Specification
2BLT Volumetric Recessed Lighting 2'x4'
PHOTOMETRICS
2BLT4 40L ADP LP835, 3945 delivered lumens, test no. LTL28918P37, tested in accordance to IESNA LM-79
2BLT4 48L ADP LP835, 5121 delivered lumens, test no. LTL28918P41, tested in accordance to IESNA LM-79
0° 20°
40°
60°
80°
90°
0°0°0° 90°
180°
200
400
600
800
1000
1200
Coefficients of Utilization
pf 20%
pc 80% 70% 50%
pw 70%50%30% 50%30%10% 50%30%10%
119
108
98
89
81
75
69
64
59
56
52
119
103
89
78
69
61
55
50
46
42
39
119
98
82
69
60
52
46
41
37
34
31
116
100
87
76
67
60
54
49
45
41
38
116
96
80
68
59
52
46
41
37
33
30
116
92
75
62
52
45
39
35
31
28
25
111
96
83
73
65
58
52
48
44
40
37
111
92
78
66
57
50
45
40
36
33
30
111
89
73
61
52
44
39
34
31
28
25
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°
1037
1686
2970
3947
0
3947
26.3
42.7
75.3
100.0
0.0
100.0
26.3
42.7
75.3
100.0
0.0
100.0
CP Summary
0° 90
0°
5°
15°
25°
35°
45°
55°
65°
75°
85°
90
1356
1330
1269
1147
984
795
599
407
216
54
6
1356
1361
1309
1212
1085
938
777
609
437
179
2
0° 20°
40°
60°
80°
90°
0°0°0° 90°
180°
300
600
900
1200
1500
1800
Coefficients of Utilization
pf 20%
pc 80% 70% 50%
pw 70%50%30% 50%30%10% 50%30%10%
119
108
98
89
81
75
69
64
59
56
52
119
103
89
78
69
61
55
50
46
42
39
119
98
82
69
60
52
46
41
37
34
31
116
100
87
76
67
60
54
49
45
41
38
116
96
80
68
59
52
46
41
37
33
30
116
92
75
62
52
45
39
35
31
28
25
111
96
83
73
65
58
52
48
44
40
37
111
92
78
66
57
50
45
40
36
33
30
111
89
73
61
52
44
39
34
31
28
25
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°
1346
2188
3856
5123
0
5123
26.3
42.7
75.3
100.0
0.0
100.0
26.3
42.7
75.3
100.0
0.0
100.0
CP Summary
0° 90
0°
5°
15°
25°
35°
45°
55°
65°
75°
85°
90
1760
1726
1647
1490
1277
1033
778
528
280
70
8
1760
1767
1699
1574
1409
1217
1008
791
567
232
3
Constant Lumen Management
Enabled by the embedded nLight control, the BLT actively tracks its
run-time and manages its light source such that constant lumen
output is maintained over the system life. Referred to as lumen
management, this feature eliminates the energy waste created by
the traditional practice of over-lighting.
01020304
05
0
THOUSAND OPERATING HOURS
01020304050
THOUSAND OPERATING HOURS
POWER INPUT
LIGHT
OUTPUT
100%
80%
100%
80%
34W
27W
34W
27W
LIGHT OUTPUT
LIGHT OUTPUT
POWER INPUT
POWER INPUT
Without Lumen Management
Energy is wasted and light level is inconsistent.
POWER
INPUT
LIGHT OUTPUT
With Lumen Management
Energy is saved and light level remains consistent.
Wasted Energy
Saved Energy
*DGA accessory available to provide ceiling trim flange and fixture support for plaster
or plasterboard ceiling. Recommended rough-in dimensions for DGA installation is
24-3/4" x 48-3/4" (Tolerance is +1/8", -0”).
