Cooper Lighting MQT4, E7QT4 User Manual

CATALOG#: TYPE:

Specification grade quartz T4 fixture rated for
direct contact with insulation. The 50° cutoff
to lamp and lamp image provides a glare free,
concentrated distribution of light. Halogen lamps

provide excellent color and long life. Lamp

module and optical element can be changed after
installation to provide a variety of lamp sources
and distributions. e.g. into a PAR36 Adjustable.

A

...

Reflector

.040 thick aluminum spun parabolic upper and lower
reflector. Upper reflector is specular clear, lower
reflector available in iridescent free Clear, Gold,
Black, Haze, Warm Haze Alzak®, or painted gloss
white finish. Special cone colors listed below.

B

...

Flange

Self flange reflector or Die-cast flange with either
matte white or clear coat finish. Die-cast flanges
are easily removed for field painting. Elements are
keyed for proper insertion.

C

...

Attachment

Positive torsion springs pull flange tight to
ceiling. Mechanical light trap eliminates spill light
at edge of flange or reflector.

D

...

Socket

Mini candelabra nickel plated porcelain finish.
Fixed socket height ensures consistent lamp
position.

E

...

Lamp Shield

.125 thick tempered etched glass lens is retained
during relamping and provides ultra-smooth beam
pattern.

F

...

Electrical

Keyed quick connect provides easy lamp module
installation.

G

...

Frame/Housing

Hot dipped galvanized 20 gauge steel frame
with built in 1/2 inch plaster lip. Gunsights allow
for consistent alignment. Aluminum .032 thick
housing allows for heat dissipation and reduces
weight. Top is removable for above-ceiling access.

H

...

Junction Box

18 cubic inches, listed for 4#12 AWG or 6#14 AWG
90° C additional feed through conductors, has six
1/2 inch pryouts.

I

...

Bar Hangers

No Flex®bar hangers with positive locking, for use
with wood, engineered wood and steel frame
joists spaced up to 24" O.C. shipped with platform.
For use in T-bar ceilings order accessory MBCLP.
Nailess barb and locator lip provide consistent
installation height.

Codes

Thermally protected, IP labeled, for use in direct
contact with insulation. Meets Washington State
Air tight requirements, 1995 CABO Model Energy
Code.

Labels

UL and cUL listed, standard wet label,
IBEW union made.

ADI030679

SPECIFICATION FEATURES

H

B

A

D

G

I

C

E

F

MQT4= 7"
QT4 Mini­Candelabra
Socket

ORDERING INFORMATION

Complete unit consists of a platform, module and element

P7

P7=7"
Airtight IC
Rated
housing

MQT4

Lamp

ModulePlatform

COOPER LIGHTING

P7

MQT4

E7QT4

150W T4

7" DOWNLIGHT

6

3/4

"

For additional options
please consult factory.

DESCRIPTION

11"

[280mm]

12 1/4"

[312mm]

8 1/4"

[210mm]

16 3/4"

[426mm]

6 3/4"

[172mm]

7 3/4"

[197mm]

Finish

Accessories

MBCLP=40 Push
On T Bar Clips
(for 10 Units)

PLE7=Plaster
Lip Extension
for Max 2" Thick
Ceiling

Flange

Blank=White
die-cast

SF=Self Flange
RAW=Natural

Die-cast
SFWF=Self

Flange Painted
White

Optical

Element

E7QT4= 7"
QT4
Downlight
Reflector

Standard

B=Black
C=Clear
H=Haze
G=Gold
WMH=Warm Haze
W=Gloss White
MW=Matte White

Custom

K=Cognac
KH=Cognac Haze
CC=Chocolate

Custom Cont.

CCH=Chocolate
Haze

BU=Blush
BUH=Blush Haze
GP=Graphite
GPH=Graphite

Haze
PN=Pine
PNH=Pine Haze
SK=Sky
SKH=Sky Haze

8 1/4"

[210mm]

Ceiling Cutout

7 3/4" (197mm)

PHOTOMETRICS

P7-MQT4-E7QT4C

Test No. H35085
Lamp: Q150T4/Frosted

Lumens: 2700
Cutoff: 50°

Spacing: 0.6

Efficiency: 60.1%
Unit LPW: 10.8

Unit Number: P7-MQT4-E7QT4_

Candelas

Vertical CD
Angle

90 0
85 0
75 0
65 0
55 0
45 42
35 662
25 1116
15 1607

5 2612
0 2818

Luminance

Degree cd/m

2

85

˚

0

75

˚

0

65

˚

0

55

˚

0

45

˚

2593

4'6"
5'6"
6'6"
8'0"
10'0"
12'0"

2'6"
3'0"
3'6"
4'0"
5'0"
6'0"

143

96
69
45
29
20

Cone of Light

Distance to Initial Nadir Beam
Illuminated Plane Footcandles Diameter

Notes and Formulas:

Luminance: To convert cd/m

2

to footlamberts, multiply by 0.2919

Cone of Light:

• Beam diameter is to 50% of maximum footcandles, rounded to the nearest half-foot.

• Footcandle values are initial. Apply appropriate light loss factors where necessary.
See page 64-65 of catalog.

CU Notes/Formulas:

• maintained illuminance=lamp lumens x CU x light loss factors
room area

• total number of luminaires=total room area x maintained illuminance

lamp lumens x CU x light loss factors

• CU data based on 20% effective floor cavity reflectance.

80% 70% 50% 30% 0%

70 50 30 10 50 10 50 10 50 10 0

72 72 72 72 70 70 67 67 64 64 60
66 63 61 59 62 58 60 56 57 55 52
63 59 56 54 58 53 56 52 54 51 49
60 56 52 49 55 49 53 48 52 47 46
57 52 48 46 51 45 50 45 49 44 43
54 49 45 42 48 42 47 42 46 41 40
52 46 42 40 46 39 45 39 44 39 38
49 43 40 37 43 37 42 37 41 36 35
47 41 37 35 40 34 40 34 39 34 33
45 39 35 32 38 32 38 32 37 32 31
42 36 33 30 36 30 36 30 35 30 29

Ceiling Reflectance

Wall Reflectance

Room Cavity Ratio

0
1
2
3
4
5
6
7
8
9

10

Coefficient of UtilizationZonal Lumen Summary

Zone Lumens %Lamp %Luminaire

0-30 1199 44.4 73.8
0-40 1570 58.1 96.7
0-60 1624 60.1 100.0
0-90 1624 60.1 100.0
90-180 0 0.0 0.0
0-180 1624 60.1 100.0

Distribution

0°

Lamp Wattage Multiplier

100W x 0.74

90W x 0.75
75W x 0.60
60W x 0.67

Note: Specifications and Dimensions subject to change without notice.

Visit our web site at www.cooperlighting.com

Customer First Center 1121 Highway 74 South Peachtree City, GA 30269 770.486.4800 FAX [phone] ADI030679

Cooper Lighting 5925 McLaughlin Rd. Mississauga, Ontario, Canada L5R 1B8 905.507.4000 FAX [phone]