- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 15 Oct 2018
Extra-low voltage lamp
According to BRE’s The essential guide to retail lighting, extra-low voltage lamps are:
‘Small tungsten halogen lamps producing two or three times the light output of conventional filament lamps. Normally powered from a separate 12 V source. Apart from increased efficiency and lamp life, the heating effect is lower, which is preferable for display lighting.’
 Related articles on Designing Buildings Wiki
- Ballast or control gear.
- Colour appearance.
- Daylight benefits in healthcare buildings.
- Daylight factor.
- Daylight lighting systems.
- Dichroic reflector.
- Discharge lamp.
- General lighting v task lighting.
- Lamp efficacy.
- Light pollution.
- Lighting energy numeric indicator LENI.
- Lighting of construction sites.
- Luminaire efficacy.
- Rights to light.
Featured articles and news
The rainbow JCB will be making a welcome return to the London Build Expo on 23 and 24 October at Olympia.
An introductory article to external works - all activities carried out to the external environment of a building project.
With the clock ticking, RIBA say that a 'no deal Brexit' will be "disastrous" for the architecture profession.
The focus is generally on the lime binder, but the aggregate is actually the most significant element.
The importance of communication, collaboration and simplicity when planning construction projects.
New working group is set up to consider options for raising standards across the property agent sector.
BSRIA provide a top 10 list of recent legislation and guidance affecting buildings.
Record third-time winner of the RIBA Stirling Prize - our profile of one of the world's most celebrated architects.
Foster + Partner's London Bloomberg HQ building wins the 2018 Stirling Prize.
A release schedule is prepared if not all required information has been prepared or issued when the contract is executed.