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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:		LTL15056
DATE:		3/28/06
MANUFAC:		GOTHAM
LUMCAT:		20M T4 4 NARROW
LUMINAIRE:		4" LENSED 20 WATT T4.5 NARROW DISTRIBUTION.
LAMPCAT:		CMH20/TC/U/830/G8.5
LAMP:		ONE 20-WATT CLEAR T4 BI-PIN METAL HALIDE, VERTICAL BASE UP POS.
BALLAST:		M2012-27CK-3EU-J
Number Lamps:		1
Lumens Per Lamp:		1700
Photometric Type:		Type C
Luminous Width:		-0.33 ft
Luminous Length:		-0.33 ft
Luminous Height:		0 ft
Ballast Factor:		1
Input Watts:		23.5
Efficiency (Total):		62.8 %
Efficiency (Up):		0.0 %
Efficiency (Down):		62.8 %

		Spacing Criteria
		Angle	Value
		All	0.43

		Candela Values:
		0
0		3,003
0.5		3,000
1		2,988
1.5		2,968
2		2,939
2.5		2,902
3		2,860
3.5		2,808
4		2,751
4.5		2,690
5		2,625
5.5		2,557
6		2,487
6.5		2,415
7		2,344
7.5		2,270
8		2,198
8.5		2,124
9		2,052
9.5		1,980
10		1,910
10.5		1,841
11		1,772
11.5		1,704
12		1,638
12.5		1,572
13		1,506
13.5		1,441
14		1,379
14.5		1,317
15		1,258
15.5		1,200
16		1,144
16.5		1,088
17		1,035
17.5		983
18		933
18.5		885
19		838
19.5		794
20		753
20.5		714
21		677
21.5		642
22		609
22.5		578
23		549
23.5		521
24		495
24.5		470
25		447
25.5		425
26		405
26.5		386
27		368
27.5		351
28		335
28.5		319
29		305
29.5		292
30		279
30.5		267
31		256
31.5		245
32		235
32.5		226
33		217
33.5		209
34		201
34.5		194
35		187
35.5		180
36		174
36.5		168
37		162
37.5		156
38		151
38.5		146
39		141
39.5		136
40		132
40.5		127
41		122
41.5		118
42		114
42.5		110
43		106
43.5		104
44		102
44.5		102
45		104
45.5		108
46		114
46.5		119
47		123
47.5		127
48		128
48.5		126
49		122
49.5		115
50		108
50.5		100
51		91
51.5		81
52		72
52.5		64
53		58
53.5		54
54		50
54.5		47
55		44
55.5		42
56		39
56.5		37
57		35
57.5		33
58		31
58.5		30
59		28
59.5		27
60		25
60.5		24
61		23
61.5		22
62		21
62.5		20
63		19
63.5		18
64		17
64.5		17
65		16
65.5		15
66		15
66.5		14
67		14
67.5		13
68		13
68.5		12
69		12
69.5		12
70		12
70.5		11
71		11
71.5		11
72		10
72.5		10
73		10
73.5		10
74		10
74.5		9
75		9
75.5		9
76		8
76.5		8
77		8
77.5		8
78		7
78.5		7
79		7
79.5		7
80		7
80.5		6
81		6
81.5		6
82		5
82.5		5
83		5
83.5		4
84		4
84.5		4
85		3
85.5		3
86		3
86.5		3
87		3
87.5		2
88		2
88.5		1
89		1
89.5		1
90		0

	Average Luminance (cd/sq.m)
	0	45	90
55	9,703	9,703	9,703
65	4,789	4,789	4,789
75	4,399	4,399	4,399
85	4,354	4,354	4,354