In-Cove Asymmetry (Ledalite Architectural Products Inc.)

In-Cove Asymmetry^™

2 T8 - Indirect

PHOTOMETRY Provided for mounting position "A" only. Consult factory for other mounting options

OPTICAL SETTING A:

Lower wall brightness plus maximum uniformity on wall

Report#	2100279
Efficiency	72.7%
Peak Candela Value 1986 @	127.5º
Peak: Zenith Ratio	2.2:1
Asymmetric Effectiveness*	56.8%

CANDELA DISTRIBUTION

Vert. Angle	Horizontal Angle					Zonal Lumens
	0	45	90	135	180
0	0	0	0	0	0
5	0	0	0	0	0	0
15	0	0	0	0	0	0
25	0	0	0	0	0	0
35	0	0	0	0	0	0
45	0	0	0	0	0	0
55	0	0	0	0	0	0
65	0	0	0	0	0	0
75	0	0	0	0	0	0
85	0	0	0	0	0	0
90	0	0	0	0	0
95	324	300	39	11	5	176
105	935	877	179	84	66	477
115	1510	1394	330	193	151	700
125	1973	1534	479	273	267	774
135	1961	1532	612	365	333	713
145	1792	1423	725	484	425	591
155	1541	1290	809	612	552	435
165	1270	1126	870	739	693	264
175	994	954	902	857	837	89
180	904	904	904	904	904

COEFFICIENTS OF UTILIZATION (%)

Ceiling Wall RCR	80				70			50			0 0
Ceiling Wall RCR	70	50	30	10	70	50	30	50	30	10	0 0
0	69	69	69	69	59	59	59	40	40	40	0
1	63	60	57	55	53	51	49	35	34	32	0
2	57	52	48	45	48	45	41	30	28	27	0
3	52	46	41	37	44	39	35	27	24	22	0
4	47	40	35	31	40	34	30	23	21	19	0
5	43	35	30	26	37	30	26	21	18	16	0
6	39	31	26	22	33	27	23	18	16	13	0
7	36	28	23	19	31	24	20	17	14	12	0
8	33	25	20	17	28	22	17	15	12	10	0
9	31	23	18	14	26	20	15	13	11	9	0
10	29	21	16	13	24	18	14	12	9	8	0

Based on a floor reflectance of 0.2

OPTICAL SETTING B:

Higher wall brightness with maximum efficiency & more backlight

Report#	2100280
Efficiency	77.1%
Peak Candela Value 1922 @	137.5º
Peak: Zenith Ratio	1.8:1
Asymmetric Effectiveness*	56.3%

CANDELA DISTRIBUTION

Vert. Angle	Horizontal Angle					Zonal Lumens
Vert. Angle	0	45	90	135	180	Zonal Lumens
0	0	0	0	0	0
15	0	0	0	0	0	0
25	0	0	0	0	0	0
35	0	0	0	0	0	0
45	0	0	0	0	0	0
55	0	0	0	0	0	0
65	0	0	0	0	0	0
75	0	0	0	0	0	0
85	0	0	0	0	0	0
90	0	0	0	0	0
95	240	236	44	15	14	150
105	795	768	203	88	80	438
115	1339	1311	377	222	176	687
125	1876	1502	553	367	347	804
135	1920	1562	713	519	479	783
145	1832	1508	846	672	629	675
155	1642	1431	951	822	781	514
165	1439	1308	1022	959	932	316
175	1165	1118	1060	1064	1068	107
180	1064	1064	1064	1064	1064

COEFFICIENTS OF UTILIZATION (%)

Ceiling Wall RCR	80				70			50			0 0
Ceiling Wall RCR	70	50	30	10	70	50	30	50	30	10	0 0
0	73	73	73	73	62	62	62	42	42	42	0
1	67	63	61	58	57	54	52	37	36	34	0
2	60	55	51	47	51	47	44	32	30	28	0
3	55	48	43	39	47	41	37	28	26	24	0
4	50	43	37	33	43	36	32	25	22	20	0
5	46	38	32	28	39	32	27	22	19	17	0
6	42	33	28	24	36	29	24	20	17	14	0
7	39	30	24	20	33	26	21	18	15	12	0
8	36	27	21	18	30	23	18	16	13	11	0
9	33	24	19	15	28	21	16	14	11	9	0
10	30	22	17	13	26	19	15	13	10	8	0

Based on a floor reflectance of 0.2

SPECIFICATIONS

Housing: Die-formed 24 ga. metal painted white

Optical system: Constructed of highly specular aluminum and highly reflective 24 ga. metal to produce an indirect distribution.

Joints: Integral with each module. One screw required per joint (provided by others) to attach to structure.

Electrical: All luminaire sections shall be factory pre-wired to section ends. Optional quick connect plugs are available.

Ballast: Electronic rapid start, instant start or dimming.

Approvals: Certified to UL & CSA standards.

*Asymmetric effectiveness refers to the percentage of lamp lumens distributed on the room side of the luminaire, above 90 degrees.

©1997 Ledalite Architectural Products Inc. 9087A - 198th Street, Langley, B.C., Canada, V1M 3B1Phone: 604-888-6811 Toll Free Fax: 1-800-665-LEDA (5332) Email: info@ledalite.com WWW: http://www.ledalite.com

In-Cove Asymmetry - Page 5