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Ballasts
Ballasts are needed to operate Discharge Lamp such as Fluorescent Lamps, Compact Fluorescent Lamps, High-pressure Mercury Lamps, Metal Halide Lamps, and H...
Fri, 17 Jun, 2016 at 1:58 PM
Ballasts - Electronic Ballasts
Electronic ballasts are used to run fluorescent lamps at high frequencies (approx. 35 - 40 kHz). This has a number of advantages compared with conventional...
Fri, 17 Jun, 2016 at 2:02 PM
Ballasts for flourescent/compact-flourescent lamps
A ballast is required to start and operate a fluorescent lamp. In combination with the starter the ballast delivers the striking voltage needed to start t...
Fri, 17 Jun, 2016 at 2:33 PM
Ballasts - High pressure discharge lamps
Ballasts are needed to run high pressure discharge Lamps with their various gas fillings (mercury vapour, sodium vapour or metal halide). They stabilis...
Mon, 20 Jun, 2016 at 9:44 AM
Ballasts - Magnetic Ballasts
Magnetic ballasts are chokes which limit the current passing through a lamp connected in series on the principle of selfinduction. The resultant current...
Mon, 20 Jun, 2016 at 9:47 AM
Bibliography
The various subjects relating to modern lighting technology are dealt with in depth in the Handbuch für Beleuchtung This is the standard reference ...
Wed, 29 Jun, 2016 at 9:14 AM
Boundary Zone
If a room is not utilised right up to the walls, calculations for the lighting system can be limited to a working plane reduced by a peripheral margin ...
Mon, 25 Jul, 2016 at 2:30 PM
Brightness
Although the effect of brightness emanating from an object depends primarily on its Luminance, luminance cannot be treated as an absolute measure for the ...
Mon, 20 Jun, 2016 at 9:58 AM