Photopia | photometric reports
www.ltioptics.com
Number of Lamps | 2 |
Lumens per Lamp | 640 lm |
Total Input Lumens | 1280 lm |
Input Watts | 13.44 W |
Total Output Lumens | 675 lm |
Efficiency | 52.73 % |
Efficacy | 50.22 lm/W |
0° - 180° Size | 0.97 ft |
90° - 270° Size | 0.83 ft |
Height | 0.29 ft |
Distribution | Direct-Indirect |
Photometry Type | C |
Two luminaires, plane 0° | 1 |
Two luminaires, plane 90° | 1.25 |
Four luminaires | 1.12 |
0° - 180° | 69.31° |
90° - 270° | 114.33° |
|
0.00° |
30.00° |
60.00° |
90.00° |
120.00° |
150.00° |
180.00° |
0.00° |
152.94 |
152.94 |
152.94 |
152.94 |
152.94 |
152.94 |
152.94 |
5.00° |
156.36 |
155.63 |
153.99 |
153.75 |
148.85 |
146.99 |
143.21 |
10.00° |
158.12 |
157.98 |
152.97 |
148.73 |
144.54 |
140.68 |
140.19 |
15.00° |
164.49 |
157.25 |
154.61 |
145.95 |
137.44 |
133.31 |
130.03 |
20.00° |
159.25 |
159.72 |
150.69 |
141.25 |
130.74 |
125.87 |
122.23 |
25.00° |
128.36 |
146.21 |
148.74 |
135.84 |
124.36 |
115.96 |
114.94 |
30.00° |
56.58 |
103.37 |
141.46 |
129.02 |
116.05 |
108.78 |
103.70 |
35.00° |
8.76 |
44.98 |
129.71 |
121.08 |
107.75 |
99.11 |
94.80 |
40.00° |
0.82 |
10.78 |
104.23 |
113.42 |
98.46 |
88.76 |
84.19 |
45.00° |
0.10 |
1.54 |
75.84 |
105.72 |
89.16 |
79.46 |
75.36 |
50.00° |
0.00 |
0.21 |
49.39 |
96.07 |
79.78 |
70.54 |
66.36 |
55.00° |
0.00 |
0.03 |
28.53 |
86.46 |
71.44 |
61.15 |
57.31 |
60.00° |
0.00 |
0.00 |
14.30 |
76.72 |
62.12 |
53.03 |
49.24 |
65.00° |
0.00 |
0.00 |
5.64 |
64.55 |
53.78 |
45.29 |
41.85 |
70.00° |
0.00 |
0.00 |
1.41 |
52.38 |
46.56 |
38.25 |
35.75 |
75.00° |
0.00 |
0.00 |
0.18 |
39.14 |
40.87 |
32.00 |
30.06 |
80.00° |
0.00 |
0.00 |
0.03 |
30.74 |
38.21 |
26.84 |
24.70 |
85.00° |
0.00 |
0.00 |
0.00 |
25.24 |
37.33 |
22.90 |
21.74 |
90.00° |
0.00 |
0.00 |
0.00 |
24.08 |
37.36 |
21.80 |
20.27 |
95.00° |
0.00 |
0.00 |
0.00 |
25.53 |
37.80 |
22.69 |
21.38 |
100.00° |
0.00 |
0.00 |
0.02 |
30.66 |
38.53 |
26.59 |
24.61 |
105.00° |
0.00 |
0.00 |
0.19 |
39.25 |
41.00 |
32.56 |
30.12 |
110.00° |
0.00 |
0.00 |
1.38 |
51.30 |
46.91 |
38.28 |
35.75 |
115.00° |
0.00 |
0.00 |
5.51 |
64.83 |
53.51 |
45.41 |
41.86 |
120.00° |
0.00 |
0.00 |
14.53 |
76.47 |
61.94 |
52.47 |
49.60 |
125.00° |
0.00 |
0.04 |
28.81 |
86.93 |
71.13 |
60.90 |
57.63 |
130.00° |
0.00 |
0.25 |
48.90 |
96.83 |
79.96 |
69.67 |
66.41 |
135.00° |
0.11 |
1.49 |
75.71 |
105.03 |
89.00 |
79.53 |
76.05 |
140.00° |
0.92 |
10.85 |
105.69 |
114.44 |
97.83 |
89.23 |
85.51 |
145.00° |
8.44 |
44.62 |
129.40 |
121.60 |
106.98 |
97.97 |
95.30 |
150.00° |
57.85 |
