Are Trex 24V Riser Lights Wired in Series or Parallel?

Short answer: Trex 24V Oval Riser Lights can be connected fixture-to-fixture in a daisy-chain layout using their male and female plug-and-go connectors. Although the wiring path looks like a series installation, the fixtures are not a true series circuit. Each light operates from the 24V lighting system as a parallel load.

 

Electrician's Tip: Think of the installation as series-style routing with parallel electrical operation. The male/female connectors let the installer move from one riser light to the next without treating the LEDs as series-connected loads. A true series circuit divides voltage across loads; the Trex 24V system is designed to keep the lighting system operating at 24V at each fixture.

 

Why the Trex 24V riser-light wiring can look like a series circuit

The new Trex 24V Oval Riser Lights use male and female plug-and-go connectors. This allows one fixture to connect directly to the next, creating a clean daisy-chain installation along a stair run. Physically, the wiring progresses from light to light, which is why it can look like a series circuit.

 

Trex 24V Oval Riser Lights product page

Electrically, the fixtures should not be described as series-connected loads. Each light is intended to operate from the Trex 24V lighting system. The connector layout provides convenient fixture-to-fixture routing while the lights function as parallel loads rather than dividing the supply voltage from one fixture to the next.

Configuration

What you see

Electrical behavior

Trex 24V Oval Riser Lights

Daisy-chain / fixture-to-fixture routing

Parallel 24V loads

True series circuit

One load follows another

Supply voltage is divided across the loads

 

Installation takeaway

This makes stair-light installation cleaner and easier to understand: the fixtures can be physically linked one after another, while the lighting system remains a 24V parallel system. Use only components intended for the Trex 24V Lighting system and follow Trex's current installation instructions and transformer loading limits.

 

Technical note from Bob Heidenreich, The Deck Store, based on professional electrical experience and field installation knowledge. Always follow the current Trex installation instructions and applicable electrical codes.