Cut Sheet
2RT8S-2X2
FLUORESCENT: One Lithonia Way Conyers, GA 30012 Phone: 800.315.4963 Fax: 770-981-8191 www.lithonia.com ©2010-2011 Acuity Brands Lighting, Inc. All rights reserved. Rev. 08/04/11
2RT8S Volumetric Recessed Lighting 2' x 2'
MOUNTING DATA
Continuous row mounting of anged units requires CRE and CRM trim options (see Options).
NOTES:
1 Recommended rough-in dimensions for F-trim xtures 24"x48" (Tolerance is +1/4"-0"). Swing-gate range
1-3/16" to 3-15/16". Swing-gate span 23-3/8" to 26-11/16". Fixture swing-gate points require additional 1-1/16"
over nominal xture height.
T8 Energy Comparison
System Lamp Ballast Input Watts Saved
Type Factor Watts Compared to 2-lamp T8
2RT8B 2-lamp BINP T8 F17T8 0.88 31 28
*The LER (Luminaire Ecacy Rating) is the lumens per watt rating for this xture. It is used to compare the energy eciency of various products. This photometric report is based upon IES testing procedures, as stated in LM-41-1998.
PHOTOMETRICS
2RT8B 217, (2) FO=17 lamps, 1400 lumens per lamp, s/m 1.3 (along) 1.4 (across), test no. LTL18501
0° 20°
40°
60°
80°
90°
0°0°0° 90°
180°
100
200
300
400
500
600
700
Coefficients of Utilization
pf 20%
pc 80% 70% 50%
pw 70%50%30% 50%30%10% 50%30%10%
96
88
80
73
67
61
56
52
49
45
42
96
84
73
64
57
51
46
41
38
34
32
96
81
68
58
50
43
38
34
31
28
25
94
82
72
63
56
50
45
41
37
34
31
94
79
67
57
49
43
38
34
30
28
25
94
77
63
52
44
38
33
29
26
23
21
90
79
69
61
54
48
43
39
36
33
30
90
77
65
56
48
42
37
33
30
27
25
90
74
61
51
44
37
33
29
26
23
21
RCR
0
1
2
3
4
5
6
7
8
9
10
Zonal Lumen Summary
Zone Lumens % Lamp % Fixture
0° - 30°
0° - 40°
0° - 60°
0° - 90°
90° - 180°
0° - 180°
567
945
1718
2137
0
2137
21.4
35.7
64.8
80.6
0.0
80.6
26.5
44.2
80.4
100.0
0.0
100.0
Efficiency: 80.6%
CP Summary
0° 90
0°
5°
15°
25°
35°
45°
55°
65°
75°
85°
90
705
713
690
645
567
461
334
207
97
16
0
705
693
691
677
640
575
481
307
99
9
0