Cooper Lighting MQT4, E7QT4 manual Unit Number P 7 M Q T 4 E 7 Q T, Vertical, Degree cd/m2

Unit Number: P 7 - M Q T 4 - E 7 Q T 4 _

P H O T O M E T R I C S

P7-MQT4-E7QT4C

Test No. H35085

C a n d e l a s

Vertical CD

Distribution L u m i n a n c e

Degree cd/m2

Cone of Light

Distance to Initial Nadir Beam

Lamp: Q150T4/Frosted

Lumens: 2700

Cutoff:50°

Spacing:0.6

Efficiency:	60.1%
Unit LPW:	10.8

Angle
90	0
85	0
75	0
65	0
55	0
45	42
35	662
25	1116
15	1607
5	2612
0	2818

0°

85˚0

75˚0

65˚0

55˚0

45˚ 2593

Illuminated Plane Footcandles		Diameter
4'6"	143	2'6"
5'6"	96	3'0"
6'6"	69	3'6"
8'0"	45	4'0"
10'0"	29	5'0"
12'0"	20	6'0"
Lamp Wattage Multiplier
100W x	0.74
90W x	0.75
75W x	0.60
60W x	0.67

Zonal Lumen Summary				Coefficient of Utilization
Zone	Lumens	%Lamp	%Luminaire	Ceiling Reflectance			80%			70%		50%		30%	0%
0-30	1199	44.4	73.8	Wall Reflectance	70	50	30	10	50	10	50	10	50	10	0
0-40	1570	58.1	96.7	Room Cavity Ratio
0-60	1624	60.1	100.0	0	72	72	72	72	70	70	67	67	64	64	60
0-90	1624	60.1	100.0	1	66	63	61	59	62	58	60	56	57	55	52
90-180	0	0.0	0.0	2	63	59	56	54	58	53	56	52	54	51	49
0-180	1624	60.1	100.0	3	60	56	52	49	55	49	53	48	52	47	46
				4	57	52	48	46	51	45	50	45	49	44	43
				5	54	49	45	42	48	42	47	42	46	41	40
				6	52	46	42	40	46	39	45	39	44	39	38
				7	49	43	40	37	43	37	42	37	41	36	35
				8	47	41	37	35	40	34	40	34	39	34	33
				9	45	39	35	32	38	32	38	32	37	32	31
				10	42	36	33	30	36	30	36	30	35	30	29

Notes and Formulas:

Luminance: To convert cd/m2 to footlamberts, multiply by 0.2919	CU Notes/Formulas:
Cone of Light:	• maintained illuminance=lamp lumens x CU x light loss factors
		room area
• 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.	• total number of luminaires=total room area x maintained illuminance
See page 64-65 of catalog.		lamp lumens x CU x light loss factors
	• CU data based on 20% effective floor cavity reflectance.
		Note: Specifications and Dimensions subject to change without notice.
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