2.4.1 Installation of program warm-start ballast

2.4.1 Installation of program warm-start ballast


Program warm-start ballasts incorporate a precise starting sequence to turn on a lamp while minimizing lamp filament wear.


  • These ballasts enable lamps to last about 100,000 switching cycles, whereas instant-start ballasts enable lamps to last only 10,000-15,000 switching cycles
  • Programed warm-start ballasts precisely pre-heat lamp filaments to their optimal temperature prior to start. Once the lamp is ignited, the filament heating is removed, prolonging lamp and ballast life.


  • Only applicable for frequently switched applications, such as when using motion sensors where the lights will be cycled on and off multiple times per day

Economic assessment

Initial investment: medium. Around 30 euros/unit.
Payback: medium. More than 5 years.
Lower maintenance costs.

References and best practices

Image gallery


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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