From above table, due to the high luminous efficacy XED energy-saving lamps, 150w XED special energy-saving lamp can replace 400w highHigh-pressure sodium lamp to gain the same road lighting effect.
This article introduces the gas discharge lamps, such as fluorescence lamp, highpressure sodium lamp and metal halide lamp, and their basic requirements to the electronic ballast.
介绍了荧光灯、高压钠灯以及金属卤化物灯等气体放电灯和其对电子镇流器的基本要求。
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The process of annealing is studied according to the need of exceed highpressure gas discharge lamp.