8" Vertical T4 Quartz
Incandescent Downlights
DATE:TYPE:
FIRM NAME:
INC8
PROJECT:
One 250W or 400W Frosted
T4 Quartz Incandescent Lamp
APPLICATIONS:
SOCKET:
The Architektūr INC8 T4 Series offers
a T4 downlight that delivers superior
brightness and glare control along and
easy dimming capabilities. Available
in three wattages, this luminaire is
ideal for a wide variety of high ceiling
applications including commercial, retail,
hospitality, and atrium areas.
Metal clad Ceramic E-11 Mini Can Base
T4 lamp shipped in a predetermined socket
position for precise optical control.
INSTALLATION:
One piece 18 Ga. painted galvaneal
steel plaster flange. Prewired J-box.
Regressed tempered glass lens. Diecast
heatsink assembly. Prewired J-box.
Thermal protector. Top relamping
capability.
LABELS:
UL, CSA listed for wet locations Certified
for through branch wiring, 4 in/4 out
#12, 90º C. Thermally protected. Non-IC
rated 250W and 400W products are
marked spacing and must be installed
with minimum spacings between: Centerto-center of adjacent luminaires: 915mm
(36in)
Top of luminaire to overhead building
member: 152mm (6in)
Luminaire center to side of building
member: 915mm (36in)
CO
N
High purity aluminum Alzak reflector.
Self-trim (ST) standard. Painted white
self-trim (WT) available.
One (1) 250W or 400W frosted T4
E-11 Mini Can Base lamp. Osram lamp
included with the 250W model. GE
lamp included with the 400W model.
All photometrics tested with Osram
frosted lamp.
1513/16"
8"
9"
155/16"
TI
REFLECTOR:
171/8"
U
Universal mounting brackets accept 1/2"
EMT conduit or 11/2" lathing channels (by
others), or Prescolite 24" bar hangers (B24
or B6). Minimum center to center fixture
spacing of 36".
HOUSING:
LAMP:
ED
Reflectors
N
Featuring
Ceiling Cutout: 81/4"
Maximum Ceiling Thickness: 1"
For conversion to millimeters,
multiply inches by 25.4
Not to Scale
155/16"
Featuring
Optics
CATALOG NUMBER:
EXAMPLE: INC8250T4FL-ST8T4/6
Order housing, reflector, and accessories separately
HOUSING
HOUSING
DISTRIBUTION
❑SP
Spot (10º)
❑MD
Med. (25º)
❑FL
Flood (40º)
HOUSING
OPTIONS
_
REFLECTOR
❑ST8T4/6
❑277V
8" Specular
277V
Alzak
Step-down Transformer
(250W only)
CP
REFLECTOR
Chicago Plenum. FINISH
Fixture construction and/
or specifications may vary. ❑Blank
Refer to Chicago Plenum Specular Alzak
specification sheets on www.prescolite.com for ❑SS
Semi-specular
details. (120V)
Alzak
❑MFC
1
Not to be used with flood distribution.
American
2
WTR8 trim ring accessory required for
Matte™ Alzak
400W housings.
3
Not available with MFC or semi-specular finish.
4
Sloped ceiling adapters and housing must be
installed in ceiling structure at same time.
D
IS
❑INC8250T4
8", (1) 250W
T4 enclosed
fixture
❑INC8400T42
8", (1) 400W
T4 enclosed
fixture2
REFLECTOR
COLOR
❑BLANK
Clear
❑CG
Champagne
Gold
❑PW
Pewter
❑BL1
Black Alzak
❑WE
Wheat
❑LW
Light Wheat
❑BC1,3
Painted Black
Cone
❑WC1,3
Painted White
Cone
REFLECTOR
OPTIONS
❑TRG
Trim ring gasket
(factory installed)
❑WT
Painted
white
Trim
In a continuing effort to offer the best product possible we reserve the right to change, without
notice, specifications or materials that in our opinion will not alter the function of the product.
