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Efficient Lighting
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Lamps

See lamps' description in terms of performance, applications, power range, colour temperature, colour rendering index (CRI), luminous efficacy and lifetime. Energy-efficient alternatives are identified by

List per family
List per type of application

- For direct substitution of an existing lamp (depends on lamp see below)
- For a new installation (depends on application)

Integral compact fluo. lamp (see qualification)
Self-ballasted induction lamp (see qualification)
Light-Emitting Diodes (see qualification)
N.B.: it is sometimes cost effective to change the whole incandescent system for a fluorescent or high intensity discharge system. Of particular interest in this case are the low-wattage (<150 watts) metal halide and high pressure sodium lamps ("compact high intensity discharge lamps").

For direct substitution of reflector incandescent lamp :

For direct substitution of 38mm-diameter linear fluorescent lamp:

26mm-diameter linear fluo. lamp (see qualification)
N.B.: it is sometimes cost effective to change the whole T12 system for an electronic highly efficient fluorescent system.

For direct substitution of high pressure mercury lamps:

For a NEW lighting installation where colour rendering is:

Very important (CRI = 90-100, e.g. in art galleries)

Important (CRI = 80-89 e.g. in offices, schools)

Secondary (CRI = 60-79 e.g. in workshops)

Not important (CRI less than 60 e.g. road lighting)