Photometric Data File Viewer
Following the the basic photometric performance for the product you selected.
For additional calculation capabilities, download this file and use a
lighting design software package such as Visual.
| TEST: | | LTL15417 | | DATE: | | 9/7/06 | | MANUFAC: | | LITHONIA GOTHAM | | LUMCAT: | | DTH 20MT4T 4 WIDE | | LUMINAIRE: | | 4" LENSED 20 WATT T4 PHILIPS TWIST-LOCK WIDE DIESTRIBUTION. SOCKET MOUNTED TO BRACKET/ BRACKET MOUNTED BELOW MOUNTING PLATE (1-NUT) | | LAMPCAT: | | CDM-TM 20W/830 | | LAMP: | | ONE 20-WATT CLEAR T4T TWIST-LOCK CERAMIC METAL HALIDE, VERTICAL POS. | | BALLAST: | | M2012-27CK-3EU-J |
| Number Lamps: | |
1 |
| Lumens Per Lamp: | |
1500 |
| Photometric Type: | |
Type C |
| Luminous Width: | |
-0.33 ft |
| Luminous Length: | |
-0.33 ft |
| Luminous Height: | |
0 ft |
| Ballast Factor: | |
1 |
| Input Watts: | |
23.5 |
| Efficiency (Total): | |
69.2 % |
| Efficiency (Up): | |
0.0 % |
| Efficiency (Down): | |
69.2 % |
| | Spacing Criteria | | | Angle | Value | | | All | 0.96 |
| |
Candela Values: |
| |
0 |
| 0 | | 720 | | 2.5 | | 732 | | 5 | | 759 | | 7.5 | | 799 | | 10 | | 844 | | 12.5 | | 898 | | 15 | | 956 | | 17.5 | | 993 | | 20 | | 972 | | 22.5 | | 888 | | 25 | | 761 | | 27.5 | | 624 | | 30 | | 497 | | 32.5 | | 386 | | 35 | | 295 | | 37.5 | | 225 | | 40 | | 172 | | 42.5 | | 131 | | 45 | | 112 | | 47.5 | | 132 | | 50 | | 92 | | 52.5 | | 55 | | 55 | | 38 | | 57.5 | | 31 | | 60 | | 25 | | 62.5 | | 19 | | 65 | | 15 | | 67.5 | | 12 | | 70 | | 9 | | 72.5 | | 7 | | 75 | | 6 | | 77.5 | | 5 | | 80 | | 4 | | 82.5 | | 4 | | 85 | | 3 | | 87.5 | | 1 | | 90 | | 0 |
| | Average Luminance (cd/sq.m) | | | 0 | 45 | 90 | | 55 | | 8,380 | 8,380 | 8,380 | | 65 | | 4,490 | 4,490 | 4,490 | | 75 | | 2,932 | 2,932 | 2,932 | | 85 | | 4,354 | 4,354 | 4,354 |
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