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Dialight LED LightingTechnology Comparison: High Pressure Sodium
Technology Comparison                          Dialight             Typical makeup of bulb material           LED         ...
Power Consumption / Dimmability                                                   Dialight  Energy savings and CO2 emissio...
Lumen Per Watt Efficiency                 Dialight         Light Source       Lumens/watt     High Pressure Sodium     80-...
Lifetime / Lumen Maintenance                          Dialight         Light Source          Lifetime in Hours (x1000)    ...
Color Quality                       Dialight                             LED     High Pressure Sodium         Light Source...
Comparing Color Quality – LED vs. HPS   Dialight
Temperature Ratings                                                             Dialight  Temperature Ratings  Heat produc...
Mercury Content                                                                    Dialight       GE 400W                 ...
Instant On/Off                                                   Dialight                       400W HPS Lamp Startup Colo...
Operating Temperatures                          Dialight            Light Source     Operating Temperature (°C)           ...
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LED lighting vs HPS - all you need to know

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LED lighting vs HPS - all you need to know

  1. 1. Dialight LED LightingTechnology Comparison: High Pressure Sodium
  2. 2. Technology Comparison Dialight Typical makeup of bulb material LED High Pressure Sodium
  3. 3. Power Consumption / Dimmability Dialight Energy savings and CO2 emissions reduction Replace 400W conventional light source with 150W LED High Bay for immediate energy savings of 60%, even more when you use dimming and proximity sensors. On average 100 Dialight DuroSite LED High Bays can reduce CO2 emissions by 125 tons per annum (12/7 operation). Dimming Dimming options for LEDs include STEP dimming for specified light level percentages or variable dimming for custom light output levels determined by the installer/customer. A special ballast is required to dim mercury vapor lamps. Light Source Watts Dimmability Dimming LimitHigh Pressure Sodium 100 – 500 Requires special 50% ballast LED 43 – 170 Yes 10%
  4. 4. Lumen Per Watt Efficiency Dialight Light Source Lumens/watt High Pressure Sodium 80-140 LED 114-160
  5. 5. Lifetime / Lumen Maintenance Dialight Light Source Lifetime in Hours (x1000) High Pressure Sodium 10-24 LED 100+
  6. 6. Color Quality Dialight LED High Pressure Sodium Light Source CRI Mercury Vapor 20-30 LED 70-90
  7. 7. Comparing Color Quality – LED vs. HPS Dialight
  8. 8. Temperature Ratings Dialight Temperature Ratings Heat producing equipment is marked with a Temperature Code, to indicate the maximum surface temperature. HPS LED Ratings given at 40° C ambient temperature Light Source T Rating Mercury Vapor T2A – T3A LED T4A – T6
  9. 9. Mercury Content Dialight GE 400W Philips 1000W LED Mercury Content: 30 mg Mercury Content: 44 mg Mercury Content: 0 mg Disposal The Resource Conservation and Recovery Act (RCRA) and the Universal Waste Rule (UWR) regulate the disposal of lamps containing mercury. LEDs themselves contain no mercury or harmful materials, which require special handling or unique recycling. Light Source Mercury Content HPS ~ 6 mg/100W LED 0
  10. 10. Instant On/Off Dialight 400W HPS Lamp Startup Color Shift Warm up Time Restrike Time Light Source (minutes) (minutes) High Pressure Sodium 2 – 15 4–5 LED Instant Instant0
  11. 11. Operating Temperatures Dialight Light Source Operating Temperature (°C) HPS -30° to 65° LED -55° to 70°1

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