Lighting

LIGHTINGMARKET SURVEY - 2015

OUTDOOR/EXTERIOR LIGHTING

Exterior lighting is an easy and cost-effective way to add beauty and security to your home. Weather-resistant fixtures are available to highlight landscape features, provide security at a door or in a dark area, or allow you to enjoy your patio or garden in the evening.

TYPES OF EXTERIOR LIGHTING

Floodlight. Street and Roadway. Pathway. Parking Lot and Garage. Landscape.

FLOOD LIGHT

Often used for building lighting and other special application such as billboard lighting.

Most types of HID lamps are used in floodlight luminaires.

Exterior building lighting use luminaries with narrow and wide distributions, depending on the portion of the building being illuminated and its distance from the luminaire mounting location.

Floodlights can be used to illuminate outdoor playing fields or work zones during night time hours. The most common type of floodlights are metal halide and high pressure sodium lights.

STREET AND ROADWAY

Usually mounted on arms on a pole, or are post-top mounted.

All types of HID lamps are used; High Pressure Sodium Lamps commonly used for roadway application.

Luminaires with drop dish, or ovate, refractors are commonly used in roadway applications. Because of their appearance, they are referred to as “cobra head” luminaires.

Street Lights are used to light roadways and walkways at night. Some manufacturers are designing LED and photovoltaic luminaires to provide an energy-efficient alternative to traditional street light fixtures.

PATHWAY

Walkway and grounds lighting are often done with bollards.

Mounted in the ground and have the form of a short thick post similar to that found on a ship or wharf. They are used for localized lighting.

Lights placed just above grade level along sidewalks, driveways, or informal paths in the landscape to safely lead a person from one location to another. Path light fixtures are generally low to the ground and cast a spreading light

PARKING Often uses cut-off or semi-cut-off

luminaries with flat bottomed lenses.

Mounted on post-top brackets or on short arms and can be arranged in single, twin, or quad configurations.

Wall mounted luminaries are often used in for small parking lots immediately adjacent to a building or in parking structures, often referred to as “wall packs” wall-mounted luminaries.

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Façade lighting Canopy lights Landscape light

Designed to light buildings, planting, water features (fountains, swimming pools and the like), and walkways.

They can be mounted in the ground, on poles, on trees, or underwater.

Have special housing, casketing, lenses, and electrical wiring hardware that protects against the effects of water and corrosion.

INDOOR/INTERIOR LIGHTING

The definition for interior lighting is simply a vehicle for us to be able to carry out tasks comfortably in our homes or work places.

TYPES OF INTERIOR LIGHTING

Incandescent.

Fluorescent. Compact fluorescent.

Metal halide. LED.

INCANDESCENT Incandescent bulbs require

no external regulating equipment, have a very low manufacturing cost, and work well on either alternating current or direct current.

They are also compatible with control devices such as dimmers, timers, and photo sensors, and can be used both indoors and outdoors.

As a result, the incandescent lamp is widely used both in household and commercial lighting, for portable lighting such as table lamps, car headlamps, and flashlights, and for decorative and advertising lighting.

FLUORESCENT LAMPS

Energy efficient, so far the best light for interior lighting

Low production cost (of tubes, not of the ballasts)

Long life of tubes Good selection of

desired color temperature (cool whites to warm whites)

Diffused Light (good for general, even lighting, reducing harsh shadows)

COMPACT FLUORESCENT

CFLs are up to four times more efficient than incandescent bulbs. You can replace a 100 watt incandescent bulb with a 22 watt CFL for the same amount of light as CFLs use 50 - 80% less energy than incandescent lights.

While initially they may cost more, CFLs are less expensive in the long run as they last much longer than incandescent bulbs. And since CFLs use 1/3 the electricity and last up to 10 times as long as incandescent bulbs, they are much less expensive to operate. You will see a noticeable change in your electricity bills once you change over to CFLs.

You can do your part in reducing carbon emissions by changing over to CFLs. Just one bulb can reduce a half-ton of CO2 out of the atmosphere over the life of the bulb.

CFLs are highly versatile and can be used in any setting that you would normally use incandescent bulbs. They come in enough shapes and sizes that you can use them for recessed fixtures, table lamps, track lighting, or ceiling lighting. 3-way CFLs and CFLs that work with dimmers are also now available.

METAL HALIDE

Long Life Metal halide lamps have an average life of 15,000-20,000+ hours, more than ten times that of incandescent.

Better Light Quality he output of metal halide lamps is closer to natural sunlight than most other light sources. People prefer white light because of better visual acuity, even at lower light levels.

Designable Colour Metal halide lamps can be designed to produce almost any colour temperature desired, from 2700K to 20,000K. Specialty colours, including blue, green, aqua and pink, can also be produced.

Excellent Colour Rendering Metal halide offers excellent colour rendering, with a 65-90 CRI (colour rendering index).

Compact Size Metal halide generates high light levels from a compact light source. This allows for smaller, more controllable luminaires.

Versatility Metal halide lamps are relatively unaffected by ambient temperature, equally suited for indoor or outdoor use. Extensive style and wattage options allow for many applications.

High Efficiency Metal halide lamps generate 65-115 lumens per watt, more than incandescent, fluorescent or mercury vapour lamps. (see chart at right)

LED Energy efficient - LEDs are now capable of

outputting 135 lumens/watt

Long Lifetime - 50,000 hours or more if properly engineered

Rugged - LEDs are also called Solid State Lighting (SSL) as they are made of solid material with no filament or tube or bulb to break

No warm-up period - LEDs light instantly in nanoseconds

Not affected by cold temperatures - LEDs like low temperatures and will start up even in sub zero weather

Directional - With LEDs you can direct the light where you want it, thus no light is wasted

Excellent Colour Rendering - LEDs do not wash out colours like other light sources such as fluorescents, making them perfect for displays and retail applications

Environmentally friendly - LEDs contain no mercury or other hazardous substances

Controllable - LEDs can be controlled for brightness and colour

THANK YOU

Done by- Jijo Kumar Neha Nair