103.14 |
142.01 |
129.80 |
116.50 |
107.14 |
104.14 |
155.00° |
128.00 |
147.23 |
148.58 |
135.98 |
124.81 |
117.21 |
112.73 |
160.00° |
160.10 |
157.60 |
150.98 |
140.12 |
131.55 |
124.07 |
122.80 |
165.00° |
162.11 |
158.82 |
153.84 |
145.79 |
140.18 |
133.24 |
134.30 |
170.00° |
159.09 |
158.34 |
152.66 |
149.13 |
144.52 |
140.71 |
141.25 |
175.00° |
154.96 |
155.60 |
152.95 |
150.99 |
148.87 |
146.01 |
146.31 |
180.00° |
151.84 |
151.84 |
151.84 |
151.84 |
151.84 |
151.84 |
151.84 |
Zone |
Lumens |
% Fixture |
0° - 10° |
15.24 |
2.26% |
10° - 20° |
41.06 |
6.08% |
20° - 30° |
59.38 |
8.80% |
30° - 40° |
58.01 |
8.59% |
40° - 50° |
50.13 |
7.43% |
50° - 60° |
41.32 |
6.12% |
60° - 70° |
31.59 |
4.68% |
70° - 80° |
22.81 |
3.38% |
80° - 90° |
17.90 |
2.65% |
90° - 100° |
17.93 |
2.66% |
100° - 110° |
22.85 |
3.38% |
110° - 120° |
31.54 |
4.67% |
120° - 130° |
41.31 |
6.12% |
130° - 140° |
50.17 |
7.43% |
140° - 150° |
58.01 |
8.59% |
150° - 160° |
59.40 |
8.80% |
160° - 170° |
41.13 |
6.09% |
170° - 180° |
15.22 |
2.25% |
0° - 90° |
337.44 |
49.99% |
90° - 180° |
337.55 |
50.01% |
0° - 180° |
675.00 |
100.00% |
Values are lumens delivered to the workplane from a single luminaire
|
ρfc |
20% |
20% |
20% |
20% |
20% |
20% |
20% |
20% |
20% |
20% |
20% |
20% |
20% |
20% |
20% |
20% |
20% |
0% |
|
ρcc |
80% |
80% |
80% |
80% |
70% |
70% |
70% |
70% |
50% |
50% |
50% |
30% |
30% |
30% |
10% |
10% |
10% |
0% |
|
ρw |
70% |
50% |
30% |
10% |
70% |
50% |
30% |
10% |
50% |
30% |
10% |
50% |
30% |
10% |
50% |
30% |
10% |
30% |
|
0 |
723 |
723 |
723 |
723 |
667 |
667 |
667 |
667 |
562 |
562 |
562 |
467 |
467 |
467 |
379 |
379 |
379 |
337 |
|
1 |
657 |
626 |
599 |
574 |
605 |
578 |
555 |
533 |
488 |
471 |
455 |
406 |
394 |
382 |
330 |
321 |
314 |
286 |
|
2 |
599 |
549 |
507 |
472 |
551 |
507 |
471 |
440 |
430 |
403 |
379 |
358 |
339 |
321 |
292 |
278 |
266 |
248 |
|
3 |
548 |
484 |
435 |
395 |
504 |
449 |
405 |
370 |
381 |
349 |
322 |
319 |
295 |
275 |
261 |
244 |
229 |
217 |
|
4 |
503 |
431 |
378 |
337 |
462 |
400 |
353 |
317 |
341 |
305 |
277 |
286 |
260 |
238 |
236 |
216 |
200 |
193 |
RCR |
5 |
463 |
386 |
331 |
291 |
426 |
358 |
310 |
274 |
307 |
270 |
241 |
259 |
231 |
209 |
214 |
194 |
177 |
173 |
|
6 |
428 |
347 |
293 |
254 |
394 |
323 |
275 |
240 |
278 |
240 |
212 |
236 |
207 |
185 |
196 |
174 |
158 |
157 |
|
7 |
397 |
315 |
262 |
224 |
365 |
294 |
246 |
212 |
253 |
216 |
188 |
216 |
187 |
165 |
180 |
158 |
142 |
143 |
|
8 |
369 |
287 |
235 |
200 |
340 |
268 |
221 |
189 |
232 |
195 |
169 |
198 |
169 |
