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:		LTL13565
MANUFAC:		GOTHAM
LUMCAT:		GQ 250T 6AR "MEDIUM"
LUMINAIRE:		GQ 6" APERTURE QUARTZ DOWNLIGHT 250W T4 MEDIUM
LAMPCAT:		250Q ESM
LAMP:		ONE 250-WATT FROSTED T4 QUARTZ HALOGEN, VERTICAL BASE UP POS.
BALLAST:		NA
_INFOLINK:		www.lithonia.com/visual/ies/ies.asp?vfile=
Number Lamps:		1
Lumens Per Lamp:		4850
Photometric Type:		Type C
Luminous Width:		-0.52 ft
Luminous Length:		-0.52 ft
Luminous Height:		0 ft
Ballast Factor:		1
Input Watts:		250
Efficiency (Total):		65.5 %
Efficiency (Up):		0.0 %
Efficiency (Down):		65.5 %

		Spacing Criteria
		Angle	Value
		All	0.61

		Candela Values:
		0
0		6,727
0.5		6,722
1		6,697
1.5		6,631
2		6,539
2.5		6,443
3		6,349
3.5		6,255
4		6,169
4.5		6,098
5		6,033
5.5		5,969
6		5,905
6.5		5,840
7		5,772
7.5		5,689
8		5,594
8.5		5,489
9		5,374
9.5		5,252
10		5,127
10.5		5,001
11		4,876
11.5		4,752
12		4,626
12.5		4,507
13		4,391
13.5		4,287
14		4,190
14.5		4,107
15		4,039
15.5		3,979
16		3,928
16.5		3,886
17		3,849
17.5		3,813
18		3,778
18.5		3,741
19		3,699
19.5		3,648
20		3,588
20.5		3,525
21		3,458
21.5		3,386
22		3,311
22.5		3,240
23		3,171
23.5		3,106
24		3,043
24.5		2,981
25		2,922
25.5		2,858
26		2,782
26.5		2,686
27		2,568
27.5		2,415
28		2,224
28.5		2,003
29		1,766
29.5		1,511
30		1,257
30.5		1,025
31		821
31.5		664
32		578
32.5		543
33		510
33.5		454
34		379
34.5		298
35		215
35.5		145
36		97
36.5		68
37		50
37.5		39
38		32
38.5		26
39		23
39.5		21
40		20
40.5		19
41		18
41.5		17
42		16
42.5		15
43		14
43.5		14
44		13
44.5		12
45		12
45.5		11
46		11
46.5		10
47		9
47.5		9
48		8
48.5		8
49		7
49.5		7
50		7
50.5		6
51		6
51.5		6
52		5
52.5		5
53		5
53.5		4
54		4
54.5		4
55		4
55.5		3
56		3
56.5		4
57		4
57.5		4
58		4
58.5		3
59		3
59.5		3
60		2
60.5		2
61		2
61.5		2
62		2
62.5		2
63		2
63.5		2
64		2
64.5		2
65		2
65.5		2
66		2
66.5		2
67		2
67.5		1
68		2
68.5		1
69		1
69.5		1
70		1
70.5		1
71		2
71.5		2
72		2
72.5		2
73		2
73.5		1
74		1
74.5		1
75		1
75.5		1
76		1
76.5		1
77		0
77.5		0
78		0
78.5		1
79		1
79.5		1
80		1
80.5		1
81		1
81.5		1
82		1
82.5		1
83		1
83.5		1
84		2
84.5		1
85		1
85.5		1
86		1
86.5		1
87		1
87.5		0
88		1
88.5		0
89		0
89.5		1
90		0

	Average Luminance (cd/sq.m)
	0	45	90
55	355	355	355
65	241	241	241
75	197	197	197
85	584	584	584