Neon tube

A neon light tube is chosen on three measurements: the length of the existing fixture, the tube diameter and the type of base. The LED tube replaces the fluorescent in most setups, provided you know whether the ballast and starter stay in the circuit.

What is the difference between a neon tube and an LED tube?

The fluorescent tube contains a gas excited by a ballast and starts via a starter: it warms up before reaching full brightness. The LED neon light tube uses diodes, lights instantly, uses less power and often keeps the same format. The real criterion for choosing remains the host fixture, not the marketing promise.

The LED neon, immediate light

No flickering on start-up, no warm-up: the LED neon tube reaches its brightness as soon as it is switched on, which changes everything in a hallway or garage where people pass often. It comes in several colour temperatures, from warm white around 3000 K to cool white towards 6000 K, to suit the room. The opal diffuser softens the light and limits glare on a worktop. It is the simplest way to switch to an LED tube without changing the fixture.

The fluorescent tube, a ballast and a starter

The fluorescent tube remains very common in kitchens, garages and utility rooms. Its ballast provides the starting voltage, the starter strikes the arc, then the tube takes a few seconds to stabilise. This setup handles cold poorly, cannot be dimmed on simple versions and wears out with age. Many installers replace it only when the tube flickers or blackens at the ends.

Before ordering, look at the fixture rather than the tube label: a new LED model is not fitted the same way depending on the supply in place. The rest of the catalogue can be found in all our light fixtures.

Which neon tube length to choose: 30, 60, 90, 120 or 150 cm?

The length is chosen according to the area to be lit and the length of the existing fixture. A 30 to 60 cm tube is enough under a cabinet or in a hallway; 90 and 120 cm cover a kitchen or a garage; 150 cm lights long runs such as a workshop. Measure the distance between the sockets before ordering.

120 cm neon tube: kitchen, garage, workshop

The 120 cm neon tube is the format most often found above a worktop or a bench, because it covers the length of a standard cabinet. A 120 cm LED tube then replaces the fluorescent without changing any habits. For a large room or a workshop, the 150 cm LED neon and 150 cm LED tubes avoid multiplying light points. The LED neon for kitchen is usually fitted under wall cabinets.

30 and 60 cm neon tubes for small spaces

A 30 cm neon tube lights a cupboard, a narrow hallway or the inside of a low cabinet. The 60 cm suits a bathroom mirror or a fixed workstation. The 90 cm neon tube makes the transition to work rooms. Length is not enough: the diameter and base must match the sockets, otherwise the tube will not clip in.

What is the difference between a T5 neon and a T8 neon?

The T8 measures about 26 mm in diameter and fits a G13 base: it is the most widespread tube in starter fixtures. The T5, thinner, around 16 mm, uses a G5 base and is mainly found in compact batten fittings. Both exist in LED versions.

The T8, the tube most often replaced

With its G13 base, the T8 neon is fitted to most linear ceiling lights in kitchens, garages and utility rooms. Its diameter makes it visible but sturdy, and the pins engage with a quarter turn. It is the format people turn to when they simply want to replace a tired tube.

The T5, thinner, often in a batten

The T5 neon, with its G5 base and closer pins, fits into slim battens and shallow housings. It lights without taking up space and suits display cases as well as low kitchen cabinets. A tube is never chosen without looking at its sockets: the range of LED tubes follows these two standards.

How to replace a neon tube with an LED tube?

Cut the power, remove the old tube by turning it, then check the type of supply in the fixture. A ballast-compatible LED tube fits as is; otherwise you need a direct-supply LED tube, removing the starter and ballast. If in doubt, have the wiring checked by an electrician.

Changing a neon tube with an integrated ballast

On a fixture with an integrated ballast, the tube is removed with a quarter turn, without touching the ballast. The replacement then depends on the tube chosen: ballast-compatible, it takes its place directly; direct-supply, the ballast must be removed or bypassed and the mains reaches the sockets. Always check compatibility before ordering a model, and have a waterproof LED tube fitted if the fixture is in a damp room.

Wiring an LED neon without a starter

The direct-supply LED tube needs no starter: it is removed, like the ballast, and the circuit starts again from the sockets. This operation involves 230 V and requires switching off the breaker, not just the switch. If you are not sure about the setup, an electrician settles it in a few minutes, and it is often faster than guessing.

