Lighting controls manage electric lighting levels within specific areas, as and when required to match changes in daylight or occupancy, or individual activities.
A wide variety of lighting control products are available, and these range from simple manual switches to fully automatic control systems that adjust electric lighting levels to reflect planned operating hours, activities, occupation levels and the availability of daylight in specific areas.
The Energy Technology List (ETL) scheme aims to encourage the purchase of lighting controls that realise energy savings by automatically switching or dimming lighting in these ways.
Five different categories of lighting controls are covered by the ETL scheme:
- Time controllers that automatically switch off lighting, or dim it down, at predetermined times.
- Presence detectors with associated controllers that monitor occupancy or movement of personnel, and automatically switch off lighting, or dim it down, when the area is unoccupied.
- Daylight detectors with associated switching controllers that monitor daylight availability, and automatically switch off lighting when daylight is sufficient to illuminate the area.
- Daylight detectors with associated dimming controllers that monitor daylight availability, and automatically dim lighting, by reducing its power consumption, to the level needed to sufficiently illuminate the area.
- Central area and network control units that provide the facility to manage the overall operation of electric lighting installations that include some or all of the categories of lighting controls above.
The above categories of controls may be installed either individually, or in combination.
Eligible lighting controls shall comply with the requirements as set out below. The individual products do not need to be named on the ETL.
Lighting controls are products that are specifically designed to switch electric lighting on or off, and/or to dim its output.
1.3.1 Eligibility requirements
To be eligible, products must:
- Incorporate one or more of the categories of lighting controls set out in Table 1.1, Table 1.2, Table 1.3, Table 1.4 and Table 1.5 below, and comply with the specific eligibility criteria in the relevant table(s).
- Be CE marked.
Products may also incorporate the facility that permits the automatic switching of lights to be temporarily overridden on a central basis for maintenance or security purposes, or to ensure the safety of occupants during particular events or activities.
Table 1.1 Time Controllers
|SECTION 1A – ELIGIBILITY CRITERIA|
To be eligible under this category of Lighting Controls:
Where automatic dimming controls are used, they must be capable of reducing the power consumption of the controlled lamps by at least 75%.
Where fluorescent lighting is being dimmed, it must incorporate high frequency dimmable ballast and electronic control gear. Other forms of lighting may incorporate either mains frequency or high frequency dimmable ballasts and associated controls.
|SECTION 1B – Notes|
Table 1.2 Presence detectors with associated controllers
Table 1.3 Daylight detectors with associated switching controllers
Table 1.4 Daylight detectors with associated dimming controllers
Table 1.5 Central area and network control units (lighting control systems)
1.4 Verification for ETL Listing
This sub-technology is “unlisted” therefore individual products do not need to be listed on the Energy Technology Product List.
1.5 Conformity testing
Products listed on the ETL may be subject to the scheme’s conformity testing programme in order to ensure listed models continue to meet the ETL requirements.