Lighting Design and Drawing Services

Mail: info@ldandds.co.uk

Lighting Advice for non domestic areas













There was a time many years ago when the choice of lamp types was limited to the humble bulb (filament lamp) at the time they did a magnificent job but the lighting industry has developed and so many new lamp types are now available. Why this development – well over time the filament lamps efficiency improved but when compared with modern day lamp types the same light output can be achieved with less than 10% of the energy and with longer lives. When you add to this the variety of light fittings which are available, the different types of control gear and these days the use of Lighting Controls the options are numerous.

Our expert Lighting Advice is available to guide you through the options to achieve what you are looking for.


Lighting Survey to determine Energy Saving

Lamp development, coupled with improvements in the control gear has resulted in a marked increase in efficiency of the lighting circuit.

It is worth considering:-

Whether a simple change of lamp type will result in a significant reduction in running costs.

If running costs achieved by replacing the lighting system would result in a viable pay- back period.

If a planned maintenance scheme for cleaning the luminaires and replacing the lamps at pre-determined intervals would be economical

If you would like advice on saving energy on your lighting installation, or if you would like a survey of the lighting in your premises and a report prepared on any energy savings achievable, please contact us.

Lighting Controls

The use of controls to reduce lighting energy has been growing over recent decades. This can be as simple as a dimmer or as complex as using:-

A photocell to control the artificial lighting to a predetermined level to compensate for the variation of daylight.

A presence detector to switch the lighting on/off when the area is occupied/vacated

A sophisticated lighting control system which can be programmed by computer to apply the signals from switches, photocells and presence detectors to individual luminaires. This system allows reconfiguration of the lighting to be undertaken without changing the wiring when office changes are made.

If you would like advice or a design prepared on this please contact us.

Typical Luminous Efficiency of Frequently Used Lamp Types




Type








GLS
(Light Bulb)

Tungsten Halogen

Metal Halide

Compact Fluorescent

Fluorescent Lamps

LED

High Pressure Sodium

Low Pressure Sodium

Wattage

60

53

250

33

36

8.5

250

91

Lumen Output

700

850

18,000

2250

3350

806

27,000

17,000

Lumens/Watt inc. Gear Losses

12

16

64

68

84

95

98

175

Mail: info@ldandds.co.uk

To obtain a competitively priced quotation please provide us with details of your requirements.