Can a neon work without a starter?

A classic fluorescent tube needs a starter to strike the arc, except on electronic ballast setups that integrate it. An LED neon tube, for its part, uses neither starter nor ballast in its direct-supply version: the starter must then be removed or neutralised depending on the fixture.

Where is the starter in a neon?

The starter is a small cylinder housed in the fixture, near one of the sockets, sometimes under a cover. It unscrews with a quarter turn. On electronic ballast setups, there is no separate starter: it is integrated into the ballast. Cut the power before any handling, this is the one step that is not negotiable.

Why is the LED neon not working?

The most common causes: a tube not properly engaged in its sockets, wiring that still assumes the ballast when the tube is direct-supply, or a fixture with no power. Check the fitting and the base first, then the supply. A persistent fault calls for a check by an electrician, not a remote diagnosis.

Which neon tube for a kitchen, a bathroom or a garage?

In a kitchen, an under-cabinet tube or a linear batten lights the worktop without shadow. In a bathroom and in a garage, moisture and dust require a waterproof tube, with a suitable protection rating. Outdoors, only a model designed for damp conditions lasts over time.

A neon for the bathroom, yes but waterproof

Steam and splashes decide the model. A closed bathroom neon, or a glass tube wall light placed out of reach of splashes, avoids unpleasant surprises. The protection rating must match the moisture in the room, and the distance to water points must be respected. Bathroom neons are chosen on this criterion before length.

LED neon for garage and outdoors

In a garage, the LED neon tube is fitted to the ceiling, in line with the bench, with a solid fixing and a dust-resistant model. Garage lighting benefits from staying neutral, around 4000 K, to distinguish colours under the bonnet. For a workshop, a LED tube for workshop in a long length covers the bench in one piece. Outside, outdoor LED tubes are used to light a covered terrace, never in an open setup. In the kitchen, the worktop lighting is adjusted to avoid reflection on stainless steel.

How to match a decorative neon tube in an interior?

The decorative neon is placed in a line: under a shelf, along a wall, behind a headboard. A glass wall light with an exposed tube plays on transparency, a tube pendant structures the height, a tube spotlight lights a detail. Stick to a single colour family per room.

Glass tube wall light: transparency as a pattern

The glass tube wall light shows its source: the glass lets the light through and the tube becomes a vertical line on the wall. It suits a hallway, an entrance or a bedside, provided you accept direct light. The tube pendant plays the same card above a table or an island, with an adjustable height.

Decorative neon: one line, one colour per room

A tube spotlight highlights a niche or a painting; its black tube spotlight version disappears on a dark wall. The tube floor lamp brings the same writing to the floor, without drilling. On colour temperature, a warm white around 2700 to 3000 K warms a living room, a neutral white towards 4000 K suits an office. Mixing two temperatures in the same room breaks the effect, whereas a single well-placed line is enough. The rest of the Designix catalogue follows the same logic.

How to install and maintain a neon tube without damaging it?

A tube is fixed by its sockets, in a fixture designed for its length and base; a batten is screwed to the support. Always cut the power before fitting it. For maintenance, a dry cloth is enough: water and abrasive products damage the diffuser and the contacts.

Fitting a tube in its sockets without breaking the pins

Present the tube aligned with the two sockets, push the pins fully in, then turn a quarter turn until it locks. Never force: a bent pin straightens poorly and the contact becomes unreliable. For a batten, first screw the support to the wall or cabinet, then clip the tube in. A tube too long for the fixture is fitted at an angle and breaks.

Cleaning a neon tube and its diffuser

Cut the power, let it cool, then wipe the diffuser with a dry or slightly damp cloth. Avoid abrasive products and water sprayed on the sockets. A tube that blackens at the ends or flickers on start-up is replaced rather than cleaned. Cleaning every six months is enough in a kitchen, less often in a hallway.

Reassurance and ordering

At Designix, payment is secure, delivery is tracked and returns are provided for if the model does not match your fixture. Customer service answers questions about base and length before ordering. Have the measurement of your old tube and the type of supply to hand, these are the two pieces of information that avoid a return trip.

Frequently asked questions