
• High pressure sodium lamps use mercury and sodium vapors which create a yellow tone light.