Light Fixtures: A Lamp in a Box. Light fixtures are MORE than a decorative object.

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2 Light Fixtures: A Lamp in a Box Light fixtures are MORE than a decorative object. 2

3 What defines a Light Fixture? Keyless Porcelain Socket Keyed (pull chain) Porcelain Socket Specifications: Method of Mounting Method to make Electrical Connection Housing Lamp Lamp Socket Decorative Lens or Diffuser Shielding or Optics Support Arms or Stem Locking Mechanism Way to access the lamp Ballast or Transformer Aperture Trim & Flange 3

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9 We Define Light Fixtures by their Distribution of Light Goal of a luminaire is to put light where the user needs it Convenient way to classify luminaires is by the direction of light emitted from the luminaire Commission Internationale de l Eclairage (CIE) sets up these classifications horizontal Light going Up / Indirect Light going Down / Direct Distribution of Light 9

10 Distribution Types Direct Semi-Direct General Diffuse Direct-Indirect Semi-Indirect Indirect 10

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13 Distribution: Direct 100% of the light directed down Direct 13

14 Distribution: Direct 100% of the light directed down Direct 14

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16 Distribution: Semi-Direct Smaller portion direct up - Most of the light directed down Semi-Direct 16

17 Distribution: Direct - Indirect 50% of the light directed up - 50% of the light directed down Direct-Indirect 17

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19 Distribution: General Diffuse Light directed evenly around General Diffuse 19

20 Distribution: General Diffuse Light directed evenly around General Diffuse 20

21 Distribution: Semi-Indirect Most of the light direct up - Small portion of the light directed down Semi-Indirect 21

22 Distribution: Semi-Indirect Most of the light direct up - Small portion of the light directed down Semi-Indirect 22

23 Distribution: Semi-Indirect Most of the light direct up - Small portion of the light directed down Semi-Indirect 23

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25 Distribution: Indirect 100% of the light directed up Indirect 25

26 Distribution: Indirect 100% of the light directed up Indirect 26

27 We Define Light Fixtures by their Mounting 27

28 Mounting Surface Typical Components: Recessed Junction Box Housing Back Plate Lamp and Lamp Socket Diffuser or Shielding Base or Leg for Table Lamp 28

29 Surface Mounted Ceiling Light Flush Mounts 29

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31 Wall Sconce / Wall Bracket / Wall Marker Lights Wall Mounts 31

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33 Table Lamps / Floor Lamps Task Lights 33

34 Mounting Pendant Typical Components: Recessed Junction Box Housing Canopy Stem Lamp and Lamp Socket Diffuser or Shielding 34

35 Pendants Suspended Lights / Chandelier 35

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37 Industrial Pendants High Bays / RLM Pendants 37

38 Office Pendants Suspended Linear Pendants 38

39 Mounting Recessed Typical Components: Splice Box Housing Lamp and Lamp Socket Aperture Cone Diffuse or Shielding 39

40 Downlights High Hats / Recessed Cans / Holes in the ceiling Typical components of a recessed downlight. Square Downlight Round Downlight Adjustable Accent Downlight 40

41 Downlights High Hats / Recessed Cans / Holes in the ceiling 41

42 Semi-recessed Downlights Decorative High Hats 42

43 Step Lights Marker Lights / Wall Path Lights Recessed Wall Uplights 43

44 In Grade Lights Landscape Uplights / Burial Lights 44

45 Glare Direct glare from windows and luminaries. Reflected glare on computer screen from ceiling luminaries. 45

46 Downlight Glare Control ceiling ceiling Shielding from eye level sight line deg ceiling sight line ceiling 46

47 Downlight Glare Control Contour of ceiling aperture or louver to provide Glare Control from normal viewing angles sight line 47

48 Downlight Shielding Lamp placed above ceiling aperture or louver to provide shielding from normal viewing angles sight line sight line 48

49 Troffer Shielding sight line Lamp placed above ceiling aperture or louver to provide shielding from normal viewing angles sight line sight line sight line 49

50 Downlight Reflector Reflectors around or above the lamp used to increase performance of the fixture 50

51 Trims Aperture Cones / Aperture Trims 51

52 Troffer 52

53 Reflector Reflectors around or above the lamp used to increase performance of the fixture 53

54 Glare Control Contour of ceiling aperture or louver to provide Glare Control from normal viewing angles sight line 54

55 General or Ambient : Troffer 55

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58 Exterior Pole or Post Mounted 58

59 Exterior Building or Ground Mounted 59

60 Exterior Ground Mounted for Object Lighting 60

61 Fixtures Inside and Out Underwriters Laboratory Testing Dry Applications Damp Applications Wet Applications Wet/Dry Applications Underwater Applications Corrosive Applications Hazardous Applications 61

62 Finding Fixtures General Lighting Mnfrs Websites Light Fixture Search Sites Retail Sites