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: | | LTL15262 | | DATE: | | 7/13/06 | | MANUFAC: | | LITHONIA/GOTHAM | | LUMCAT: | | ATH 20MT4 4WIDE | | LUMINAIRE: | | 4" LENSED DOWNLIGHT 20WATT T4 WIDE DISTRIBUTION. | | LAMPCAT: | | CMH20/TC/U/830/G8.5 | | LAMP: | | ONE 20-WATT CLEAR T4 CERAMIC BI-PIN METAL HALIDE, VERTICAL BASE UP POS. | | BALLAST: | | AROMAT M2012-27CK-3EU-J |
| Number Lamps: | |
1 |
| Lumens Per Lamp: | |
1700 |
| Photometric Type: | |
Type C |
| Luminous Width: | |
-0.36 ft |
| Luminous Length: | |
-0.36 ft |
| Luminous Height: | |
0 ft |
| Ballast Factor: | |
1 |
| Input Watts: | |
24 |
| Efficiency (Total): | |
65.6 % |
| Efficiency (Up): | |
0.0 % |
| Efficiency (Down): | |
65.6 % |
| | Spacing Criteria | | | Angle | Value | | | All | 1.14 |
| |
Candela Values: |
| |
0 |
| 0 | | 821 | | 2.5 | | 810 | | 5 | | 784 | | 7.5 | | 758 | | 10 | | 743 | | 12.5 | | 743 | | 15 | | 746 | | 17.5 | | 743 | | 20 | | 736 | | 22.5 | | 726 | | 25 | | 710 | | 27.5 | | 704 | | 30 | | 709 | | 32.5 | | 700 | | 35 | | 631 | | 37.5 | | 507 | | 40 | | 373 | | 42.5 | | 246 | | 45 | | 136 | | 47.5 | | 60 | | 50 | | 23 | | 52.5 | | 10 | | 55 | | 6 | | 57.5 | | 5 | | 60 | | 4 | | 62.5 | | 3 | | 65 | | 2 | | 67.5 | | 2 | | 70 | | 2 | | 72.5 | | 2 | | 75 | | 1 | | 77.5 | | 1 | | 80 | | 1 | | 82.5 | | 1 | | 85 | | 0 | | 87.5 | | 0 | | 90 | | 0 |
| | Average Luminance (cd/sq.m) | | | 0 | 45 | 90 | | 55 | | 1,112 | 1,112 | 1,112 | | 65 | | 503 | 503 | 503 | | 75 | | 411 | 411 | 411 | | 85 | | 0 | 0 | 0 |
|