Lighting , case study & specification
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Transcript of Lighting , case study & specification
INCANDESCENT LIGHT BULB
Bulb contains gas filled or vacuumHOT WIRE – FILAMENT SEALED IN A GLASS JAR (BULB)Efficacy : 12 – 15 lu / wattCRI : 1AColour Temperature 2500 – 2700 KOperating life 1500 hour
INCANDESCENT LIGHT BULBADVANTAGES:1. LESS EXPENSIVE2. EASIER TO DIM WITH RHEOSTATS3. WARMER COLOR THAN FLUORESCENT AND THUNGSTEN-HALOGEN LAMPS4. LIGHT OUTPUT IS RELATIVELY HIGH5. CAN BE DIMMEDDISADVANTAGES:
1. ENERGY INEFFICIENT
2. SHORT LAMP LIFE TIME
3. WARM SOURCE
FLUORESCENT TUBESI. TL-D
II. TL-5
Consumption Power Tube Length Lumen
18 Watt 60 cm 1200 Lumen
36 Watt 120 cm 3000 Lumen
58 Watt 150 cm 5000 Lumen
Consumption Power Tube Length Lumen
14 Watt 60 cm 1200 Lumen
28 Watt 120 cm 3000 Lumen
35 Watt 150 cm 5000 Lumen
FLUORESCENT TUBES
Final Comparison :
Type TL-5 TL-D
Lumen High Lm/W Low Lm/W
Size Diameter : 16 mm Diameter : 35 mm
life time 30,000 hours 10,000 hours
Watt Low power High power
Cost High Low
FLUORESCENT TUBESAdvantages
fluorescent tubes tend to be bigger than other individuals but they work quite well.
Fluorescent tubes give off a lot much less heat than other kinds of lights hence which means that in hot climates or hot climate you will not get as hot just from the light getting turned on.
they have a lot longer life span than a number of other bulbs, this life span can last up to 20 instances longer than the regular equivalent
Disadvantages
if you turn the lights on and off regularly the lifespan of the bulb will be cut dramatically which can finish up costing you much more money in the long run shopping for a lot more.
fluorescent tubes are that they can be a health and safety danger, if they are broken then they can let out tiny amounts of mercury which can be extremely hazardous.
COMPACT FLUORESCENT LAMPS (CFL)A compact fluorescent lamp (CFL), also called compact fluorescent light, energy-saving light, and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent lamp; some types fit into light fixtures formerly used for incandescent lamps. The lamps use a tube which is curved or folded to fit into the space of an incandescent bulb, and a compact electronic ballast in the base of the lamp.
Compared to general-service incandescent lamps giving the same amount of visible light, CFLs use one-fifth to one-third the electric power, and last eight to fifteen times longer. A CFL has a higher purchase price than an incandescent lamp, but can save over five times its purchase price in electricity costs over the lamp's lifetime
COMPACT FLUORESCENT LAMPS (CFL)
Advantages
Energy Star qualified CFLs use at least two-thirds less energy than standard incandescent bulbs
CFLS can last about 6 times longer (average lifespan of a CFL is five to six years).
CFLs save Rs. 1800 or more in energy costs over each bulb's lifetime.
CFLs produce 70 percent less heat, making them safer to operate.
Disadvantages
Skin cancer risk, due to leaking UV radiation, is a concern, which only came to light (so to speak) in July 2012.
Like all fluorescent lamps, CFLs contain mercury, which complicates their disposal and if the bulbs are broken indoors, does present a health risk, especially to small children.
COMPACT FLUORESCENT LAMPS (CFL)
Watt Philips Evereadycrompton greaves
osram
5 NA 127 1408 155 150 145 155
11 NA NA 150 16014 170 NA NA 18015 NA 185 160 NA20 NA 225 200 NA23 273 NA NA 29025 NA NA 225 NA27 310 325 NA NA32 390 NA NA NA
LED Today most efficient way of illumination and lighting, with an estimated energy efficiency of 80%-90% when compared to traditional lighting and conventional light bulbs. This means that about 80% of the electrical energy is converted to light, while a 20% is lost and converted into other forms of energy such as heat.
LEDBasic advantages of LED Light:
Energy efficient - LED’s are now capable of outputting 135 lumens/watt .
Long Lifetime - 50,000 hours or more if properly engineered .
Rugged - LED’s 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 - LED’s light instantly – in nanoseconds .
Excellent Color Rendering - LED’s do not wash out colors like other light sources such as fluorescents, making them perfect for displays and retail applications .
