Installation Guide
 Installation Instructions
 TWH-LED
 Part Number: RJ521353 REV B
 Revision Date: 4-3-18
Lithonia Lighting Outdoor • One Lithonia Way • Conyers, Georgia 30012
Phone: 800-279-8041 • Fax: 770.918.1209 • www.lithonia.com
© 2011 Acuity Brands Lighting, Inc. All rights reserved. 11/12
Condulet Tee mounting:
1. Loosen the 2 captive screws in the front housing and remove front cover 
from fixture.
2. Remove electrical splice compartment cover. Keep (2) 10-24 screws for 
reinstallation. See Figure A.
3. Remove top conduit cover disc. See Figure C.
4. Mount fixture using dimensions shown in Figure B. Thread conduit into 
fixture.
5. Make supply connections. Reinstall electrical splice compartment cover 
with (2) 10-24 screws removed in step 2, making sure no wires are pinched.
6. Replace front cover.
7. Tighten the 2 captive screws. Do not over tighten. Over tightening will 
cause stripping and void all warranties.
VG - Vandal Guard:
1. Position polycarbonate vandal guard over prismatic glass lens. Each side 
of the vandal guard should have an attachment screw that matches up with a 
mounting hole predrilled in the fixture front housing. 
2. Thread each attachment screw into the appropriate mounting hole and 
tighten securely.
WG - Wire Guard:
1. Position wire guard over prismatic glass lens. Each side of the wire guard 
should have an attachment screw that matches up with a mounting hole 
predrilled in the fixture front housing. 
2. Thread each attachment screw into the appropriate mounting hole and 
tighten securely.
Troubleshooting:  If this xture fails to operate properly, check to make sure: • The xture is wired correctly. • The xture is 
grounded correctly. • The line voltage at the xture is correct. If all these variables have been checked and the xture still 
does not operate as specified, contact your local Lithonia Lighting distributor.
Figure C
Conduit cover disc




