8 1 /4"
A19
8 7 /8"
A21
8 1 /2" Overlap
7 3 /4" Flush
7 7 /16" Dia.
1
2
3
4
5
6
7
8
9
3"
1 1/ 8" min. 1 7/8 " max.
(Ceiling Runner)
1" max .
Ceiling Thickn
ess
4
-
1/4
"
13"
1
11 1/2"
1 1/2"
13"
Flush Trim
White Trim Ring
Top View
Calculite
®
Incandescent Lensed Downlight
7790QD
Page 1 of 2
7 3/8” Aperture A19 / A21 / MB19 Fresnel Lenslite
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.
© 2002 Genlyte Thomas Group LLC (Lightolier Division) • A0902
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
Ceiling Cutout: 7 3/4” Dia.
Catalog Number
Lamp
7790QD
A19
100W max.
MB19
100W max.
A21
150W max.
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.
