Photometry Online Viewer

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:		LTL13643
MANUFAC:		GOTHAM
LUMCAT:		GQT 250T 6AR [ narrow ]
LUMINAIRE:		GQT 6" APERTURE TILTABLE QUARTZ DOWNLIGHT 250W T4 NARROW 30 DEGREE TILT
LAMPCAT:		SYL 250Q ESW
LAMP:		ONE 250-WATT FROSTED T4 TUNGSTEN HALOGEN, VERTICAL BASE UP POSITION
_INFOLINK:		www.lithonia.com/visual/ies/ies.asp?vfile=
Number Lamps:		1
Lumens Per Lamp:		4850
Photometric Type:		Type C
Luminous Width:		-0.53 ft
Luminous Length:		-0.53 ft
Luminous Height:		0 ft
Ballast Factor:		1
Input Watts:		250.2
Efficiency (Total):		58.4 %
Efficiency (Up):		0.0 %
Efficiency (Down):		58.4 %

		Spacing Criteria
		Angle	Value
		0	0.36
		90	0.36
		180	0.40

	Candela Values:
	0	22.5	45	67.5	90	112.5	135	157.5	180
0	10,027	10,027	10,027	10,027	10,027	10,027	10,027	10,027	10,027
0.5	9,410	9,551	9,701	9,887	10,102	10,231	10,340	10,361	10,184
1	9,001	9,122	9,308	9,577	9,954	10,253	10,514	10,635	10,451
1.5	8,664	8,732	8,911	9,239	9,730	10,178	10,577	10,790	10,588
2	8,353	8,371	8,526	8,870	9,438	10,007	10,496	10,795	10,570
2.5	8,102	8,089	8,176	8,503	9,107	9,755	10,304	10,647	10,414
3	7,886	7,825	7,854	8,134	8,752	9,437	10,014	10,359	10,124
3.5	7,711	7,591	7,553	7,784	8,387	9,092	9,656	9,985	9,769
4	7,543	7,379	7,279	7,460	8,027	8,733	9,253	9,560	9,356
4.5	7,395	7,178	7,036	7,161	7,672	8,370	8,809	9,116	8,914
5	7,236	6,988	6,802	6,885	7,349	8,008	8,358	8,673	8,506
5.5	7,082	6,801	6,578	6,636	7,057	7,672	7,937	8,270	8,110
6	6,921	6,610	6,365	6,408	6,799	7,367	7,566	7,891	7,745
6.5	6,750	6,419	6,168	6,202	6,579	7,079	7,255	7,558	7,437
7	6,574	6,230	5,979	6,016	6,379	6,815	6,982	7,256	7,145
7.5	6,392	6,030	5,801	5,830	6,191	6,558	6,737	6,975	6,869
8	6,186	5,829	5,624	5,639	6,009	6,316	6,515	6,716	6,648
8.5	5,983	5,628	5,432	5,443	5,826	6,087	6,307	6,478	6,429
9	5,777	5,419	5,226	5,231	5,647	5,862	6,106	6,253	6,198
9.5	5,572	5,212	5,027	5,015	5,470	5,635	5,916	6,041	6,000
10	5,369	5,015	4,839	4,803	5,302	5,413	5,728	5,840	5,804
10.5	5,193	4,826	4,660	4,609	5,136	5,198	5,551	5,639	5,611
11	5,017	4,666	4,490	4,439	4,978	4,997	5,376	5,449	5,437
11.5	4,859	4,530	4,344	4,295	4,825	4,807	5,203	5,267	5,264
12	4,726	4,414	4,215	4,167	4,685	4,621	5,036	5,087	5,100
12.5	4,595	4,310	4,107	4,060	4,555	4,465	4,890	4,926	4,946
13	4,485	4,222	4,010	3,977	4,440	4,325	4,752	4,775	4,806
13.5	4,389	4,144	3,934	3,911	4,352	4,210	4,624	4,639	4,673
14	4,298	4,072	3,867	3,858	4,275	4,117	4,509	4,509	4,538
