Transcript lamps_and_bulbs

Lighting
Artificial Light
Units of Measurement
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Input Power – Watts
Light Output – Lumens
Efficacy* (of light source) – Lumens per watt
Efficiency (of a light fixture) – Stated as a
percentage
• Light Levels (at work plane) – Footcandles
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The amount of energy service or useful energy delivered per unit of energy input. Often used in reference to lighting systems, where
the visible light output of a luminary is relative to power input; expressed in lumens per Watt; the higher the efficacy value, the
higher the energy efficiency
Incandescent
Advantages of Incandescent
• Inexpensive
• Available Everywhere
• User Familiarity
• Easily Dimmed
• Good Color (CRI)
Incandescent
Disadvantages
• 20% of the energy consumed is converted to light, the
rest to heat
• Short lamp life – 850-1000 hours
• Low efficacy rating (lumens per watt)
• They will be outlawed in the future
Incandescent R Lamps
R20 incandescent
bulb
Bulb-R20
Watts-50 or 75 Watts
Volts-120 Volts
Beam Type-Reflector
Base-Medium
Color-Inside Frost
Incandescent R Lamps
R20 reflector bulb
Light Output-400 Lumens
Energy Used- 50Watts
Life-6,000 Avg. Hours
Volts-120 Volts
Bulb Shape-R-20
White CRI 80
Color Temperature
(Kelvin)2700K `
Halogen Lighting
Halogen
• A more efficient incandescent source
• Good “point source” illumination
• Longer Lamp Life – regenerative cycle
Note: Regenerative cycle – As the filament heats up
and tungsten particles are released they combine
with bromine and are redeposited onto the filament
when the lamp is turned off.
Halogen Lighting
PAR = Parabolic Aluminized Reflector
par 38 halogen lamp
Watts-90
Volts-120 Volts
Beam Type- Flood
Beam Spread- 30°
Life Hours- 2,500
Base- Medium Skt.
MOL- 5 5/16"
Lumens- 1300
Filament Class- C,CC-8
Candlepower- 3,600
Halogen Lighting
PAR 20 halogen lamp
Bulb-PAR 20
Watts- 35
Volts- 120 Volts
Beam Type- Narrow Flood
Tungsten Halogen
Capsylite
Beam Spread- 30°
Life Hours- 2,500
Base- Medium
MOL- 3 1/4"
Lumens- 400
Candlepower- 900
Halogen Lighting
Halogen Lighting
Halogen Lighting
MR16 low voltage halogen lamp
MR = metalized reflector lamp
Fluorescent Lighting
Linear Fluorescent
How do they Work?
• A ballast is needed to start the lamp and then it quickly switch
over to the operation mode
• An electric arc is passed between cathodes in a glass tube which
excites mercury and other gasses and produces UV radiant
energy. A phosphor coating on the tube then convert this energy
to visible light.
• Different color temperatures, “warm white” through “cool white
are achieved by adjusting the phosphor coating
Linear Florescent
Advantages
• Long Lamp Life, 24,000 hours plus
• Energy Efficient
• Lower Maintenance costs
• High CRI, can be specified, 70, 80 or 90+
Linear Florescent
Linear Florescent
T-12 fluorescent tube light
• Light Output 960 lumens
• Energy Used20 Watts
• Life 9,000 Avg. Hours
• Temperature (Kelvin) 6500K
T-8 fluorescent tube
• Light Output 670 lumens
• Energy Used 15 Watts
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Life 9,000 Avg. HoursVolts
• White CRI53 Color
Temperature (Kelvin)3000K `
T-5 fluorescent tube light
• Light Output 1,895
Lumens
• Energy Used Watts
• Life20,000 Avg. Hours
• White CRI 85
• Color Temperature
(Kelvin)3000K `
Compact Fluorescent Lamps
Compact Fluorescent Lighting
Advantages
• Available in many shapes and size, wattage and versions
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Self Balasted
Replaceable lamp versions
New GU24 Sockets
Last 10,000 hours or longer
Use 70% less energy than standard incandescent
High CRI (80+)
Price and quality is improving all the time
Compact Fluorescent Lighting
Disadvantages
• Still more expensive than incandescent (first cost)
• Not as user friendly as incandescent
– Most can’t be dimmed or used with photosensors
– Usually shorter lamp life is from over heating (recessed cans,
etc.)
• Requires disposal(all contain a little mercury)
Compact Fluorescent Lighting
Compact Fluorescent Lamps
Full Spectrum Fluorescent
87 CRI
Up to 80% Savings
Lasts 10 times longer than
incandescent
Shows colors more accurately with
less glare 15 Watts = 70 Watts
20 Watts = 75 Watts
25 Watts = 100 Watts
Use 40%
Compact Fluorescent Lighting
LED Lighting
Light Emitting Diode
low voltage LED
LED Under Cabinet Lighting
LED Under Cabinet Lighting
Warm white (2800K) or neutral white (3500K)
LEDs
• Clear or frosted lens
• 50,000 hour LED life at 70% lumen
maintenance
• Only ⅝” profile
• 15vDC driver ordered separately
20w, 30w, 35w, 60w or 75w hardwire driver
or 6w, 15w, 24w, or 40w plug-in driver
LED Downlighting
CREE LED Lighting LPR 38
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13.5 Watts
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Replaces 90W
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80 lumens per Watt
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SACRIFICE NOTHING
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1000 lumens @ 3000K
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950 lumens @ 2700K
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25° Beam Angle
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4000 CBCP
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92 CRI
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3000K, 2700K
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Dimmable to 20%
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REDUCE MAINTENANCE COSTS
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Designed to last 50,000 hours (open)
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Designed to last 35,000 hours (non-IC)
*CBCP = Center Beam Candlepower
More LED Lighting
CREE LBR 30
12 Watts
Equivalent to 60W BR30
50 lumens per Watt
600 lumens
25 and 50 Degree Beam Angles
94 CRI
2700K
REDUCE MAINTENANCE COSTS
Designed to last 50,000 hours (open)
Designed to last 35,000 hours (non-
LED’s for CANS
10.5 Watts
Replaces 65W
55 lumens per Watt
SACRIFICE NOTHING
90 CRI
2700K
Dimmable to 5%
REDUCE MAINTENANCE COSTS
Designed to last 50,000 hours
LED Can Lighting
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11.1 Watts
Replaces 50W
46 lumens per Watt
90 CRI
2700K or 3500K
Dimmable to 20%
30 Degree Shield
Lighting
Fiber Optics
Fiber optics
Types of fibers
Xenon under cabinet lighting
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Height: 1"
Width: 5"
Number of Bulbs: 3
Maximum Wattage: 18.5W
Bulb Base: Wedge T5
Voltage: 120V
• CRI 100
Xenon under cabinet lighting
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Height: 1“
Width: 5"
Number of Bulbs: 2
Maximum Wattage: 18.5W
Bulb Base: Wedge T5
Voltage: 120V
CRI 100