10 key considerations in outdoor lighting design
1.Lamp type
Select between halogen incandescent, fluorescent, HID, or light-emitting diodes (LEDs) lighting sources.
2. Light output
How many lumens of light output are required to illuminate a work surface, wall, or street to the specified candlepower (or lux) level?
3. Good clarity
Which correlated colour temperature (CCT) and colour rendering index (CRI) are best for the application? What degree of variation between the lamps is permitted?
4. Fixture elevation
Is the application for low-bay, high-bay, or street lighting, or is the ceiling height normal? Lumen output and light distribution characteristics are influenced by fixture height.
5. The arts
Are you seeking any silhouetting, shadowing, or accentuating qualities? Will the time of day or the kind of retail item on display need you to alter the luminaire colour temperature or primary colour?
6. Reverse facade
How far should lights be placed from the lit surface for building envelope outdoor lighting?
Do they belong underground or above ground? How about lighting direction?
7. Security
The safety level is frequently determined by the lumen output and colour quality of the illumination. Other safety measures include the presence of motion sensors and the degree of dimming.
8. Energy usage
The initial potential energy savings will be determined by the type of lighting. You can save much more if you add lighting controls (such timers, motion sensors, and daylight sensors).
9. Light pollution
Lighting fixtures can be given BUG ratings, which indicate how much backlight, uplight, and irritating glare they emit. Rarely, the type of bulb or luminaire chosen and the timing of the lighting might be detrimental to the biological environment.
Making concessions in terms of lighting design and energy usage may be necessary to reduce light pollution.
10. The electrical power usage
Available voltages, and power quality level must all be taken into account.
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