/, All (carried), Contextual, Lighting, Lighting (measure), Long term, Physical environmental, Physiological, Psychological, Social/2.4.7 Replacement of standard fluorescent tubes by triphosphorous fluorescent tubes

2.4.7 Replacement of standard fluorescent tubes by triphosphorous fluorescent tubes

2.4.7 Replacement of standard fluorescent tubes by triphosphorous fluorescent tubes

Description

Lamps that contain the next generation of phosphors offer improvements in efficiency as well as very good colour rendering.

Benefits

  • Provide between a 12 and 15% more light
  • Longer lifespan (around 12,000-19,000 hours)
  • Better light quality
  • Less mercury content (2 mg against 8 mg)
  • High efficiency, around 75-93 lm/W whereas the standard tubes has 67-79 lm/W

Limitations

  • Higher cost than standard tubes

Economic assessment

Initial investment: high cost. This is due largely to the scarcity and cost of the rare earth activator materials employed in the triphosphorous components, such as Europium, Cerium and Terbium.
Payback: the triphosphorous lamps cost roughly twice as much to purchase but this initial expenditure is rapidly recouped through lower electricity consumption costs for a fixed lighting level.

References and best practices

Image gallery

CHARACTERIZATION

Environment or playable world:

  • Residential

  • Academic

  • Offices

  • All

Carried out by:

  • Public building users

  • Owners

  • Operators

  • All

Reduce consumption of:

  • Heating

  • Cooling

  • DHW

  • Lighting

  • Electric devices


Type of driver:

  • Physical environmental

  • Contextual

  • Psychological

  • Physiological

  • Social

Time framework:

  • Short term
  • Long term

Type of measure:

  • Envelope
  • HVAC
  • DHW
  • Lighting
  • Electrical devices
  • Other
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2018-01-24T08:44:45+00:00