2.4.5 Installation of Lighting Emitting Diode (LED) lamps

2.4.5 Installation of Lighting Emitting Diode (LED) lamps

Description

Light in an LED is emitted by a solid, rather than a gas object as it is the case of the fluorescent tubes. The LED is a semiconductor diode that emits light when it is crossed by an electric current. Wavelength of the emitted light and therefore color basically depends on the chemical composition of the semiconductor material used. When the current flows through the diode, energy is released in the form of photons that is light.

Benefits

  • The start-up occurs instantly at 100% of its intensity without flicker or start-up periods

  • Unlike other systems, it does not degrade by the number of starts
  • Less polluting since they do not contain mercury
  • LEDs have higher efficiency in cold environments, and they are able to turn-on at low temperatures (up to -40° C)

Limitations

  • LEDs can shift color due to age and temperature
  • LED performance largely depends on correctly engineering the fixture to manage the heat generated by the LED, which causes deterioration of the LED chip itself

Economic assessment

Initial investment: high (ten times the price of a conventional installation).
However, it is an emerging technology and it is expected a decrease in the prices in a short term.
Payback: high. Over 5 years. Massive reduction of maintenance costs.

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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2018-01-24T08:43:50+00:00