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Lighting. Artificial Light Units of Measurement Input Power – Watts Light Output – Lumens Efficacy* (of light source) – Lumens per watt Efficiency (of.

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Presentation on theme: "Lighting. Artificial Light Units of Measurement Input Power – Watts Light Output – Lumens Efficacy* (of light source) – Lumens per watt Efficiency (of."— Presentation transcript:

1 Lighting

2 Artificial Light Units of Measurement 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 * 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

3 Incandescent Advantages of Incandescent Inexpensive Available Everywhere User Familiarity Easily Dimmed Good Color (CRI)

4 Incandescent Disadvantages 20% of the energy consumed is converted to light, the rest to heat Short lamp life – hours Low efficacy rating (lumens per watt) They will be outlawed in the future

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6 Incandescent R Lamps R20 incandescent bulb Bulb-R20 Watts-50 or 75 Watts Volts-120 Volts Beam Type-Reflector Base-Medium Color-Inside Frost

7 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 `

8 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.

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10 Halogen Lighting 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 Filament Class- C,CC-8 Candlepower- 3,600 PAR = Parabolic Aluminized Reflector

11 Halogen Lighting 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 PAR 20 halogen lamp

12 Halogen Lighting

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14 MR16 low voltage halogen lamp MR = metalized reflector lamp

15 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

16 Linear Florescent Advantages Long Lamp Life, 24,000 hours plus Energy Efficient Lower Maintenance costs High CRI, can be specified, 70, 80 or 90+

17 Linear Florescent

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19 T-12 fluorescent tube light Light Output 960 lumens Energy Used20 Watts Life 9,000 Avg. Hours Temperature (Kelvin) 6500K

20 T-8 fluorescent tube Light Output 670 lumens Energy Used 15 Watts Life 9,000 Avg. HoursVolts White CRI53 Color Temperature (Kelvin)3000K `

21 T-5 fluorescent tube light Light Output 1,895 Lumens Energy Used Watts Life20,000 Avg. Hours White CRI 85 Color Temperature (Kelvin)3000K `

22 Compact Fluorescent Lamps

23 Compact Fluorescent Lighting Advantages Available in many shapes and size, wattage and versions –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

24 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)

25 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%

26 Compact Fluorescent Lighting

27 LED Lighting Light Emitting Diode low voltage LED

28 LED Under Cabinet Lighting

29 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

30 LED Downlighting CREE LED Lighting LPR Watts Replaces 90W 80 lumens per Watt SACRIFICE NOTHING K K 25° Beam Angle 4000 CBCP 92 CRI 3000K, 2700K Dimmable to 20% REDUCE MAINTENANCE COSTS Designed to last 50,000 hours (open) Designed to last 35,000 hours (non-IC) * CBCP = Center Beam Candlepower

31 More LED Lighting CREE LBR 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-

32 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

33 LED Can Lighting 11.1 Watts Replaces 50W 46 lumens per Watt 90 CRI 2700K or 3500K Dimmable to 20% 30 Degree Shield

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35 Lighting Fiber Optics

36 Fiber optics Types of fibers

37 Xenon under cabinet lighting Height: 1" Width: 5" Number of Bulbs: 3 Maximum Wattage: 18.5W Bulb Base: Wedge T5 Voltage: 120V CRI 100

38 Xenon under cabinet lighting Height: 1“ Width: 5" Number of Bulbs: 2 Maximum Wattage: 18.5W Bulb Base: Wedge T5 Voltage: 120V CRI 100

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