TS: TECHNICAL SUPPORT

Lighting Research Laboratories, Inc.

Test Report No. LRL 397-3K, Date 3/5/97.

Description: Commercially Available 2' x 4' Troffer 2/32W T8 Lamps, 1/2" deep Parabolic Specular Silver Louver. Luminary Watts = 60.0,

Catalog Number: Louver PL1 24 SPS

Lamp Type: F32T8/TL80, Lumens: 3050, Number of Lamps: 2

* Other testing results available upon request.

Total Luminaire Efficiency:

46.2%

Plane:	0°	90°
Spacing Criteria:	1.2	1.5
Shielding Angles:	43	43

ZONAL CAVITY COEFFICIENTS OF UTILIZATION

Ceiling Wall	EFFECTIVE FLOOR CAVITY REFLECTANCE = 20
RC	80	70	50	30	10	00

R	70	50	30	10	70	50	30	10	50	30	10	50	30	10	50	30	10	00
0	55	55	55	55	54	54	54	54	51	51	51	49	49	49	47	47	47	446
1	52	51	50	49	51	50	49	48	48	47	47	47	46	45	45	44	44	43
2	50	48	46	45	49	47	45	44	46	44	43	44	43	42	43	42	41	40
3	48	45	43	41	47	44	42	41	43	41	40	42	40	39	41	40	39	38
4	45	42	39	37	44	41	39	37	40	38	37	39	37	36	38	37	36	35
5	43	39	36	34	42	38	36	34	38	35	34	37	35	33	36	34	33	32
6	40	36	33	31	40	36	33	31	35	33	31	34	32	31	34	32	31	30
7	38	34	31	29	37	33	31	29	33	30	28	32	30	28	32	30	28	27
8	36	31	28	26	35	31	28	26	30	28	26	30	27	26	29	27	26	25
9	33	28	25	23	33	28	25	23	28	25	23	27	25	23	27	25	23	22
10	30	28	22	20	29	25	22	20	24	21	20	24	21	19	23	21	19	19

SPECULAR FINISH

CATALOG NO.	DESCRIPTION	DIMENSION
PL1 14SPS	SPECULAR SILVER	11-3/4" X 47-3/4"
PL1 22SPS	SPECULAR SILVER	23-3/4" X 23-3/4"
PL1 24SPS	SPECULAR SILVER	23-3/4" X 47-3/4"

Products listed above are polystyrene. For Acrylic Louvers, add A after catalog number. DURABOLIC finish available on Specular Silver only. To order, replace SPS with DSPS. For further finish replace SPS with SPG for Specular Gold* or SSS for Semi-Specular Silver. *DURABOLIC Finish standard on Specular Gold.

ZONAL LUMEN SUMMARY

ZONE

LUMENS

% LAMP

DIMENSION

0-30	1308	21.4	46.4
0-40	2191	35.9	77.8
0-60	2816	46.2	100
0-90	2816	46.2	100
90-180	0	0.00	0.00
0-180	2816	46.2	100.0

LUMINANCE DATA IN FOOTLAMBERTS

ANG. IN DEG.

AVG. 0-DEG.

AVG. 45-DEG.

AVG. 90-DEG.

45	1440	1888	2001
55	28	105	17
65	0	0	0
75	0	0	0
85	0	0	0

CANDLE POWER DISTRIBUTION

VER. ANG	HORIZONTAL ANGLE					ZONAL LUMENS
	0.0	22.5	45.0	67.5	90.0

0.0	1557	1557	1557	1557	1557
5.0	1551	1560	1562	1583	1579	150
15.0	1518	1573	1612	1616	1642	452
25.0	1393	1475	1503	1612	1636	706
35.0	1203	1296	1424	1524	1558	883
45.0	626	727	821	851	870	609
55.0	10	17	37	7	6	15
65.0	0	0	0	0	0	0
75.0	0	0	0	0	0	0
85.0	0	0	0	0	0	0
90.0	0	0	0	0	0	0