21 products
LMT Mercer Group LMT Low Voltage Lighting Ornamental Halo LED Low Voltage Post Cap Light for Key-Link, Trex & Deckorators | LMT
LMT Mercer Group LMT Low Voltage Lighting Ornamental Halo LED Low Voltage Post Cap Light for Key-Link, Trex & Deckorators | LMT
Textured Black Textured Bronze
Ornamental Halo LED Low Voltage Post Cap Light for Key-Link, Trex & Deckorators | LMT
from $40.37
Keylink Placid Point Lighting Textured Black / 2-1/2" Decorative Post Cap Light | Placid Point Lighting
Keylink Placid Point Lighting Decorative Post Cap Light | Placid Point Lighting
Textured Black Textured Bronze Matte White Matte Black +2
Decorative Post Cap Light | Placid Point Lighting
from $87.12
LMT Mercer Group LMT Low Voltage Lighting Ornamental Low Voltage Downward Lighted Post Cap | LMT
LMT Mercer Group LMT Low Voltage Lighting Ornamental Low Voltage Downward Lighted Post Cap | LMT
Textured Black Textured Bronze
Ornamental Low Voltage Downward Lighted Post Cap | LMT
from $40.37
Keylink Placid Point Lighting Decorative Post Cap Downlighting | Placid Point Lighting
Textured Black Textured Bronze Matte White Matte Black +2
Decorative Post Cap Downlighting | Placid Point Lighting
from $87.12
LMT Mercer Group LMT Solar Lighting Ornamental Solar Deck Post Light for Key-Link, Trex & Deckorators | LMT Mercer Group
LMT Mercer Group LMT Solar Lighting Ornamental Solar Deck Post Light for Key-Link, Trex & Deckorators | LMT Mercer Group
Textured Black Textured Bronze
Ornamental Solar Deck Post Light for Key-Link, Trex & Deckorators | LMT Mercer Group
from $63.38
LMT Mercer Group LMT Low Voltage Lighting Low Voltage Ornamental Halo/Downlight Combo LED Post Cap | LMT Mercer
LMT Mercer Group LMT Low Voltage Lighting Low Voltage Ornamental Halo/Downlight Combo LED Post Cap | LMT Mercer
Textured Black Textured Bronze
Low Voltage Ornamental Halo/Downlight Combo LED Post Cap | LMT Mercer
from $68.12
LMT Mercer Group LMT Low Voltage Lighting Recessed Deck Light with Flush Mount Trim | LMT
LMT Mercer Group LMT Low Voltage Lighting Recessed Deck Light with Flush Mount Trim | LMT
Recessed Deck Light with Flush Mount Trim | LMT
from $6.78
Keylink Placid Point Lighting Textured Black Post and Stair Accent Light | Placid Point Lighting
Textured Black Textured Bronze Matte White Matte Black +2
Post and Stair Accent Light | Placid Point Lighting
$35.81
LMT Mercer Group LMT Low Voltage Lighting LED Step Light for Deck Riser | LMT
LMT Mercer Group LMT Low Voltage Lighting LED Step Light for Deck Riser | LMT
LED Step Light for Deck Riser | LMT
from $12.32
LMT Mercer Group LMT Low Voltage Wire Harness 2 way LMT Low Voltage Splitter Harness
LMT Mercer Group LMT Low Voltage Wire Harness 5 way LMT Low Voltage Splitter Harness
LMT Low Voltage Splitter Harness
from $5.18
LMT Mercer Group LMT Low Voltage Wire Harness LMT Low Voltage Wiring Harness | LMT Mercer Group
LMT Low Voltage Wiring Harness | LMT Mercer Group
from $4.34
Keylink Placid Point Lighting Textured Black / 60w Placid Point Lighting Power Supply & Control Hub
Textured Black Textured White Textured Bronze Matte Black +3
Placid Point Lighting Power Supply & Control Hub
from $301.16
LMT Mercer Group LMT Low Voltage Lighting LMT Post & Rail Wire Kit
LMT Mercer Group LMT Low Voltage Lighting LMT Post & Rail Wire Kit
LMT Post & Rail Wire Kit
$20.34
LMT Mercer Group LMT Low Voltage Lighting 92" LED Under Rail Deck Lighting (Trimmable) | LMT
LMT Mercer Group LMT Low Voltage Lighting 92" LED Under Rail Deck Lighting (Trimmable) | LMT
92" LED Under Rail Deck Lighting (Trimmable) | LMT
from $62.82
Keylink Placid Point Lighting Extension Wire for Placid Point Lighting
Extension Wire for Placid Point Lighting
from $11.58
Keylink Placid Point Lighting Wire Splitter | Placid Point Lighting
Wire Splitter | Placid Point Lighting
from $21.65
Keylink Placid Point Lighting Post Light Wire Kit | Placid Point Lighting
Post Light Wire Kit | Placid Point Lighting
$84.05
Keylink Placid Point Lighting Pyramid Post Cap Light | Placid Point Lighting
Textured Black Textured Bronze Matte White Matte Black +2
Pyramid Post Cap Light | Placid Point Lighting
from $90.41
LMT Mercer Group LMT Low Voltage Lighting White / 1 Pack LMT Dome Side Light
LMT Mercer Group LMT Low Voltage Lighting Black / 1 Pack LMT Dome Side Light
Black White
LMT Dome Side Light
from $15.68
LMT Mercer Group LMT Transformer 12 Watt Outdoor Lighting Transformer | LMT
12 Watt Outdoor Lighting Transformer | LMT
$55.65

