ALP LIghting (ALP Lighting & Ceiling Products, Inc.)

Para-Lite 1

1/2" x 1/2" 1/2" (nominal)

Specifications

Parabolic Louvers shall be Para-Lite 1 as manufactured by A.L.P. Lighting & Ceiling Products, Inc., and shall be one piece injection molded of polystyrene or acrylic with all parabolic surfaces prepared with a primary undercoat, highly specular vacuum metalized finish. Cell dimensions shall be 1/2" x 1/2" x 1/2" and shall provide 44° shielding with a louver efficiency of not less than 46%. This louver has a VCP index rating of .97 (specular silver finish). Available in nominal panel sizes of 1' x 4', 2' x 2' and 2' x 4'

VISUAL COMFORT PROBABILITY TABLE

100 FC Work Plane Illumination Work Plane FC = 100

		LUMINARIES LENGTHWISE				LUMINARIES CROSSWISE
ROOM DIM		MOUNTING HEIGHT
W	L	8.5	10	13	16	8.5	10	13	16
20	20	100	100	100	96	100	100	100	94
20	30	100	100	100	98	100	100	100	97
20	40	100	100	100	99	100	100	100	98
20	60	100	100	100	100	100	100	100	99

30	20	100	100	100	98	100	100	100	96
30	30	100	100	100	99	100	100	100	98
30	40	100	100	100	100	100	100	100	99
30	60	100	100	100	100	100	100	100	100
30	80	100	100	100	100	100	100	100	100

40	20	100	100	100	99	100	100	100	97
40	30	100	100	100	100	100	100	100	99
40	40	100	100	100	100	100	100	100	100
40	60	100	100	100	100	100	100	100	100
40	80	100	100	100	100	100	100	100	100
40	100	100	100	100	100	100	100	100	100

60	30	100	100	100	100	100	100	100	100
60	40	100	100	100	100	100	100	100	100
60	60	100	100	100	100	100	100	100	100
60	80	100	100	100	100	100	100	100	100
60	100	100	100	100	100	100	100	100	100

100	40	100	100	100	100	100	100	100	100
100	60	100	100	100	100	100	100	100	100
100	80	100	100	100	100	100	100	100	100
100	100	100	100	100	100	100	100	100	100

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

Lighting Fixtures - Panel will sometimes require additional cutting for proper installation. Louver panels can also be specified with the Avoida-Notch™ optional frame - to specify add suffix-AN50 to the base catalog number. For color designation use B for black, W for white. For specular finish color designation should follow SP (i.e., SPG for gold, SPS for silver).

Lighted Ceilings - Louver panels are designed to fit any standard 1' x 4', 2' x 2' or 2' x 4' tee bar grid system.

Special Sizes - Special sizes are available, contact A.L.P.

ZONAL CAVITY COEFFICIENTS OF UTILIZATION

Ceiling Wall RCR	EFFECTIVE FLOOR CAVITY REFLECTANCE = 20
	80				70				50			30			10			00
	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	46
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	% FIXT
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	0.0	0.0
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
VER. ANG.	0.0	22.5	45.0	67.5	90.0	ZONAL LUMENS
0.0	1557	1557	1557	1557	1557
5.0	1551	1560	1562	1583	1579	150
15.0	1518	1573	1612	1616	1624	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

ALP Lighting - Page 14