Outdoor Lighting | For Your Business – Georgia Power

HID or High-IntensityDischargeis a general term used to designate four different types of lamps commonly used for outdoor lighting: mercury vapor, low-pressure sodium, high-pressure sodium and metal halide. HID lamps require a warm-up period to reach full light output. A momentary loss of power can cause the HID fixture to re-strike and have to warm up again a process that can take up to 15 minutes.

Inductionlighting systems are electrode-less and are very similar to conventional fluorescent lighting systems. Induction lighting systems are composed of an electronic ballast (used to generate a high-frequency electronic current), a lamp or discharge vessel (filled with a mixture of gases, including mercury), and a power coupler (an induction coil to convert the high-frequency electronic current into a magnetic field within the discharge vessel). Induction outdoor lighting systems are energy-efficient when compared to mercury vapor, but not when compared to HPS, and provide white light with good color rendering (80+ CRI), quick ignition and re-ignition, and a rated life of up to 100,000 hours. Photometric performance does not compare well to HPS for outdoor lighting applications.

LED or Light-Emitting Diodetechnology is rapidly becoming competitive with high-intensity discharge light sources for outdoor lighting applications.Well-designed LED outdoor lighting luminaires can provide the required surface illuminance using less energy and with improved uniformity compared to HID light sources. LED luminaires may also have significantly longer life (50,000 hours or more) with better lumen maintenance. Other advantages of LED include that they contain no mercury, lead or other known disposal hazards and they come on instantly without a warm-up or re-strike delay. LED technology is improving rapidly in areas of efficacy, color quality, optical design, heat management and cost, and is compatible with dimming and controls systems.

LEP or Light-Emitting Plasmatechnology is an emerging light source and a possible choice for high-lumen outdoor lighting applications. The LEP system consists of an emitter, driver and power supply.LEP is a category of solid-state lighting but is not an LED. With LEP, a solid-state device is used to generate radio frequency energy which powers a plasma light source (quartz capsule embedded in a ceramic puck). Light emitting plasma technology promises high-lumen output, good color rendering, long life, energy efficiency, reduced maintenance requirements, and compatibility with dimming and controls systems.

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Outdoor Lighting | For Your Business - Georgia Power