Ruby Galloway, of Gleeds Research & Development, considers lighting costs
Advancements in technology and the introduction of sophisticated components mean lighting has gone beyond its functional purpose of improving visibility. Carefully designed lighting schemes can change the mood of a living room or restaurant and provide a lift to everyday life. Intelligent systems can be used to detect when lighting is required in order to reduce energy consumption and provide safer, more secure access.
Now there is a wide range of luminaires on the market it is important that the requirement, purpose and primary function of lighting is communicated to the designer or contractor (in the case of D&B) in the early stages of project development. Installation specifications will require co-ordination with various trades and there are a number of key considerations:
- Position of trunking and conduits (note this needs to be identified prior to the first fix)
- Weight and installation requirements in relation to walling and ceiling material
- Reflection against surface finishes
- Identification of the potential for overheating and/or glare
- Capital and operational cost.
Lighting schemes need to address design criteria and meet relevant standards. The design may also need to take account of cost in use and how the energy and carbon emissions can be reduced to comply with European and UK legislation and directives. Lighting should also be analysed for its impact on the environment and nuisance to humans, animals and wildlife. Operational costs are a major factor.
Ruby Galloway is associate director at Gleeds
The rates stated below represent a guide to lighting costs and are current as at Q2 2016. No allowance is made for sundry or related preliminaries costs. VAT is excluded.
All-in rates for lighting points £ per point
Cost for lighting points including rose and wireways in PVC excl luminaires
Domestic/industrial and commercial properties £44-£50/£55-67
As above in LSF cable, industrial and commercial properties £72-£83
Luminaires – fluorescent internal £ per unit
Batten
600mm twin, 18W £28-£39
1200mm single/twin, 36W £33-£50/£44-£61
1800mm single/twin, 70W £55-£67/£72-£89
Opal diffuser (surface fixed)
600mm twin, 18W £50-£61
1200mm single/twin, 36W £55-£67/£67-£89
1800mm single/twin, 70W £72-£83/£83-£100
Surface mounted linear fluorescent; T8 lamp; high frequency control gear; low brightness; 65° cut-off; including wedge style louvre
600mm twin, 18W £44-£61
1200mm single/twin, 36W £44-£67/£67-£78
1800mm single/twin, 70W £55-£72/£72-£89
Modular lighting; recessed high frequency control gear, low brightness, 65° cut off; wedge style louvre; fitted to exposed T grid suspended ceiling
600 x 1200mm; 4 x 36W T8 lamps £111-£139
600 x 600mm; 3 x 14W T5 lamps £111-£127
Ceiling recessed asymmetric compact fluorescent downlighter; high frequency control gear; TCD lamp in 200mm dia. luminaire; for wall-washing application
1 x 18W/26W £222-£255
2 x 18W £233-£260
Suspended linear fluorescent; T5 lamp; high frequency control gear; low brightness; 650 cut off; 30% uplight, 70% downlight; including wedge style louvre
1 x 50W £233-£255
Semi-recessed ‘architectural’ linear fluorescent; T5 lamp; high frequency control gear; low brightness, delivers direct, ceiling and graduated wall washing illumination
600 x 600mm; 2 x 24W T8 lamps £188-£222
600 x 600mm; 4 x 14W T8 lamps £211-£255
500 x 500mm/600 x 600mm: 2 x 24W £177-£222
Downlighter, recessed; low voltage; mirror reflector with white /chrome bezel; dimmable transformer, for dichroic lamps
85mm diameter x 20/50W £33-£50
118mm diameter x 50W £44-£61
165mm diameter x 100W £139-£166
LED lighting
Typical LED downlight up to 50W £111-£150
Recessed LED office luminaire 40W £23-£289
Lighting track £ per m
25A, steel trunking, low voltage, copper conductors, couplers and supports
Three circuit/1200mm single £33-£44/ £44-£67
High/low bay luminaires £ per point
Compact discharge; aluminium reflector
150W/250W £116-£150
400W £122-£155
Sealed discharge; aluminium reflector
150W/250W £277-£333
400W £349-£404
Flameproof to IIA/IIB, I.P. 64; aluminium body
600mm single/ 1200mm twin, 18W £466-£610
1800mm single/twin 70W £610-£754
Luminaires – external
Floodlight, enclosed high performance discharge light, reflector, toughened glass
100W-150W/250W £144-£222/£260-£321
1500mm circular bollard, vandal resistant with polycarbonate visors
50W-70W/ 80W £144-£222/£260-£321
Bollard lighting
Bollard lighting fitting 26 watt TC-D 3500k including control gear, all internal wiring, connections, earthing and 25m of 2.5 mm² 3-core XLPE/SWA/LSF cable installed ex builder’s work £1,042-£1,164
Outdoor flood lighting
Wall mounted with tungsten halogen lamp, mounting bracket, wire guard and all internal wiring and containment, fixed to brickwork or concrete and connected
500W/1000W £211-£255/£255-£321