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126 CHESTNUT STREET, WARWICK RI 02888    T 401.467.8232    F 401.941.2960    SALES@DAYOLITE.COM    WWW.DAYOLITE.COM    REV071015    

PAGE 1

Ordering Guide 

(choose from the lists below and specify)



MODEL

DISTRIBUTION

SHIELDING

COLOR 

TEMP (CCT)

DELIVERED 

LUMENS

1

SIZE

MOUNTING

FINISH

VOLTAGE

OPTIONS

2

NASL PS

DI

PF

22

U

NASL


PS

DI = Direct/

Indirect

PF = Perforated 

Metal w/Overlay

30 = 3000K 

 

35 = 3500K 



 

40 = 4000K 

 

50 = 5000K



LO = 1800 

(24W, 80LPW) 

 

SO = 2500 



(32W, 80LPW)

Consult 


factory for ad-

ditional lumen 

packages.

22 = 2x2


G = Grid

MG = Mini 

Grid

SG = Slot 



Grid

F = Flanged 

(recessed)

S = Surface

W = White

CC = Custom 

Color

Universal 



120/277

DIM10 = 0-10V Dimming

DIMST = Step Dimming

DIMHL = Dimming Lutron

D A L I = DALI Dimming

D A Y   = Daylight Sensor

O C C  = Occupancy Sensor

E P C   = Emergency Pack

3

E M C  = Emergency Circuit



T C W  = Two Circuit Wiring

New Age

  |

  NASL-PS 2X2

  

LED Luminaire

HOUSING

: Die-formed, 20-gauge, cold rolled steel 

housing. Housing has an access plate on top with two 

7/8" diameter knockouts.



REFLECTOR

: Highly reflective, die-formed steel 

finished in low glare matte baked white enamel. 

Consult factory for High Efficiency Optics (HEO) 

options. 

SHIELDING

: Die-formed, perforated steel shield with a 

white acrylic translucent overlay. Shield is hinged for 

easy access to driver compartment.



LEDS

: LED modules in 30/35/40 & 50K CCT, 80+ CRI 

(90 CRI available). Lumen maintenance minimum L

70

 = 



65,000 hours @ 25 C° ambient temperature. 3 SDCM 

color consistency. Zhaga

TM

 compliant (Book 7). 



ELECTRICAL

: Class 2 AOC electronic driver, 120/277V 

input, PF > 90%, THD < 20 @ 120v. 0-10V dimming 

to 5%. -20C to +50C operating range. <24dB Class A 

sound rating.  0-10V dimming is standard.

MOUNTING

: Standard installation is in an exposed 

inverted T-bar ceiling. Fixtures are supplied with four 

support brackets for additional support to T-bar.



FINISH

: Fixture housing and steel components are 

finished in baked white enamel applied over a five-

stage pretreatment process.  



CERTIFICATION

: Luminaires are cETLus listed 

conforming to UL STD. 1598 and certified to CSA  

STD C22.2 NO. 250.0. Inherently protected; suitable 

for insulated ceilings. Dry loction only. Union Made 

in the United States of America. I.B.E.W. RoHS 

compliant.

Recessed Direct/Indirect



DISTRIBUTION

MOUNTING OPTIONS

Wall


Direct / Indirect

Direct / Indirect

Asymmetric / In

Direct Asymmetric / In

Recessed Direct

Direct


Indirect

Direct / Indirect

Asymmetric / In

Direct / Indirect

Asymmetric / Out

Indirect Perimeter

Indirect Asymmetric / In

Indirect Asymmetric / Out

Suspended

Cable


Y Cable

Stem


Recessed Indirect

Recessed Asymmetric 

Indirect

Recessed Indirect



PD = Pendant

ROT = Rotational

CS = Concealed

EX = Exposed

S = Surface

5"

[127 mm]



24" x 24" Grid O.C.

[609.6 mm x 609.6 mm]

  

1

Delivered Lumens are Standard Ouput (SO) and Low Output (LO) at 80+CRI 4000K CCT. Use the following multiplier to estimate delivered lumens at other CCTs: 3000K = 0.96, 



3500K = 0.98, 5000K = 1.02. Consult factory for 90CRI.  All values nominal. See www.dayolite.com for the list of all Standard Options.

