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This quantity of boards will cover up to sq ft

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Key Features

  • Discreet lighting that looks great by day and brilliant by night
  • A wide range of size options to fit nearly any post
  • Creates safe footpaths for guests of all ages
  • Dimmable
  • Easy plug-and-play installation - no wiring required!
  • Durable, low-maintenance vinyl material

Extend the usable hours of your deck with a brilliantly lighted post cap from LMT Mercer. Give your deck an appealing style by day and enjoy a late-night glass of wine in the warm glow of your lights at night. These high-quality, low-maintenance post caps make it easier to enjoy your deck!

What Lighting Type Do I Need?

  • The Downward cap features lighting that projects downwards onto your deck surface for more focused illumination in a smaller area.
  • The Halo style cap features a ring of light that projects outwards to illuminate more space.
  • The Combination style cap features both the downward and halo lights to maximize your illumination. It also comes with a plug-and-play splitter for easy installation.

Note: the Combination cap is the only cap that comes with a two-way splitter included. For the other caps, you'll need to purchase a splitter separately if needed.

Kit Includes

The Halo and Downward style post cap kits include:
  • Post cap with 9-inch wire lead
  • Installation instructions

The Combination style post cap kit includes:
  • Post cap with 9-inch wire lead
  • Installation instructions
  • 2-way splitter

Compatible Lighting System

How to choose the right size

Check out our Post Cap Diagram. Choose a post cap with an opening size slightly larger than your posts or post sleeves.

DecksDirect # 6617

LMT LED Post Cap Light Installation Instructions (423 KB) 

FinishesBlack, Matte Black, and White
Lighting TypesCombination, Halo, and Downward
Pack SizeEach
Post Cap Opening Size2-1/16 in, 2-9/16 in, 3-1/16 in, 3-9/16, 4-1/16 in, and 4-9/16 in
Voltage12 volts DC
WattageHalo and Downward: 0.8 watts
Combination: 1.6 watts
LumensHalo: 25
Downward: 35
Combination: 60
Transformer TypeDC

Compatible Transformers

12 Watt LED DC Transformer By LMT Mercer
50 Watt LED DC Transformer By LMT Mercer
(This manufacturer offers a warranty on their lights when used in conjunction with LMT Transformers)
Compatible DimmersLow Voltage LED Dimmer by LMT Mercer
Material TypeVinyl
BulbIntegrated LED
Color Temperature Warm white (3000 Kelvin)
(width x depth x height)
2-1/16 in: 3-1/16 in x 3-1/16 in x 1-1/2 in (1-1/8 in for Downward)
2-9/16 in: n/a
3-1/16 in: n/a
3-9/16 in: n/a
4-1/16 in: n/a
4-9/16 in: n/a
Inset Measurement1/2 in
Wire Leads9 in harness
Package ContentsHalo and Downward: (1) light, installation instructions

Combination: (1) light, (1) 2-way splitter, installation instructions
Illumination Arean/a
WarrantyView LMT Warranty Information
Questions & Answers