14.5	4,219	4,002	3,813	3,823	4,203	4,033	4,411	4,379	4,391
15	4,150	3,946	3,765	3,796	4,143	3,966	4,303	4,237	4,252
15.5	4,086	3,901	3,724	3,765	4,084	3,899	4,191	4,094	4,141
16	4,011	3,848	3,678	3,729	4,018	3,821	4,073	3,976	4,021
16.5	3,938	3,780	3,631	3,689	3,947	3,730	3,952	3,851	3,890
17	3,844	3,698	3,577	3,635	3,865	3,625	3,840	3,717	3,740
17.5	3,749	3,608	3,502	3,575	3,780	3,521	3,722	3,580	3,576
18	3,635	3,504	3,417	3,497	3,681	3,435	3,593	3,442	3,423
18.5	3,515	3,393	3,325	3,407	3,578	3,351	3,480	3,308	3,274
19	3,407	3,296	3,231	3,320	3,481	3,262	3,377	3,176	3,117
19.5	3,310	3,203	3,147	3,241	3,391	3,170	3,271	3,051	2,986
20	3,201	3,115	3,064	3,161	3,300	3,085	3,170	2,926	2,851
20.5	3,106	3,027	2,980	3,081	3,216	3,003	3,074	2,802	2,708
21	3,012	2,944	2,905	3,006	3,125	2,923	2,982	2,676	2,568
21.5	2,922	2,865	2,835	2,933	3,037	2,844	2,886	2,542	2,420
22	2,845	2,796	2,770	2,863	2,954	2,771	2,786	2,401	2,270
22.5	2,776	2,740	2,711	2,799	2,879	2,699	2,677	2,262	2,122
23	2,717	2,683	2,659	2,743	2,813	2,630	2,561	2,130	1,994
23.5	2,670	2,631	2,611	2,685	2,751	2,564	2,442	2,003	1,866
24	2,625	2,583	2,562	2,624	2,694	2,498	2,326	1,881	1,741
24.5	2,559	2,523	2,506	2,559	2,636	2,432	2,208	1,760	1,616
25	2,475	2,436	2,426	2,488	2,574	2,365	2,091	1,639	1,491
25.5	2,349	2,313	2,318	2,402	2,504	2,294	1,969	1,517	1,365
26	2,178	2,149	2,177	2,283	2,418	2,218	1,844	1,393	1,240
26.5	1,988	1,956	1,999	2,120	2,298	2,121	1,720	1,266	1,117
27	1,773	1,753	1,799	1,927	2,139	2,000	1,580	1,144	995
27.5	1,564	1,545	1,591	1,722	1,936	1,844	1,416	1,017	871
28	1,380	1,359	1,402	1,524	1,718	1,653	1,239	880	744
28.5	1,199	1,177	1,220	1,341	1,523	1,444	1,046	738	616
29	1,020	1,004	1,045	1,160	1,337	1,240	850	588	486
29.5	869	852	878	983	1,151	1,037	659	445	361
30	754	732	744	828	974	849	495	321	250
30.5	680	654	658	707	812	672	354	221	165
31	626	602	607	625	686	522	252	148	109
31.5	552	535	555	569	599	410	195	106	74
32	455	443	470	510	541	352	166	83	54
32.5	372	355	380	424	481	319	148	68	40
33	280	266	285	341	393	289	136	57	28
33.5	201	188	206	254	317	233	110	41	15
34	148	133	144	180	236	181	83	25	6
34.5	109	95	101	124	165	126	58	16	2
35	78	67	69	84	112	80	37	6	4
35.5	60	50	50	56	74	47	22	2	1
36	51	41	35	39	47	27	13	1	1
36.5	43	36	28	28	29	17	9	0	2
37	40	32	26	23	22	15	5	1	2
37.5	36	31	23	21	19	13	4	0	0
38	35	28	22	20	18	15	4	0	0
38.5	32	26	22	20	19	14	2	0	0
39	30	27	22	20	19	15	1	0	2