148 |
167 |
145 |
128 |
131 |
|
9 |
344 |
263 |
213 |
179 |
318 |
246 |
201 |
170 |
214 |
177 |
152 |
183 |
155 |
134 |
155 |
133 |
117 |
121 |
|
10 |
322 |
242 |
193 |
161 |
298 |
226 |
183 |
154 |
198 |
162 |
138 |
170 |
142 |
122 |
144 |
123 |
107 |
112 |
Mtg Height |
Light Level |
Beam Diameter |
6.0 ft |
4.2 fc |
12.5 ft |
8.0 ft |
2.4 fc |
16.7 ft |
10.0 ft |
1.5 fc |
20.9 ft |
12.0 ft |
1.1 fc |
25.0 ft |
14.0 ft |
0.8 fc |
29.2 ft |
16.0 ft |
0.6 fc |
33.4 ft |
Corrected UGR values based on total output energy
SHR = 1.0
Ceiling reflectance | 0.7 |
0.7 |
0.5 |
0.5 |
0.3 |
0.7 |
0.7 |
0.5 |
0.5 |
0.3 |
Wall reflectance | 0.5 |
0.3 |
0.5 |
0.3 |
0.3 |
0.5 |
0.3 |
0.5 |
0.3 |
0.3 |
Plane reflectance | 0.2 |
0.2 |
0.2 |
0.2 |
0.2 |
0.2 |
0.2 |
0.2 |
0.2 |
0.2 |
Room dimensions |
Viewed crosswise |
Viewed endwise |
2H |
2H |
-53.8 | -52.9 | -52.8 | -52.0 | -50.7 | 9.7 | 10.5 | 10.6 | 11.5 | 12.8 |
3H |
-54.0 | -53.2 | -53.0 | -52.2 | -50.9 | 11.7 | 12.4 | 12.6 | 13.4 | 14.7 |
4H |
-54.1 | -53.4 | -53.1 | -52.4 | -51.1 | 12.4 | 13.2 | 13.4 | 14.2 | 15.5 |
6H |
-54.2 | -53.5 | -53.2 | -52.5 | -51.2 | 13.1 | 13.8 | 14.1 | 14.8 | 16.1 |
8H |
-54.2 | -53.6 | -53.2 | -52.6 | -51.3 | 13.5 | 14.1 | 14.5 | 15.1 | 16.4 |
12H |
-54.3 | -53.7 | -53.3 | -52.7 | -51.3 | 13.8 | 14.4 | 14.8 | 15.4 | 16.7 |
4H |
2H |
-15.9 | -15.2 | -15.0 | -14.2 | -12.9 | 10.0 | 10.7 | 11.0 | 11.7 | 13.0 |
3H |
-16.1 | -15.5 | -15.1 | -14.5 | -13.2 | 12.2 | 12.8 | 13.2 | 13.8 | 15.2 |
4H |
-16.2 | -15.7 | -15.2 | -14.7 | -13.3 | 13.2 | 13.7 | 14.2 | 14.8 | 16.1 |
6H |
-16.3 | -15.9 | -15.3 | -14.8 | -13.5 | 14.1 | 14.6 | 15.1 | 15.6 | 17.0 |
8H |
-16.4 | -15.9 | -15.4 | -14.9 | -13.6 | 14.6 | 15.0 | 15.6 | 16.0 | 17.4 |
12H |
-16.5 | -16.0 | -15.4 | -15.0 | -13.7 | 15.0 | 15.4 | 16.0 | 16.4 | 17.8 |
8H |
4H |
-12.9 | -12.4 | -11.8 | -11.4 | -10.0 | 13.4 | 13.9 | 14.4 | 14.9 | 16.2 |
6H |
-13.0 | -12.6 | -11.9 | -11.5 | -10.2 | 14.6 | 15.0 | 15.7 | 16.1 | 17.4 |
8H |
-13.0 | -12.7 | -12.0 | -11.6 | -10.3 | 15.3 | 15.6 | 16.3 | 16.6 | 18.0 |
12H |
-13.1 | -12.8 | -12.0 | -11.7 | -10.3 | 15.9 | 16.2 | 16.9 | 17.2 | 18.6 |
12H |
4H |
-10.3 | -9.9 | -9.2 | -8.8 | -7.5 | 13.4 | 13.8 | 14.5 | 14.9 | 16.2 |
6H |
-10.4 | -10.0 | -9.3 | -9.0 | -7.6 | 14.7 | 15.0 | 15.7 | 16.1 | 17.5 |
8H |
-10.4 | -10.1 | -9.4 | -9.1 | -7.7 | 15.4 | 15.7 | 16.5 | 16.8 | 18.2 |
|
0.00° |
45.00° |
90.00° |
0.00° |
2032 |
2032 |
2032 |
45.00° |
1 |
498 |
1470 |
55.00° |
0 |
199 |
1334 |
65.00° |
0 |
45 |
1158 |
75.00° |
0 |
2 |
870 |
85.00° |
0 |
0 |
768 |