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: | | LTL15356 | | DATE: | | 8/10/06 | | MANUFAC: | | LITHONIA GOTHAM | | LUMCAT: | | DTH 20MT4T 4 MEDIUM | | LUMINAIRE: | | 4" LENSED 20 WATT T4 PHILIPS TWIST-LOCK MEDIUM DISTRIBUTION. SOCKET ON BRACKET/BRACKET UNDER MOUNTING PLATE. | | 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: | |
0 |
| Efficiency (Total): | |
77.4 % |
| Efficiency (Up): | |
0.0 % |
| Efficiency (Down): | |
77.4 % |
| | Spacing Criteria | | | Angle | Value | | | All | 0.69 |
| |
Candela Values: |
| |
0 |
| 0 | | 1,778 | | 2.5 | | 1,762 | | 5 | | 1,746 | | 7.5 | | 1,730 | | 10 | | 1,711 | | 12.5 | | 1,627 | | 15 | | 1,480 | | 17.5 | | 1,278 | | 20 | | 1,063 | | 22.5 | | 859 | | 25 | | 676 | | 27.5 | | 514 | | 30 | | 386 | | 32.5 | | 292 | | 35 | | 224 | | 37.5 | | 175 | | 40 | | 138 | | 42.5 | | 111 | | 45 | | 117 | | 47.5 | | 111 | | 50 | | 67 | | 52.5 | | 43 | | 55 | | 34 | | 57.5 | | 27 | | 60 | | 21 | | 62.5 | | 17 | | 65 | | 13 | | 67.5 | | 10 | | 70 | | 8 | | 72.5 | | 7 | | 75 | | 6 | | 77.5 | | 5 | | 80 | | 4 | | 82.5 | | 4 | | 85 | | 2 | | 87.5 | | 1 | | 90 | | 0 |
| | Average Luminance (cd/sq.m) | | | 0 | 45 | 90 | | 55 | | 7,498 | 7,498 | 7,498 | | 65 | | 3,891 | 3,891 | 3,891 | | 75 | | 2,932 | 2,932 | 2,932 | | 85 | | 2,903 | 2,903 | 2,903 |
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