Fluorescent light | Wikipedia audio article

This is an audio version of the Wikipedia Article: 00:01:21 1 History 00:01:30 1.1 Physical discoveries 00:04:32 1.2 Early discharge lamps 00:09:18 1.3 Neon lamps 00:11:47 1.4 Commercialization of fluorescent lamps 00:17:38 2 Principles of operation 00:20:32 2.1 Construction 00:23:13 2.2 Electrical aspects of operation 00:26:16 2.3 Effect of temperature 00:27:54 2.4 Losses 00:29:35 2.5 Cold-cathode fluorescent lamps 00:31:36 2.6 Starting 00:32:07 2.6.1 Preheating 00:37:35 2.6.2 Instant start 00:38:28 2.6.3 Rapid start 00:39:32 2.6.4 Quick-start 00:40:43 2.6.5 Semi-resonant start 00:42:59 2.6.6 Programmed start 00:43:35 2.6.7 Electronic ballasts 00:48:02 2.7 End of life 00:48:33 2.7.1 Emission mix 00:50:04 2.7.2 Ballast electronics 00:52:01 2.7.3 Phosphor 00:52:43 2.7.4 Loss of mercury 00:53:57 2.7.5 Burned-out filaments 00:54:56 3 Phosphors and the spectrum of emitted light 00:56:07 3.1 Color temperature 00:57:40 3.2 Color rendering index 00:59:01 3.3 Phosphor composition 01:00:10 4 Applications 01:01:51 5 Advantages 01:02:00 5.1 Luminous efficacy 01:04:01 5.2 Life 01:04:43 5.3 Lower luminance 01:05:14 5.4 Lower heat 01:05:40 6 Disadvantages 01:05:50 6.1 Frequent switching 01:06:46 6.2 Health and safety issues 01:08:05 6.3 Ultraviolet emission 01:08:58 6.4 Ballast 01:09:54 6.5 Power quality and radio interference 01:11:15 6.6 Operating temperature 01:11:56 6.7 Lamp shape 01:12:48 6.8 Flicker problems 01:16:08 6.9 Dimming 01:16:58 6.10 Disposal and recycling 01:17:39 7 Lamp...