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28" L X 7" W Opening

7" O.C.

51 1/2" L X 10" W

8 3/4"

1 3/4"

Depth

5

1

4

11

8

10

6

3

7

9

FLANGED

TRIMLESS

TOP VIEW

13"

8"

30-1/4"

Cut-out Dims.

Calculite® ProSpec® Linear Downlight 

PB4P3810

Page 1 of 2 

4 Light PAR38  Series B

Job Information 

Type:

Job Name: 

Cat. No.: 

Lamp(s): 

Notes:

 

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.
© 2011 Genlyte Thomas Group LLC (Lightolier Division) • B0711

Features

1.  Aperture Frame:

 Provides clean support for lamp holders and overlapping 

flange or trimless installation. Extruded aluminum. Rigidly welded together 
on all corners.

2.  Media Cartridge:

 Allows convenient loading and removal of up to one 

accessory. Easily installed and removed for lamping with a simple twisting 
motion. Constructed of die-formed aluminum.

3.  Adjustable Ring:

 Allows 360° horizontal and 35°, max. 45° (on length); 40° 

(on width) vertical adjustment.

4.  Tortiontite Spring:

 For easy installation of aperture frame. 

5. Housing:

 Die-formed 22 ga. steel. Finish: Black

6.  Mounting Brackets:

 Adjustable vertically from inside or outside of housing.

7.  Thermal Protector:

 Meets NEC and UL requirements.

8. Lampholder:

 Porcelain medium based; nickel plated screw shell. Prewired 

with #18 SF-1 leads to junction box.

9.  Junction Box:

 14 ga. steel, 4” x 3-1/2” x 2" box. Allows inspection from 

below.

10. Lamp and Accessory Support:

 .032" steel, flared for easy entry of Media 

Cartridge. 

11. Lens Retaining Ring:

 .093" spring steel rod. Holds accessories in place.

Electrical

UL listed for through branch circuit wiring with maximum of (8) no. 12 AWG, 
90°C.

Finish

All painted finishes are powder coated baked enamel.

Ceiling Cutoff: 29 1/16"L X 8 3/16"W

Ordering Information:  PAR38  Series B

Cat. No. 

Lamp   

Ceiling Trim 

Aperture Finish

PB4P3810BL

 

(4) 100W PAR38 

Overlap 

Black with White Flange 

PB4P3810WL 

 

(4) 100W PAR38  

Overlap 

White with White Flange

PB4P3810BTL

 

(4) 100W PAR38 

Trimless 

Black

PB4P3810WTL

 

(4) 100W PAR38 

Trimless 

White

Options and Accessories

Accessories:

 4 3/4" dia. series, filters, lenses, screens, and louvers. (1) max.

Label

UL/cUL (Suitable for Damp Location), I.B.E.W.

PB4P3810BL

 =  (Flanged) Black/White

PB4P3810WL

 =  (Flanged) White

PB4P3810BTL 

=  (Trimless) Black

PB4P3810WTL

 =  (Trimless) White

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