Lightolier Specification Decorative Discus 6700MS38U, Page 2 of, Spacing Ratio =, Type, 8’ 8”

							Specification Decorative Discus™ 6700MS38U
Page 2 of 2									Ceiling or ADA Wall Mounted 2D* Compact Fluorescent 1 Lt. 38W
												8’
	60						ROOM SURFACE REFLECTANCES:
												8 fc
							80% Ceiling (effective); 50% Walls; 20% Floor
	50
							2850 Lumens Per Lamp
										9’		9 fc
							Large Room (RCR =1)						8’ 8”
	40						Small Room (RCR =5)
30
														9’
	20										Corridor
											6700MS38U
	10
											8 fc, average
		15	30		45	60	75	90	120		0.5W/sf
					AREA PER FIXTURE IN SQUARE FEET
3		4	5	6	7	8	9		10
				CENTER TO CENTER DISTANCE OF FIXTURES IN FEET

Use quick calculator chart to determine the spacing of 38 Watt units for a desired level of illumination.

SPACING RATIO = 1.3

CERTIFIED TEST REPORTED NO. 0339FR

COMPUTED BY LSI PROGRAM **TEST-LITE**

LIGHTOLIER DECORATIVE FIXTURE “DISCUS”

13 15/16” DIA. ACRYLIC DIFFUSER

G.E. 38W 2D COMPACT FLUORESCENT LAMP. LUMEN RATING = 2850 LMS.

E.S. BALLAST #E512D38120D (WITH HEAT SINK), 120 VAC

				CANDLEPOWER SUMMARY
	180
		ACROSS	ANGLE	MEAN CP	LMS	ANGLE MEAN CP LUMENS
			0	346		90	33
		45
			5	345	33	95	27	30
		ALONG
			10	340		100	24
		90	15	333	94	105	25	27
			20	323		110	28
			25	311	144	115	32	32
			30	296		120	36
			35	278	174	125	40	35
			40	258		130	43
			45	237	183	135	47	36
100		60
			50	213		140	50
			55	187	168	145	51	32
			60	160		150	51
			65	133	132	155	51	24
200			70	107		160	52
			75	82	88	165	51	14
			80	61		170	46
			85	45	50	175	40	4
300			90	33		180	43

ZONAL LUMENS AND PERCENTAGES

	0	30
Date:		July 10, 1997
Prepared for:		Lightolier
		Fall River, MA

TESTED ACCORDING TO IES PROCEDURES. TEST DISTANCE EXCEEDS FIVE TIMES THE GREATEST LUMINOUS OPENING OF LUMINAIRE.

ZONE	LUMENS	% LAMP	% LUMINAIRE
0–30	270	9.50	20.83
0–40	445	15.62	34.25
0–60	795	27.93	61.24
0–90	1066	37.41	82.02
40–90	620	21.79	47.77
60–90	270	9.48	20.78
90–180	233	8.20	17.98
0–180	1299	45.60	100.00

** EFFICIENCY = 45.6% **

COEFFICIENTS OF UTILIZATION

% EFFECTIVE CEILING CAVITY REFLECTANCE

		80			70			50			30			10		0
						% WALL REFLECTANCE										0
	50	30	10	50	30	10	50	30	10	50	30	10	50	30	10
1	.45	.43	.42	.44	.42	.40	.40	.39	.38	.37	.36	.35	.34	.33	.32	.31
2	.40	.37	.34	.38	.35	.33	.35	.33	.31	.33	.31	.29	.30	.29	.27	.26
3	.35	.31	.29	.34	.30	.28	.31	.29	.26	.29	.27	.25	.27	.25	.23	.22
4	.31	.27	.24	.30	.27	.24	.28	.25	.23	.26	.23	.22	.24	.22	.20	.19
5	.28	.24	.21	.27	.23	.20	.25	.22	.20	.23	.21	.19	.22	.19	.18	.17
6	.25	.21	.18	.24	.20	.18	.22	.19	.17	.21	.18	.16	.19	.17	.15	.14
7	.22	.18	.16	.21	.18	.15	.20	.17	.15	.19	.16	.14	.17	.15	.13	.12
8	.20	.16	.14	.19	.16	.13	.18	.15	.13	.17	.14	.12	.16	.14	.12	.11
9	.18	.15	.12	.18	.14	.12	.17	.14	.11	.16	.13	.11	.14	.12	.10	.09
10	.17	.13	.11	.16	.13	.10	.15	.12	.10	.14	.11	.10	.13	.11	.09	.08

20% FLOOR CAVITY REFLECTANCE

Job Information	Type:
Lightolier a Genlyte Thomas Company	www.lightolier.com

631 Airport Road, Fall River, MA 02720 • (508) 679-8131 • Fax (508) 674-4710 We reserve the right to change details of design, materials and finish.

© 2003 Genlyte Thomas Group LLC (Lightolier Division) • B1003