What is Lumen Maintenance?

Lamp starting method in which lamps are started by high voltage input with no preheating of lamp filaments. Some rapid start lamps are designed so that they may be instant started.  In fluorescents, these lamps will start immediatly and not 'flicker' when you turn them on.

0 0

A light source that generates light utilizing a thin filament wire (usually of tungsten) heated to white heat by an electric current passing through it.

0 0

ArcAn Arc of light is an intense luminous discharge formed by the passage of electric current in a gaseous medium across a space between electrodes.

0 0

The distance between the center of the filament, or arc tube, and a reference plane - usually the bottom of the lamp base. Refer to the following chart for reference plane locations. Base type L.C.L Reference Plane Location All screw bases (except Mini-Can) Bottom of base contact Mini-Can Where diameter of ceramic base insulator is .531 inches 3-Contact Medium Bottom of base contact Mogul Medium Prefocus Top of base fins Mogul Prefocus Top of base fins Medium BiP...

0 0 View More

Resistance of the cathode in a Fluorescent lamp is measured "cold" before the lamp is turned on (Rc) or "hot" after the lamp is turned on (Rh). The ratio of the hot resistance to the cold resistance is also measured (Rh/Rc).

0 0