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Lighting

Lighting. 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

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Lighting

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  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 – 850-1000 hours • Low efficacy rating (lumens per watt) • They will be outlawed in the future

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

  6. 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 `

  7. 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.

  8. 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- 1300 Filament Class- C,CC-8 Candlepower- 3,600 PAR = Parabolic Aluminized Reflector

  9. 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

  10. Halogen Lighting

  11. Halogen Lighting

  12. Halogen Lighting MR16 low voltage halogen lamp MR = metalized reflector lamp

  13. 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

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

  15. Linear Florescent

  16. Linear Florescent

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

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

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

  20. Compact Fluorescent Lamps

  21. 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

  22. 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)

  23. 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%

  24. Compact Fluorescent Lighting

  25. LED Lighting Light Emitting Diode low voltage LED

  26. LED Under Cabinet Lighting

  27. 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

  28. LED Downlighting CREE LED Lighting LPR 38 • 13.5 Watts • Replaces 90W • 80 lumens per Watt • SACRIFICE NOTHING • 1000 lumens @ 3000K • 950 lumens @ 2700K • 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

  29. 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-

  30. 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

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

  32. Lighting Fiber Optics

  33. Fiber optics Types of fibers

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

  35. 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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