Lightolier specifications Calculite Incandescent Lensed Downlight 7790QD, Page 1 of, Type

Calculite® Incandescent Lensed Downlight 7790QD

Page 1 of 2

	1
	4
8 7 /8"	9
	3
A21	2
	8 1 /4"
	A19
	3"

7 3/8” Aperture A19 / A21 / MB19 Fresnel Lenslite

13"
4	-1/4"

111 1/2"1 1/2"

5 13"

Top View

6

1 1/ 8" min. 1 7/8 " max. (Ceiling Runner)

Ceiling Cutout: 7 3/4” Dia.

	7 7 /16" Dia.	7	1" max .
			Ceiling Thickn ess	Flush Trim	White Trim Ring
7 3 /4" Flush	8 1 /2" Overlap	8

￿

Catalog Number

7790QD

Lamp

A19 100W max. MB19 100W max. A21 150W max.

Features

1.Socket Cup: Die-cast aluminum cup effectively dissipates heat and assures lamps maintain proper optical alignment to reflector. Snaps onto reflector neck for easy tool-less installation. Contains medium base porcelain socket, nickel plated screw shell wired with No 18 SF1 leads to J-Box.

2.Mounting Brackets: Adjusts vertically from inside of fixture. Durable

16 ga. steel construction. Use with standard 3/4" or 1/2" lathing channels (by others), 1/2" EMT pipe (by others), or Lightolier accessory mounting bars.

3.Retaining Springs: Torsiontite springs secure bezel reflector housing.

4.Reflector: Specular Alzak® aluminum, 16 ga., reflector housing can be detached from inside of fixture for access to splices after installation.

5.Junction Box: 14 ga. steel, 4" x 3" x 2" box allows inspection from below.

6.Thermal Protector: Meets NEC and UL requirements. Insulation must be kept 3" away from fixture sides and wiring compartments and must not be placed above fixture in a manner which will entrap heat.

7.Trim Frame: Die-cast aluminum suitable for dry or plaster ceilings. Flanges for dry ceilings, reversible flangeless trim for use in plaster ceilings. Matte white baked enamel finish.

8.Bezel: Die-cast aluminum bezel forms deep attractive conical aperture. Matte white baked enamel finish. Includes black polyurethane foam gasket to provide effective light and dust shield.

9.Lens: 6" diameter gray color louver risers. Regressed 1 1/2" from ceiling line by bezel.

Options & Accessories

18" Mounting Bars	1950	(set of 2)
27" Mounting Bars	1951	(set of 2)
T-Bar Anchor Clips	1956	(set of 4, for 1950 & 1951 bars)
Wood Joist Mtg. Bars	7994	(set of 2)
Step Down Transformer	7997	(see 7997 specification sheet)
Chicago Air Plenum	Consult Factory

Electrical

UL Listed for maximum of 8 No. 12, 75°C through branch circuit supply conduc- tors, or 60°C supply conductors for end of run.

Labels

UL Listed for wet locations, I.B.E.W.

Alzak® is a registered trademark of ALCOA.

Job Information Type:

Job Name:

Cat. No.:

Lamp(s):

Notes:

Lightolier a Genlyte Thomas Companywww.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.

© 2002 Genlyte Thomas Group LLC (Lightolier Division) • A0902