Installation Guide
19
LIGHTING
Spotlight
Wire
Female-to- 
Female 
Adapter
2
TRANSFORMER CAPACITY BY TYPE
Type of Light
8.3A Transformer
(83 DL TRANSFORMER)
Spotlight 12
Above listing is for maximum number of each individual types of lights. 
If mixing and matching lighting, contact Trex to determine if more than 
one transformer is required.
NOTES: 
»   Each Trex Spotlight requires use of a dedicated 
36V Step-up Transformer (included with each Trex 
Spotlight). WARNING: Step-up Transformer DOES
NOT have fault protection, thus care must be taken if 
testing.
»   Spotlights must use a dedicated line running 
directly from the included 36V Step-up Transformer. 
Maximum of 12 spotlights are allowed per one 
8.3 (100W)-amp transformer. (NOTE: Must use 
three multi-zone transformer adapters if installing 
all 12 spotlights to single 5A transformer as multi-
zone transformer adapter is designed for up to five 
spotlights.) Spotlights have a male lead and require 
the use of a female-to-female adaptor to connect 
spotlight to connector wire. The spotlight fixture has 
a male lead. Install the extension cable accordingly.
DO NOT mix any other lights on the spotlight circuit. 
Applying 36V to any other fixture types will result in 
very short diode life and will void warranty. 
»   DO NOT LOOK DIRECTLY INTO SPOTLIGHT 
WHEN ON. THIS LIGHT IS VERY BRIGHT.
1.   Locate placement of spotlights and lead wiring. 
Plan accordingly if you choose to bury wire under 
concrete or other 
permanent structures.
2.   Connect male lead from 
light to female to one 
end of female adaptor.
3.   Connect opposite end of female adaptor to male 
connector wire. Choose appropriate length wire 
based on your needs. Run all wire on the surface 
back to the location of the power supply. 
4.   Connect opposite end of male connector wire cable 
to female end on Step-up Transformer. If using more 
than one spotlight, use multi-zone transformer 
adapter on Step-up Transformer, making sure 
that each spotlight is utilizing its own 36V Step-up 
Transformer. Wire the Step-up Transformer or 
multi-zone transformer adapter to the 8.3A (100W) 
main transformer.
5.    If using an optional dimmer (recommended), 
simply place the dimmer between the multi-zone 
transformer adapter and main transformer. 
6.    Test lights to ensure power supply, connections, 
and light fixtures all work 
properly and placement 
is appropriate.
7.    Ensure that all unused 
connections on multi-
zone transformer 
adapter are covered 
using weather-resistant 
silicone.
HOW TO INSTALL TREX LANDSCAPELIGHTING/CONTINUED
(TREX SPOTLIGHT)
4
Connector 
Wire
Multi-zone 
Transformer
 Adapter 
To Multi-zone 
Transformer Adapter 
Step-up
Transformer
5 Step-up
Transformers
3
Female-to-
Female 
Adapter
Male 
Connector 
Wire
5
Multi-zone 
Transformer Adapter 
5 Step-Up 
Transformers
Dimmer
To Main 
Transformer
7










