Types of Track Lighting: H, J, L and Magnetic Track Explained

Track lighting is a row of adjustable lights mounted on a powered rail, so you can aim light at a feature wall, a kitchen counter or a shop display. The type of track decides which heads fit, how the lights are switched and how they are installed. This guide explains each type in plain terms and how to choose one for a Singapore home or shop.

What are the main types of track lighting?

Track lighting is grouped by the rail system and by the light heads. The main rail types are linear track (in the H, J and L standards), fixed rail, swing arm, monorail and extra-low voltage (ELV) magnetic track. Rails can be single circuit or dual circuit. Heads include spotlights, gimbals, pinhole heads and pendants, and they must match the rail.

What is the difference between H, J and L track?

H, J and L are the three best-known North American track standards, named after the manufacturers that set them: Halo (H), Juno (J) and Lightolier (L). The rails look alike, but the contacts differ, so H, J and L rails, heads and connectors are not interchangeable. A J-type head will not fit an H-type rail. In Singapore, also check that any rail, connector and head is rated for 230V mains, whichever standard it follows.

Before you buy a new head for an existing rail, check the brand or type printed on the rail or on an existing head. Some manufacturers sell the same head with different adapters for each track type. For example, Acuity Brands offers adapters for other track types (G, H and L) as standard options on many Juno track fixtures, with restrictions listed on each specification sheet.

Not every track light sold today follows the H, J or L standard. Magnetic tracks and many supplier-specific rails use their own fittings, so the safest approach is to buy the rail, connectors and heads as one system.

Single circuit or dual circuit track: which do you need?

On a single circuit track, every light on the rail switches on and off together. On a dual circuit track, the heads are split into two groups that can be switched separately from the same rail. Choose single circuit for simple rooms and dual circuit when you want feature lighting and general lighting on one track.

A gallery is the classic example. With dual circuit track, you can switch on only the heads aimed at one painting and leave the rest off. At home, the same idea lets you light a feature wall on one switch and the dining table on another. Single and dual circuit rails use different connectors, so buy connectors from the same range as your rail.

What are fixed, swing arm and monorail track lights?

These are alternatives to a long linear track, each with a different way of holding the heads. Fixed rail hangs from a ceiling standoff as a straight or curved bar, and monorail uses a single rail that can be bent into curves.

• Fixed rail: the heads cannot slide along the rail, but each one can still be angled to direct light where you want it.
• Swing arm: like fixed rail, the lights cannot move along a track, but the swinging arms and angled heads give a full range of motion.
• Monorail: both the heads and the shape of the rail are flexible, so the track itself becomes a design feature.

What is magnetic track lighting?

Magnetic track lighting is an extra-low voltage (ELV) system: a slim DC rail, powered by a separate driver, onto which spotlights and pendants attach magnetically. Because the rail carries extra-low voltage DC rather than 230V mains, and each brand uses its own profile, the fittings, connectors and driver must come from the same system and match its voltage, for example 48V.

KSR Lighting's Mag-Trac range is a typical example. Its Mag-Trac data sheet (PDF) lists a 48V DC single circuit track with a maximum load of 3.125A (150W), ceiling or wall mounting, and an inline or remote power supply. The track is rated IP20, which means it is for dry indoor locations only, not bathrooms or outdoors. Its 150W 48V constant voltage driver takes a 220-240V mains input.

Before buying, add up the wattage of all the fittings on a run and keep it within the track rating and below the driver rating, leaving some headroom so the driver does not run at full load. Also plan where the driver will sit: inline with the track, or in a remote spot such as a cabinet that the installer can reach later. Our guide on what an LED driver is explains how to size a constant voltage driver.

What types of track light heads are there?

Track heads hold the light source and direct it. Most are used for spot lighting, wall washing, ambient and accent lighting. Common heads are round back heads, pinhole heads, gimbal heads, step heads and pendants. Most rails accept several head styles, but only heads made for that rail type, so check compatibility before you buy.

• Round back head: a classic cylinder or dome spotlight that tilts and rotates, for general accent lighting.
• Pinhole head: a small aperture that gives a tight, discreet beam, useful for artwork and displays.
• Gimbal head: a ring-mounted lamp that can be aimed in almost any direction.
• Step head: a stepped, layered body, chosen mainly for its look.
• Pendant: hangs from a cord below the rail with a glass or metal shade. It cannot be aimed like a spotlight, but it adds a decorative touch over a kitchen island, dining table or office desk.

Some heads take a replaceable bulb, such as a GU10 lamp, while others have a built-in LED module. Bulb heads let you change the bulb, colour or beam later. With an integrated LED head, the LED is part of the fitting, so if it fails the head is normally replaced rather than the lamp. For replacement lamps, see our GU10 and other LED bulbs.

Can you install track lighting without a false ceiling?

Yes, in most cases. Surface-mounted track is fixed to the ceiling or a wall rather than set into it, so it does not need a false ceiling, and an electrician can usually feed it from an existing ceiling light point. This makes track lighting a practical option for flats and condos with a flat ceiling.

A 230V track connects to the lighting circuit through a live end or feed connector. A magnetic track also needs a place for its driver, either inline with the track or in a remote spot the installer can reach later. Recessed track, set flush into the ceiling, needs a ceiling cavity. Any track that is wired into a ceiling point should be installed by a licensed electrical worker, with the lighting circuit switched off at the distribution board.

How do you choose track lighting for a Singapore home?

Start with the rail, then choose the heads. Decide where the track will run and whether you need one or two switching groups. Pick a system and buy compatible heads and connectors from that range. Then match wattage and colour temperature to the room: warm white for living areas and bedrooms, cooler white for kitchens and work areas.

1. Plan the run. Mark what you want to light (a wall, a counter, a display) and place the rail so the heads can be aimed at it.
2. Choose single or dual circuit. Dual circuit is worth it if you want feature lighting and general lighting on separate switches.
3. Pick the system. A 230V track can usually be fed from an existing light point by an electrician. A magnetic 48V track is slimmer but needs a matched driver and fittings.
4. Choose the wattage. Higher wattage heads give more light per head, so a large space or high ceiling may need higher wattage heads or more of them.
5. Choose the colour temperature. 3000K warm white feels cosy, 4000K cool white (a neutral white) is clear and even, and 6000K white is crisp and bright.

As an example, our LED Track Light HWX Series runs on 230V and comes in 10W, 20W and 30W, in 3000K warm white, 4000K cool white or 6000K white, with a white or black body and a 2-year warranty. Prices start from S$15 for the 10W head (November 2026). Please check rail compatibility with us before ordering: send a photo of your rail and we will confirm whether the head fits. See all options in our track light collection, or compare with downlights if you prefer fixed ceiling lights.

Need help choosing a track system?

Send us a photo of your ceiling or your existing rail and we will help you work out which track type and heads fit. Contact 123 LED Lighting, WhatsApp us at 8793 9683, or visit our store at Sim Lim Tower.

Need help choosing LED lighting for your home or office? Ask our team.