Web: www.prescolite.com • Tech Support: (888) 777-4832
_
ACCESSORIES
❑B24
Set of two (2)
24" bar
hangers for
T-bar ceilings
❑B6
Set of two (2)
bar hangers for
ceiling joists up
to 24" centers
❑SCA8D_4
Sloped ceiling
adapter (see
note on back
page)
❑WTR81
White Trim
Ring2
ARCH-INC-044
PHOTOMETRIC DATA
Architektū
¯r - 8" Lensed Vertical T4
Downlights - INC8 T4
LAMP DATA
ED
Rated Watts
250W
400W Rated Lumens
4,850
7,850
Efficacy (LPW)
19
20
Rated Life
2,000
2,000
U
TEST NO. 1533
Clear Lens
COEFFICIENTS OF UTILIZATION CANDLEPOWER
CANDLEPOWER
SUMMARY
SUMMARY
CP
45°
90°
Solite Lens
70% 50%30%10%
20% Effective Floor Cavity Reflectance
% Wall Reflectance
70 5030 10 7050 30 10 50 3010 5030 10 50 3010
1
2
3
4
5
6
7
8
9
10
.82.80.79.77 .81.79.77.76 .76.75.74 .73.72.71 .71.70.69
.79.75.72.70 .77.74.71.69 .72.70.68 .70.68.66 .68.66.65
.75.71.67.64 .73.70.66.64 .68.65.63 .66.64.62 .64.62.61
.71.66.63.60 .70.65.62.59 .64.61.59 .63.60.58 .61.59.57
.68.62.58.56 .67.62.58.55 .61.57.55 .59.57.54 .58.56.54
.65.59.55.52 .64.58.55.52 .57.54.51 .56.53.51 .55.53.51
.62.56.52.49 .61.55.51.49 .54.51.48 .54.51.48 .53.50.48
.59.53.49.46 .59.53.49.46 .52.48.46 .51.48.46 .50.48.45
.57.50.46.44 .56.50.46.44 .49.46.43 .49.46.43 .48.45.43
.54.48.44.41 .54.48.44.41 .47.44.41 .46.43.41 .46.43.41
INC8400T4FL-ST8T4/6
TEST NO. 1533
Prismatic Lens
INC8400T4MD-ST8T4/6
INC8400T4FL-ST8T4/6
1-Q400MC 400W Frosted 120V GE
Spacing Criteria: 0.4
Efficiency: 80.2%
1-Q400MC 400W Frosted 120V GE
Spacing Criteria: 0.7
Efficiency: 72.4%
CANDLEPOWER
CANDLEPOWER
D
IS
CANDLEPOWER
CANDLEPOWER
SUMMARY
SUMMARY
Angle
CP
45°
90°
SUMMARY
SUMMARY
Angle
021711
5 19089704
15 9288 695 736
25 2947 683 778
35700631792
45173557755
55
25 469 693
65 8 400 647
75 8 372 613
85 7 364 578
90 8 319 507
0
TEST NO. 1534
80%
CO
N
057100
5 39765704
15 6611 695 736
25 1176 683 778
35103631792
45 32 557 755
55
22 469 693
65 9 400 647
75 10 372 613
85 11 364 578
90 10 319 507
TEST NO. 1535
Room Cavity
Ratio
Angle
Zonal Cavity Method
% Effective Ceiling Cavity Reflectance
TI
1-Q400MC 400W Frosted 120V GE
Spacing Criteria: 0.2
Efficiency: 73.5%
N
INC8400T4SP-ST8T4/6
CP
45°
90°
0 9481
5 9148704
15 6748 695 736
25 3527 683 778
35 1446 631 792
45457557755
55
36 469 693
65 6 400 647
75 7 372 613
85 11 364 578
NOTES
90 6 319 507
Denotes a Virtual Source reflector.
When ordering a sloped ceiling adapter, specify the degree
of slope in 5° increments (max of 35°). For a more precise
degree or wet ceiling application, please contact factory. The
SCA must be installed during housing installation.
TEST NO. 1533
Web: www.prescolite.com • Tech Support: (888) 777-4832
701 Millennium Boulevard • Greenville, SC 29607 U.S.A. • Phone (864) 678-1000
Copyright ©2013 Prescolite, Inc., a division of Hubbell Lighting, Inc. All Rights Reserved
Specifications subject to change without notice. • Printed in U.S.A. • ARCH-INC-044 • 7/25/13