2HP 2' x 4' Photometrics
Ordering Information
SAMPLE NUMBER: 2HP2GX-232W26P-UNV-HB81H-U
Candela
Angle Along II 45° Across⊥
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
1674 1674 1674
1660 1673 1680
1625 1665 1697
1571 1646 1694
1502 1603 1667
1422 1543 1619
1331 1462 1585
1231 1374 1552
1120 1288 1501
1000 1198 1421
870 1090 1306
739 956 1160
604 797 967
457 623 581
316 400 301
187 207 212
112 123 135
50 56 62
0 0 0
Coefficients of Utilization
Effective floor cavity reflectance 20%
rc 80% 70% 50% 30% 10% 0%
rw 70 50 30 10 70 50 30 10 50 30 10 50 30 10 50 30 10 0
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
0-180
2HP2-232W26P
Electronic Ballast
(2) F32T8/840 lamps
2850 lumens
Spacing criterion:
(II) 1.2 x mounting height,
(⊥) 1.4 x mounting height
Efficiency = 84.8%
Test Report:
2HP2-232W26P.IES
LER = FP-79
Yearly Cost of 1000
lumens, 3000 hrs at .08
KWH = $3.04
1323 23.3 27.5
2200 38.6 45.5
3975 69.7 82.3
4833 84.8 100.0
4833 84.8 100.0
101 101 101 101 99 99 99 99 94 94 94 90 90 90 87 87 87 85
93 89 85 82 90 87 84 81 83 81 78 80 78 76 77 75 74 72
84 78 72 67 82 76 71 67 73 69 65 70 67 64 68 65 62 60
77 68 62 56 75 67 61 56 65 59 55 62 58 54 60 56 53 51
71 61 53 48 69 59 53 47 57 51 47 55 50 46 54 49 45 44
65 54 47 41 63 53 46 41 51 45 40 50 44 40 48 43 39 38
60 49 41 36 58 48 41 35 46 40 35 45 39 35 43 38 35 33
55 44 37 31 54 43 36 31 42 36 31 41 35 31 40 35 31 29
52 40 33 28 50 40 33 28 38 32 28 37 32 28 36 31 27 26
48 37 30 25 47 36 30 25 35 29 25 34 29 25 33 28 25 23
45 34 27 23 44 33 27 23 33 27 23 32 26 22 31 26 22 21
Luminance Data
Average Average Average
Angle 0-Deg 45-Deg 90-Deg
In Deg cd/sm cd/sm cd/sm
45 2331 2792 3312
55 2123 2747 3333
65 1782 2430 2266
75 1191 1318 1350
85 945 1059 1172
Number
of Lamps
2 or 3 lamps
Wattage (Length)
28T8=28W T8 (48")
(5)
32=32W T8 (48")
Voltage
(3)
120V=120 Volt
277V=277 Volt
347V=347 Volt
UNV=Universal
Voltage 120-277
(4)
Louver Color
W=White (Standard)
S=Silver
Cell Configuration
26=2 Rows of 6, 12 Cell
(2' x 4')
36=3 Rows of 6, 18 Cell
(2' x 4')
Louver Finish
P=Painted White (Standard)
I=Semi-Specular/Haze (Low
Iridescent) (Silver Only)
Options
GL=Single Element
Fuse
GM=Double
Element Fuse
WTR=White Reveal
Flex=Flex Installed
(Reference Flex
ordering information)
EL=Emergency
Installed
(6)
Lamps Installed
(8)
Blank=No Lamps
Installed
L8835=T8 Lamp,
28W and 32W,
3500K
(5)
L8841=T8 Lamp,
28W and 32W,
4100K
(5)
L8835HL=T8 Lamp,
32W, 3500K, 3100
Lumens
L8841HL=T8 Lamp,
32W, 4100K, 3100
Lumens
NOTES:
(1)
Integral end plate grid lock feature not available in heat removal.
(2)
An EQ Grid
Clip is recommended for all 9/16" ceiling systems. Four required per fixture.
(3)
Products also
available in non-US voltages and frequencies for international markets. Standard ballast
configurations also available.
(4)
Not available when specifying emergencies, voltage must
be specific.
(5)
When utilizing 28W T8 lamps, HPT8 Ballast must be specified.
(6)
Fixtures
equipped with “EL” option may require a 5-1/2" housing depth. If installing in field, must use
low profile battery pack.
(7)
Specify row configuration, type in catalog number when ordering
complete fixture.
(8)
Other lamp options available.
For complete product data, reference the Fluorescent Specification binder. Specifications &
dimensions subject to change without notice. Consult your Cooper Lighting Representative for
availability and ordering information.
Options
RIF1=Radio
Interference
Suppressor
20GA/REP=20 Gauge
Riveted Endplates.
For use in New York City.
RLS=Rotor-Lock Socket
(T8 Lamps Only)
(Additional options available)
Packaging
U=Unit Pack
PAL =Job Pack,
out of carton
PALC=Job Pack,
in carton
Ballast Type
(3)
HPT8 Ballast
HB8
L=T8 Electronic Instant Start.
Low Ballast Factor .71–.77
HB8
=T8 Electronic Instant Start.
Ballast Factor .88
HB8
N=T8 Electronic Instant Start.
Normal Ballast Factor 1.0
HB8
H=T8 Electronic Instant Start.
High Ballast Factor 1.15-1.2
HR8
DIM=T8 Electronic Program
Start Step Dimming. Ballast Factor
.88
HR8
L=T8 Electronic Program
Start. Low Ballast Factor .71–.77
HR8
=T8 Electronic Program Start.
Ballast Factor .88
HR8
H=T8 Electronic Program
Start. High Ballast Factor 1.15-1.2
Option – Aluminum Flange Trim
(7)
Blank=SW (Single White)
Type Color
‘S’ Single ‘N’ Natural
‘R’ In Row ‘W’ White
‘E’ End of Row
HR=Heat
Removal
(1)
P=Paralux Louver
Width
2=2' Width
Trim Type
G=Grid/Lay-in (Standard)
G or T=Concealed T
G or T=Slot Grid
(2)
F=Aluminum Flange Trim
(5)
MZ=Modular Trim
AX=Air Supply Floating Louver
X=Blank Side/Floating Louver -
Non-Air Supply (Omit A)
AVX =Air Supply Floating Louver
with Directional Air Vane (Add V)
2=2" Louver Depth
Rating
Blank=
Standard
NY=New York
City Rated
ATW-SW4=
Chicago
Rated
H=High Performance
ACCESSORIES
EQ-CLIP-U=T-BAR Safety
Earthquake Clips
(2)
2HP
Ballast Factor 0.77 0.88 1.0 1.15
FC LPD FC LPD FC LPD FC LPD
8' x 10' 45 0.58 51 0.64 58 0.74 67 0.88
10' x 10' 37 0.48 42 0.53 48 0.62 55 0.73
10' x 12' 30 0.38 34 0.42 39 0.50 45 0.58
Fixture
Spacing
Illuminance Levels (FC) & Watts Per Sq. Ft. (LPD)
Based on 100 ft. x 100 ft. Open Room
2HP2GX-232W26P
8
Illuminance Estimator
Choose the spacing and ballast factor to determine the average footcandle and
watts per square foot values. All calculations are based on the published IESNA
Zonal Cavity Method and associated algorithms. Results are calculated from
the content of the manufacturer’s photometric files.