Illuminance plots

produced from photometry file Hydrel-7200-ITL44144.ies

spacing 5 plot single luminaire plot
In the left half of the left plot, specific illuminance by a continuous row of luminaires spaced 5 heights is shown (right half is for a single luminaire). The right plot is for a single luminaire, unrotated.

illuminance scale

Values below the scale are illuminance / 1 lx. This is for (unrealistic) “unit” case that luminaires would have lamps producing 1 klm only, would be point-like and just 1 m over the terrain.

ies2tab text output:

   
       
# IESNA91
# [DATE]09/07/95
# [TEST]ITL44144
# [MANUFAC] LITHONIA LIGHTING
# [LUMCAT] 7200 400S DFW
# [LUMINAIRE] FLOODLIGHT (DOWNLIGHTS) DOWN FORWARD WIDE. 
# [MORE]CAST METAL HOUSING, BLACK PAINTED GENERAL INTERIOR FINISH,
# [MORE]FABRICATED ELLIPTICAL SPECULAR METAL REFLECTOR WITH SPECULAR
# [MORE]PEENED METAL BACKING, CLEAR FLAT GLASS ENCLOSURE WITH CAST
# [MORE]METAL DOOR FRAME.
# [LAMP]ONE 400-WATT CLEAR E-18 HIGH PRESSURE SODIUM, HORIZONTAL POSITION.
# [OTHER]THE ARC TUBE VOLTAGE RISE=  5.7
# [OTHER]Version: 03/01/1999 - 12:00:00
# [_INFOLINK] www.lithonia.com/visual/ies/ies.asp?vfile=
# TILT=NONE
# Bulbs: 1,  50000 lm each
# Number of measured angles:  38 vertical,  22 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening width, length and height:   1.365   0.917   0.000
# Ballast factor: 1,  Input power:  400 W


# Source file: Hydrel\7200\ITL44144.ies
# Luminaire flux = 32723 lm,
#                   65.4 % of the bulb flux
# between 75 and 90:  0.8 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   4.1 cd/1000lm ,  0.2 % of the luminaire flux
# 90deg and above:  max   0.0 cd/1000lm ,  0.0 % of the luminaire flux
# CutOff Type: Full_CutOff    

# The following table gives luminous intensities which would be produced
# using a hypothetic bulb giving a luminous flux of 1000 lm (i.e., cd/klm):

