9
Special topics
9.7
Lighting levels for different uses
Based on the Electrical and Mechanical Services Department’s Hong Kong Energy End-use Data 2012, retail lighting
consumed over one-fourth of total energy consumption in 2010. Notwithstanding that lighting helps to attract customers,
facilitate sales, enhance store environments and promote brand images to shoppers, it is a crucial element in energy saving.
9.7.1 Recommended lighting levels for different retail areas
It is recommended that
in all internal areas of a development be kept at a sufficient level to maintain a
good visual environment and avoid excess energy usage. In doing so, refer to the table below.
Type of areas
Zones
Maintained illuminance (lux)
General building areas
Outdoor roads, footways & footpaths
5 – 10
Toilets
100
Circulation areas & corridors
100
Escalators/passenger conveyors
150
Entrance halls/lobbies
200
Waiting areas/rooms
200
Atrium
300
Indoor retail
Arcades & shopping malls
50 – 300
Bookshops
500
Jewelers
500
Small shops/department stores
500 or 1000 (based on comfort
requirements of staff)
Supermarkets
750 (general) or 1000 (check-out areas)
Outdoor retail
Outdoor sales areas with low district brightness 50
Outdoor sales areas with high district brightness 200
Catering
Food courts
300
Restaurants
50 – 200 (dimming normally required)
Bars/lounge
100 – 200 (dimming normally required)
Commercial kitchens
500
Banks, building societies &
post offices
Public areas
300
Counters
500
Offices
General
500
Ice rinks
Ice rinks
200
Art galleries
Display
200
Garages
Parking areas & traffic lanes
75
Cinemas
Auditoria
100
Booking offices
300
Stairs
Staircases
120
Lift cars
Lift cars
150
Escape routes
Escape routes
200
Figure 190 Recommended maintained illuminance in common areas
Source:
1. The Chartered Institution of Building Services Engineers. (1994). The Chartered Institution of Building Services
Engineers (CIBSE) Code for Interior Lighting.
2. The Chartered Institution of Building Services Engineers. (2006). The Chartered Institution of Building Services
Engineers (CIBSE) Guide A Environmental Design.
3. European Committee for Standardisation. (2003). British Standard European Standard (BS EN) 12464-1: 2002 Light
and Lighting – Lighting of Work Places - Part 1: Indoor Work Places.
9.7
Lighting levels for different uses
Hong Kong Green Building Council 201
