sodium vapour light fittings
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(High-Pressure Sodium Vapour). Based on the knowledge we learned about LED before, we basically know that LED lights are more efficiency, more energy saving, more durable than incandescent lights and compact fluorescent lights (CFL). However which one is better if compared with HPSV? Well, we may see the below indexes for answers.
low pressure sodium lamps
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range in size from 18W to 180W and average 14,000 to 18,000 hour lifetimes. They have excellent lumen maintenance but the longest warm up times from 7 to 15 minutes. LPS lamps feature the shortest re-strike time among HID sources only 3 to 12 seconds.
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High Pressure Tubular Sodium Vapor Lamps
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High Pressure Tubular Sodium Vapor Lamps, 6A Door Bell, Tv Socket