Performance Data
Lumen Package Lumens Input Watts LPW
30L ADP LP830 3286 30 110
30L ADP LP835 3371 30 113
30L ADP LP840 3445 30 115
30L ADP LP850 3614 30 121
40L ADP LP830 3846 34 113
40L ADP LP835 3945 34 116
40L ADP LP840 4032 34 118
40L ADP LP850 4230 34 124
48L ADP LP830 4993 45 111
48L ADP LP835 5121 45 114
48L ADP LP840 5234 45 116
48L ADP LP850 5492 45 122
60L ADP LP830 6014 53 114
60L ADP LP835 6169 53 117
60L ADP LP840 6305 53 119
60L ADP LP850 6615 53 125
72L ADP LP830 7388 67 110
72L ADP LP835 7579 67 113
72L ADP LP840 7746 67 115
72L ADP LP850 8127 67 121
AIR 30L ADP LP830 3075 30 103
AIR 30L ADP LP835 3138 30 105
AIR 30L ADP LP840 3223 30 108
AIR 30L ADP LP850 3250 30 108
AIR 40L ADP LP830 3599 34 105
AIR 40L ADP LP835 3673 34 108
AIR 40L ADP LP840 3772 34 110
AIR 40L ADP LP850 3804 34 111
AIR 48L ADP LP830 4672 45 104
AIR 48L ADP LP835 4897 45 109
AIR 48L ADP LP840 4897 45 109
AIR 48L ADP LP850 4939 45 110
AIR 60L ADP LP830 5628 53 106
AIR 60L ADP LP835 5743 53 108
AIR 60L ADP LP840 5899 53 111
AIR 60L ADP LP850 5949 53 112
AIR 72L ADP LP830 6914 67 103
AIR 72L ADP LP835 7055 67 105
AIR 72L ADP LP840 7247 67 108
AIR 72L ADP LP850 7309 67 109
MOUNTING DATA
Ceiling Type Appropriate Trim Type
Exposed grid tee (1’ and 9/16”) G
Concealed grid tee G
Plaster or plasterboard G*
9/16 Screw Slot
15/16
HE Performance Data
Lumen Package Lumens Input Watts LPW
30LHE ADP LP830 2755 22 126
30LHE ADP LP835 2826 22 132
30LHE ADP LP840 2888 22 134
30LHE ADP LP850 3030 22 140
48LHE ADP LP830 4655 36 127
48LHE ADP LP835 4775 36 130
48LHE ADP LP840 4880 36 133
48LHE ADP LP850 5121 36 139
60LHE ADP LP830 5473 42 129
60LHE ADP LP835 5614 42 132
60LHE ADP LP840 5738 42 135
60LHE ADP LP850 6020 42 142
72LHE ADP LP830 6805 52 130
72LHE ADP LP835 6981 52 133
72LHE ADP LP840 7135 52 136
72LHE ADP LP850 7486 52 143
85LHE ADP LP830 8189 64 127.
85LHE ADP LP835 8400 64 131
85LHE ADP LP840 8585 64 134
85LHE ADP LP850 9008 64 140
01020304050
THOUSAND OPERATING HOURS
01020304
05
0
THOUSAND OPERATING HOURS
POWER INPUT
LIGHT
OUTPUT
100%
80%
100%
80%
34W
27W
34W
27W
LIGHT OUTPUT
LIGHT OUTPUT
POWER INPUT
POWER INPUT
Without Lumen Management
Energy is wasted and light level is inconsistent.
POWER
INPUT
LIGHT OUTPUT
With Lumen Management
Energy is saved and light level remains consistent.
Wasted Energy
Saved Energy
How to Estimate Delivered Lumens in Emergency Mode
Use the formula below to estimate the delivered lumens in
emergency mode
Delivered Lumens = 1.25 x P x LPW
P = Ouput power of emergency driver. P = 10W for E10WLCP
option.
LPW = Lumen per watt rating of the luminaire. This information
is available on the ABL luminaire spec sheet. LPW = Lumen
per watt rating of the luminaire. LPW information available in
Performance Data section.
2BLT2X4
LED: One Lithonia Way Conyers, GA 30012 Phone: 800-858-7763 www.lithonia.com © 2016-2018 Acuity Brands Lighting, Inc. All rights reserved. Rev. 04/17/18