Environmentally friendly - LED’s contain no mercury or other hazardous substances .
Controllable - LED’s can be controlled for brightness and color
LEDs are ideal for use in applications that are subject to frequent on-off cycling, unlike fluorescent lamps that burn out more quickly when cycled frequently, or HID lamps that require a long time before restarting .
LED
Type MRP
0.5-Watt LED Bulb (White and Pack of 6) Rs. 594
2.5-Watt LED Bulb (Warm White and Cool Day Light) Rs. 375
4-Watt LED Bulb (Cool Day Light) Rs.449
5-Watt LED Bulb (Warm White) Rs. 469
7-Watt LED Bulb (Cool Day Light) Rs.599
7.5-Watt LED Bulb (Golden Yellow) Rs. 599
9W LED Bulb (Cool Daylight) Rs. 594
Ace Saver 9W LED Bulb (Crystal White) Rs. 699
9.5-Watt LED Bulb (Cool Day Light) Rs. 799
10-Watt LED Bulb (Cool Day Light) Rs. 699
Stellar Bright 12.5-Watt LED Bulb (Warm White) Rs. 820
Stellar Bright 12.5-Watt LED Bulb (Cool Day Light) Rs. 799
14-Watt LED Bulb (Warm White) Rs. 1149
14-Watt LED Bulb (Cool Day Light) Rs. 999
Philips
LED
Osram
Type MRP
Deco 0.5W White Rs. 100
STAR CLASSIC A60 Lamp Rs. 469
Class A 4W LED Lamp Rs. 499
9W LED Lamp Rs. 749
Star Classic A 10W Bulb Rs. 798
10 W/827 LED Lamp Rs. 799
STAR PAR 6W Lamp Rs. 899
SUPER STAR PAR 5W Lamp Rs. 999
LED
Havels
Model MRP
0.5-Watt LED Lamp (Cool White and Pack of 5) Rs. 350
Adore 3-Watt LED Lamp (Cool Day Light) Rs. 300
3-Watt LED Candle (Warm White) Rs. 316
5-Watt LED Lamp (Cool Day Light) Rs. 355
Adore 5-Watt LED Lamp (Warm White) Rs. 395
Joy Square 5-Watt LED Lamp Rs. 1050
Adore 7-Watt LED Lamp (Cool Day Light) Rs. 490
Adore 7-Watt LED Lamp (Warm White) Rs. 488
Ball 9-Watt CFL Light (Cool Day Light and Pack of 2) Rs. 500
9.5-Watt LED Bulb (Cool Day Light) Rs. 799
A60 10-Watt LED Lamp (Cool White) Rs. 750
10-Watt LED Bulb (Cool Day Light) Rs. 699
15W LED BULB Rs. 950
Endura Elegance 10-Watt LED Lamp Rs. 3000
LED Wipro
Type MRP
0.5W LED Bulb (Yellow, Pack of 6) Rs. 600
5W LED Bulb (Cool White) Rs. 450
7W LED Bulb (Cool Day Light) Rs. 550
9W LED Bulb (Cool Day Light) Rs. 650
Garnet 12 W LED Bulb (White) Rs. 1800
Bajaj Model MRP
Multi Purpose LED Lamp – (White and 3-Watt) Rs. 599
Bajaj LEDZ 8-Watt and Cool Light Rs. 895
0.5-Watt Bulb Rs. 90
Base B22 3-Watt Bulb (Cool Day Light) Rs. 295
0.5-Watt B22 Base Ping Pong LED Bulb (White and Pack of 6) Rs. 570
EFFICACY (LUMEN/WATT)
COLOUR RENDERING INDEX
LUMINANCEINTENCITY
LIFE SPAN(HOURS)
COLOUR TEMPERATURE (KELVIN)
Incandescent lamps
12lumen/watt
100 N.A. <2000Hrs. 2500-2700
Tungsten halogen lamps
10-35 100 1500 CANDELA
1700-2500 3000
Fluorescent lamps
86 80 2830CANDELA
40000-100000
4100
High pressure sodium lamps
81Lumen/watt
25 N.A. 20000-36000 20000
Low pressure sodium lamps
142Lumen/watt
44 N.A. 6000-18000 1800
Mercury vapour lamps
30-65 300 N.A. 24000-175000
6800
Metal halide lamps
65-115 60-90 N.A. 10000-20000
3000-20000
Blended lamps 20-30 62 N.A. 5000 3600
LED lamps 28-15 70 N.A. 25000-100000
2540-10000