#  H:   0.0   5.0  15.0  25.0  35.0  45.0  55.0  58.5  65.0  75.0  85.0  90.0  95.0 105.0 115.0 125.0 135.0 145.0 155.0 165.0 175.0 180.0
#V:  
  0.0 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4 171.4
  2.5 172.1 170.6 171.5 171.7 173.2 172.6 173.0 170.5 173.0 173.3 173.5 173.2 173.2 173.0 173.0 172.6 171.9 171.5 171.2 171.2 170.1 170.6
  5.0 172.4 171.4 172.8 174.0 175.7 178.5 177.3 175.7 178.5 179.1 178.4 178.7 178.0 176.9 175.5 174.6 173.3 172.8 171.9 171.0 170.3 169.9
  7.5 174.6 173.5 175.3 177.3 180.7 184.3 186.2 184.1 187.3 187.5 186.6 186.1 185.0 182.7 179.4 176.6 174.6 173.3 170.8 170.1 168.0 168.1
 10.0 174.9 173.3 175.7 180.0 185.0 190.5 195.9 195.7 199.3 198.6 196.8 195.4 193.0 189.3 183.7 179.2 174.9 171.9 169.6 166.7 164.4 164.5
 12.5 170.3 169.6 173.2 180.7 189.6 198.4 204.3 204.5 207.6 209.4 204.7 202.0 198.4 192.5 185.7 179.6 174.2 169.4 166.5 162.9 160.8 159.9
 15.0 165.6 165.1 169.9 179.8 193.2 209.4 222.6 221.5 224.1 222.4 214.4 209.0 203.3 193.2 185.9 177.8 172.6 167.4 162.4 158.5 154.5 154.2
 17.5 160.2 159.3 166.7 181.4 202.7 222.3 241.4 246.5 251.3 245.9 227.8 218.0 208.3 193.4 183.7 176.2 169.6 163.8 158.6 153.6 148.8 149.1
 20.0 154.5 154.2 164.2 187.0 215.1 254.0 287.0 288.2 289.1 270.7 244.1 227.1 212.8 192.3 181.8 174.4 168.1 161.5 155.2 149.1 143.0 143.4
 22.5 148.4 149.5 164.2 195.6 244.3 304.5 314.2 307.9 307.0 286.1 254.9 236.6 218.5 189.3 178.7 173.3 167.1 159.9 151.5 144.3 137.5 138.0
 25.0 144.5 145.4 167.2 208.8 287.9 327.7 331.1 326.4 321.2 291.6 254.7 235.7 218.3 188.0 174.6 170.5 165.4 157.0 147.7 138.9 131.7 130.5
 27.5 140.9 141.2 171.4 239.3 313.5 338.6 351.0 343.4 333.2 297.5 252.7 230.5 209.5 178.9 168.7 166.5 161.5 153.3 141.8 132.5 125.1 123.3
 30.0 135.5 138.0 169.9 263.1 318.3 355.3 361.2 352.4 341.1 300.2 247.5 219.8 196.5 163.5 159.3 159.5 155.8 147.5 135.3 125.5 117.8 116.9
 32.5 131.9 131.9 177.8 276.6 325.9 371.0 366.9 350.6 321.7 252.9 204.0 185.2 169.7 145.4 145.2 148.1 146.8 139.1 127.6 116.7 109.7 109.0
 35.0 122.6 125.3 189.6 281.6 346.3 377.0 344.9 303.8 266.7 195.9 161.1 149.1 142.3 128.7 130.5 133.7 135.3 130.3 119.6 109.0 102.7 101.5
 37.5 116.9 119.6 190.5 287.3 363.0 373.9 305.6 267.8 215.8 166.9 147.2 138.2 133.4 115.3 117.9 120.8 123.1 120.8 111.7 101.6  95.9  95.0
 40.0 109.3 113.6 187.0 285.0 359.9 342.2 263.3 240.2 222.8 188.0 153.6 135.9 123.0 108.3 108.3 110.1 111.8 112.0 105.6  95.2  90.2  89.6
 42.5 103.6 106.7 173.5 271.0 347.7 303.3 259.9 256.5 254.5 212.9 155.9 130.1 113.8 105.6 102.7 101.6 102.0 103.2  99.5  88.9  84.4  83.9
 45.0  98.2 100.6 156.3 257.2 307.4 277.1 281.4 289.3 294.7 235.2 147.3 121.9 110.8 105.4 101.3  97.5  94.8  95.2  94.6  84.1  79.8  79.6
 47.5  90.3  92.3 142.1 232.8 257.4 278.4 330.4 339.5 340.7 244.9 147.0 118.3 108.8 104.7 100.6  95.2  90.2  88.0  89.3  79.2  74.7  74.6
 50.0  82.5  84.1 128.5 190.4 207.9 273.9 371.6 394.0 386.8 262.1 150.9 121.5 109.5 104.0 100.6  94.5  87.8  83.3  84.2  75.8  70.4  70.6
 52.5  74.9  76.5 105.6 147.7 176.7 284.8 397.0 407.8 390.6 248.4 150.2 126.9 111.5 102.5  98.9  92.8  85.7  78.9  78.0  71.0  65.2  65.6
 55.0  67.8  69.2  83.5 108.3 164.0 295.8 389.3 418.9 349.7 219.6 142.9 121.9 109.3 101.3  97.3  92.1  83.5  75.5  72.1  66.5  60.6  60.9
 56.0  63.5  66.0  78.2  96.6 158.1 290.4 404.2 410.3 324.4 206.7 143.8 122.2 109.5  99.8  95.5  91.1  82.3  73.7  69.2  64.5  58.1  58.4
 57.5  59.5  61.5  72.4  87.7 154.7 281.2 399.0 365.7 284.6 199.5 147.2 124.9 110.2  98.4  93.9  90.2  81.0  72.1  65.8  61.5  55.2  55.6
 60.0  50.9  52.0  64.0  78.7 140.5 281.1 316.9 293.6 263.0 205.1 149.5 126.9 107.7  95.2  90.0  86.2  78.2  67.6  59.5  55.4  49.1  49.5
 62.5  41.2  43.4  57.0  70.1 125.3 221.5 245.2 245.9 249.0 210.8 143.0 116.2 100.7  91.4  86.6  82.1  74.9  62.9  54.1  49.1  43.4  44.1
 65.0  33.3  35.7  50.2  60.4 103.1 163.7 219.8 227.5 247.9 197.4 121.0  90.9  77.1  84.2  83.2  78.2  70.4  58.6  49.1  41.9  36.0  36.9
 67.5  26.9  29.6  43.0  51.3  81.7 136.2 200.8 212.4 195.9 113.3  43.0  23.1  13.6  21.2  54.0  73.7  64.9  52.5  39.6  31.7  27.4  28.3
 70.0  20.8  22.6  34.2  43.9  63.8  98.2 135.9 123.1 109.7  79.0  27.4  11.3   7.2   7.2   7.9  30.8  57.0  40.3  27.1  21.3  18.8  19.7
 72.5  14.7  16.3  26.3  37.8  49.5  60.9  70.4  81.9  83.0  50.2  13.4   7.7   6.6   6.3   5.9   7.3  21.0  26.3  15.8  12.7  10.8  11.1
 75.0  10.8  11.5  19.9  31.0  37.6  17.2  42.1  55.4  64.7  27.4   7.7   5.9   4.7   4.5   4.5   5.4   5.2   8.8   6.6   7.3   6.1   6.1
 77.5   5.0   7.3  10.2  14.2   3.9   4.1  16.3  21.0  22.9  10.4   4.8   3.6   3.0   2.7   2.9   3.6   3.6   3.6   4.1   4.8   4.1   4.3
 80.0   2.5   2.7   4.1   2.7   1.8   1.8   2.7   2.5   3.0   2.7   2.3   2.0   2.0   1.8   2.0   2.2   2.3   2.5   2.5   3.0   2.5   2.5
 82.5   1.4   1.4   1.8   1.1   1.1   1.3   1.6   1.3   1.8   1.8   1.6   1.6   1.4   1.6   1.3   1.3   1.3   1.4   1.6   1.6   1.6   1.4
 85.0   0.7   0.5   0.5   0.7   0.7   1.1   1.4   1.3   1.8   2.0   1.3   1.3   1.1   1.3   1.3   0.9   0.9   0.7   0.7   0.5   0.5   0.7
 87.5   0.4   0.5   0.5   0.4   0.4   0.5   0.7   0.5   0.9   0.9   0.9   1.1   0.9   0.9   0.5   0.7   0.5   0.4   0.4   0.4   0.4   0.7
 90.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0

 

(A similar table including even some other results can be computed at producer's website.)