Deck Lighting Collection for Railings and Outdoor Spaces

Written by Jonathon Sims. Last updated 2025-09-20.

Light changes how a deck works at night. This collection features low voltage and solar options from LMT Mercer and Placid Point Lighting by Keylink. Run deck and landscape lights on one smart transformer and control them with Amazon or Google devices.

LMT Mercer low voltage and solar lighting

Reliable fixtures and simple wiring for a clean, proven setup.

LMT Mercer makes deck, fence, and landscape lighting, so one smart transformer can power the whole project. Use quick connect waterproof harnesses for fast installs and steady performance. Post cap options include halo caps that project light outward, downward caps that wash light onto the post and deck surface, and combo caps that do both. Low voltage caps provide bright, consistent light. Solar caps install where wiring is hard to reach.

We stock 2-1/2″ and 3-1/4″ caps to fit aluminum posts from Keylink, Deckorators, and Trex. LMT offers caps for many other post sizes, and we can order what you need direct from LMT. Pair the system with an LMT smart transformer to schedule, dim, and automate your deck and landscape lights from one hub.

Shop LMT Mercer deck and landscape lighting

Placid Point Lighting by Keylink

Purpose built to match Keylink aluminum railings.

Placid Point fixtures use durable die cast aluminum with a quality powder coat. Options include post cap lights, post and stair accent lights, and under rail lighting. Plug and play connectors let you daisy chain fixtures with tidy, secure connections.

The Placid Point power supply and control hub adds practical features. Set on and off times, use the photocell for dusk to dawn control, and adjust brightness as needed. A short walk away timer keeps lights on briefly as you exit. Lights and electronics include a 5 year limited warranty.

Shop Placid Point Lighting by Keylink

Color and finish options

A coordinated look across rail and lighting.

Placid Point Lighting is offered in colors that match Keylink’s wide range of matte, satin, and coastal finishes, so posts, rails, and lights share the same tone across the project. See Keylink’s options on the Placid Point page.

Get a custom deck lighting quote

We will design your layout, specify parts, and include a clear wiring diagram.

Get a Free Quote

Frequently Asked Questions

Which is better, low voltage or solar deck lighting

Both have a place. Low voltage is brighter and easier to control across large areas. Solar installs fast with no wiring and works well for accent spots.

What is the difference between halo, downward, and combo post caps

Halo glows around the cap edge. Downward shines onto the post and deck surface. Combo provides both effects in one light.

Can these lights stay out all year

Yes. Quality outdoor fixtures handle rain, snow, and temperature swings. Clean them occasionally to keep finishes looking their best.

Can I control deck and landscape lights with Amazon or Google devices

Yes. Use an LMT smart transformer, then set schedules, routines, and voice control for both deck and landscape lights.

Do LMT and Placid Point include a warranty

Yes. LMT Mercer and Placid Point lighting include a 5 year limited warranty on fixtures and electronics.

About the Author: Jonathon Sims helps contractors and homeowners plan and source railing and lighting systems nationwide.