39.5	33	28	24	23	21	14	2	0	0
40	36	33	27	25	23	15	1	1	0
40.5	41	36	31	28	24	14	1	0	0
41	45	41	35	31	24	13	1	1	0
41.5	50	44	39	32	23	10	1	0	0
42	53	50	41	33	22	9	1	0	1
42.5	58	54	45	33	19	7	0	1	1
43	65	59	46	31	17	6	1	0	0
43.5	71	64	47	30	14	4	1	0	1
44	78	68	47	28	13	3	1	0	1
44.5	85	70	44	24	11	3	1	1	0
45	90	73	42	21	9	1	0	1	1
45.5	94	72	38	19	7	3	1	1	2
46	98	71	33	17	7	2	2	1	1
46.5	100	68	31	14	4	1	1	2	1
47	97	65	28	12	5	2	1	1	1
47.5	94	58	24	10	4	1	1	1	1
48	86	48	19	8	3	1	0	0	0
48.5	73	38	15	6	2	3	2	1	1
49	54	27	11	5	3	1	1	1	1
49.5	39	19	8	3	2	1	1	1	0
50	24	14	6	2	2	1	1	0	0
50.5	18	9	6	3	2	1	0	1	0
51	12	7	5	4	1	1	0	1	1
51.5	10	7	5	3	2	2	2	1	0
52	10	6	5	2	2	2	1	0	0
52.5	9	7	5	3	1	2	1	0	0
53	9	6	4	2	2	0	1	0	0
53.5	8	5	3	3	1	0	0	0	0
54	7	4	2	1	1	0	0	0	0
54.5	7	4	3	2	0	0	0	0	0
55	7	4	3	0	1	0	0	0	0
55.5	7	4	2	1	0	0	0	0	0
56	4	4	2	1	1	0	0	0	0
56.5	4	4	2	2	1	0	0	0	0
57	5	4	3	1	2	1	0	0	1
57.5	4	3	3	1	2	2	1	1	0
58	4	2	2	1	0	1	1	1	0
58.5	5	4	3	1	1	1	1	2	0
59	5	4	2	2	2	2	1	1	1
59.5	5	4	2	1	3	1	0	1	0
60	5	4	3	2	1	1	1	0	0
60.5	4	4	1	3	3	1	1	1	1
61	4	3	2	2	1	0	1	0	1
61.5	3	3	2	2	2	1	1	0	0
62	4	3	2	1	1	0	0	0	0
62.5	1	2	2	1	1	0	0	0	0
63	2	2	1	1	1	0	0	0	0
63.5	2	2	1	0	1	1	0	1	0
64	1	2	1	2	1	1	0	0	1
64.5	2	2	2	2	1	0	0	0	0
65	1	1	1	0	1	1	0	1	0
65.5	0	1	1	2	0	0	0	0	0
66	0	1	1	1	1	1	1	1	0
66.5	0	0	0	1	1	0	0	1	3
67	1	1	1	1	0	0	0	0	0
67.5	0	1	2	0	1	0	0	0	0
68	2	1	1	1	1	1	1	1	3
68.5	1	1	1	2	1	1	0	1	1
69	2	2	2	1	1	1	0	0	1
69.5	1	2	2	0	1	0	1	1	1
70	0	1	2	2	1	1	0	1	0
70.5	1	1	1	2	1	1	1	1	0
71	1	1	1	1	0	0	2	2	2
71.5	1	1	3	2	1	2	1	1	1
72	1	2	2	0	1	1	1	1	1
72.5	1	2	3	1	1	1	2	1	3
73	3	1	2	2	0	2	2	1	2
73.5	1	2	2	2	2	2	1	1	1
74	1	2	2	2	2	1	1	0	2
74.5	1	1	2	1	1	1	1	1	0
75	1	2	1	1	1	1	0	1	1
75.5	1	2	1	1	1	1	1	2	0
76	0	1	1	0	0	1	1	1	0
76.5	1	3	1	1	1	1	1	1	1
77	0	1	1	1	1	0	0	1	1
77.5	1	1	1	1	1	0	1	1	3
78	0	1	1	1	1	0	0	0	0
78.5	0	2	1	0	1	0	1	0	0
79	3	2	1	1	0	0	0	0	0
79.5	1	1	1	0	0	0	0	0	0
80	3	1	1	0	0	0	0	0	0
80.5	3	1	1	1	0	0	1	0	0
81	1	1	0	1	0	0	0	0	0
81.5	3	0	1	0	0	0	0	1	0
82	1	1	1	0	1	1	0	0	1
82.5	1	1	1	1	1	1	1	1	0
83	1	2	1	1	1	1	1	2	2
83.5	0	0	1	1	1	2	2	1	1
84	0	1	1	2	2	1	1	2	1
84.5	1	1	1	2	1	2	1	2	2
85	0	1	1	1	1	1	2	2	3
85.5	1	2	1	1	2	1	1	2	1
86	1	1	1	1	0	1	1	0	2
86.5	0	1	0	0	0	0	0	0	1
87	0	1	0	0	0	0	0	0	0
87.5	0	1	0	0	0	1	0	0	0
88	0	0	0	0	0	1	0	1	0
88.5	1	0	0	0	1	0	1	0	0
89	0	1	0	0	0	0	1	0	0
89.5	0	0	0	0	0	1	1	1	1
90	0	0	0	0	0	0	0	0	0

	Average Luminance (cd/sq.m)
	0	45	90
55	598	256	85
65	116	116	116
75	189	189	189
85	0	563	563