21 LED Neon Sign

Delivered in 7–14 days.

Size

Width

Width slider

Height follows the width

Indoor / Outdoor Guide

Colour

Colour Guide

Power adapter

Mounting Options

Mounting Guide

Silver wall mounting kit: stand-offs with screws and wall plugs

Wall mounting kit Stand-offs, screws and wall plugs. Choose silver, black or gold below. Free

Hanging kit: steel hanging wires with fittings

Hanging wire kit Steel wires and fittings to hang the sign. +$10 3M double-sided sticky tape roll

3M double-sided sticky tape For smaller, lighter signs on smooth surfaces. +$10

Dimmer, remote & battery pack

Guide

Free dimmer & remote Included with every sign. Free 12V battery pack with DC lead

12V Battery Pack Power your sign without a power point. Requires 8 AA batteries. Estimated runtime: 8–12 hours, depending on your sign’s size and power consumption. +$20

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About this sign

The 21 LED Neon Sign gives a twenty-first-birthday display a simple, clearly defined centrepiece. Large outlined digits combine the curved top of the 2 with the straighter shape of the 1, keeping the composition compact and easy to recognise. The number-only arrangement can sit comfortably within a range of decorative styles.

Use it above a celebration table, beside the main gathering area or as part of a photo backdrop. Select from the sizes and colours listed on this page to suit the intended setting, measuring both digits together before deciding on placement. A restrained background helps the outlines stay readable among nearby decorations. The supplied remote and dimmer provide brightness adjustment. Leave clear space around the upper curve and lower edges so the whole number can be seen from your chosen viewing point. The design lets the milestone speak for itself, offering an uncomplicated piece of illuminated typography for a special birthday.

Choose from the sizes shown on this page.
Remote and dimmer included for brightness adjustment.
Supplied with a power adapter, mounting kit and installation guide.
Includes a two-year warranty and free delivery.

Explore more: celebration neon signs, Valentine's Day neon signs, custom neon sign builder.

Free delivery in 7–14 days Delivered free Australia-wide and worldwide in 7–14 days. Rush orders on request.
Free remote & dimmer included On, off and brightness from across the room. Included with every sign.
2-year warranty 24 months on the electrical components, indoor and outdoor signs.
Ready to hang Pre-drilled clear acrylic backboard. Wall mounting kit is free.

Good to know

In the box: Your sign on a clear acrylic backboard, a 1.5 m clear cord with a power adapter and the plug for your country, the remote & dimmer, and your chosen mounting kit. Electrical approvals are issued against the power-supply model fitted to your sign — ask us and we will confirm them in writing.
Delivery: Free standard delivery. Allow 7–14 days from order to arrival — that includes making your sign. Couriered with signature on delivery.
Indoor or outdoor: Every design can be built either way and looks the same. Indoor is for dry indoor spaces. Choose Outdoor above for anywhere rained on, splashed or permanently humid: it swaps in outdoor-grade neon flex, a waterproof dimmer and an outdoor power supply sized to the sign. The IP67 rating applies to the neon flex, not the whole sign or its plug — ask us and we will confirm the rating for your build in writing.
Warranty: 24-month manufacturer warranty on electrical components when the sign is used as intended. An indoor sign used outdoors or somewhere wet is not covered.
Mounting: Backboards come pre-drilled. The wall mounting kit is free in silver, with black or gold finishes available above; a hanging wire kit or 3M tape can be added too.
Light & power: LED neon flex — lighter and tougher than glass, low energy, rated for 50,000+ hours.
Size & colour: Choose your width and the height follows this design’s proportions. 11 colours to choose from.
Help: Secure checkout. Not sure about a size or where it will go? Ask our team.