2

0-10V Dimming to 5% is standard on all LED luminaires.  Day-O-Lite will pre-wire driver with +/- dimming leads if DIM10 option is selected. Recommended dimmers include Leviton 



IllumaTech IP7 Series and Philips Sunrise - SR1200ZTUNV. Step Dimming (DIMST) is 40%/100%.  Consult factory for Lutron (DIMHL) options.

Day-O-Lite, a division of SCW Corporation. All rights reserved. The Day-O-Lite logo is a registered trademark of SCW Corporation.  

3

5W Emergency Battery Pack (EPC) is standard. 10W (EPCHP) is available.  To calculate delivered emergency lumens multiple the fixture 



LPW by EPC wattage.  Example:  NASL- PS 2X2 LPW (80) x 5 (Watts) = 400 delivered fixture lumens in emergency mode for 90 min.

126 CHESTNUT STREET, WARWICK RI 02888    T 401.467.8232    F 401.941.2960    SALES@DAYOLITE.COM    WWW.DAYOLITE.COM    REV071015    

PAGE 2


Photometry

COEFFICIENTS OF UTILIZATION–ZONAL CAVITY METHOD

pfc = 0.20

pcc

.8

.7

.5

.3

.1

0

pw

.7 .5 .3 .1 .7 .5 .3 .1 .5 .3 .1 .5 .3 .1 .5 .3 .1 0

RCR

69 69 69 69 68 68 68 68 65 65 65 62 62 62 59 59 59 58

62 59 56 52 61 58 55 51 55 53 50 53 51 48 47 47 47 46

56 50 46 40 54 49 45 40 47 44 39 45 42 38 38 38 38 37

51 44 38 32 49 43 38 32 41 37 32 39 36 31 31 31 31 31

46 38 33 27 45 38 32 27 36 31 26 35 31 26 26 26 26 26

42 34 28 22 41 33 28 22 32 27 22 31 27 22 22 22 22 22

39 30 25 19 38 30 25 19 29 24 19 28 24 19 19 19 19 19

36 27 22 17 35 27 22 17 26 21 17 25 21 17 17 17 17 17

33 25 20 15 32 25 20 15 24 19 15 23 19 15 15 15 15 15

31 23 18 13 30 23 18 13 22 17 13 21 17 13 13 13 13 13

10 29 21 16 12 28 21 16 12 20 16 12 20 16 12 12 12 12 12

New Age


  |  

NASL-PS 2X2

45 



90

4000K CCT 

WATTS: 32 

LUMENS: 2562 

LPW = 80

Optical Distribution: 

100% Direct

NASL-PS-DI-PF-40-SO-22



Grid Ceiling Options

Five-step Universal  

Installation Sequence. 

  

Complete Installation  



Instructions for grid  

and drywall ceiling types  

are available at:  

www.dayolite.com

Drywall Ceiling

Grid Ceiling

Position Fixture

Secure Tie Wire

Connect Power

Close Access Plate

Installation Complete

1.

2.

4.



5.

3.

Mounting Detail



Flange Kit for drywall ceilings included  

with each fixture. Additional kits may be  

purchased separately.

FK-14 for 1x4 

FK-24 for 2x4 

FK-22 for 2x2 

FK-44 for 4x4

1 15/16"


[49.2 mm]

1 3/8"


[34.9 mm]

9/16" Inverted  "T"



M O U N T I N G   “ M G ”

15/16" Inverted “T”



M O U N T I N G   “ G ”

Bolt / Slot Grid



M O U N T I N G   “ S G ”



45°

90°

270°

315°

135°

180°

225°

CANDELA DISTRIBUTION

Vert.

Angle 0

22.5 45 67.5 90

0

677 677 677 677 677



5

690 690 687 682 674



10

714 691 692 689 692



15

679 686 696 677 681



20

684 679 669 670 649



25

665 668 660 664 663



30

656 655 651 646 634



35

612 617 633 614 606



40

580 576 596 591 582



45

528 541 556 556 551



50

486 497 510 523 520



55

434 448 467 487 487



60

381 397 427 446 450



65

320 345 379 409 417



70

267 289 329 369 380



75

212 228 272 324 342



80

156 159 196 249 264



85

83

79



97 109 110

90

19

19



25

31

30



Day-O-Lite reserves the right to change specifications without notice for product improvement.


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