Waterproof outdoor LED neon IP65 made to measure
Professional signage that stands up to every season and façade décor built to last: a neon designed, sealed and guaranteed for life outdoors. Driving rain, frost, UV, condensation, your neon holds firm.
- 3D mock-up within 24 h
- Delivered in 7 days
- 3-year warranty
- Certified IP65 waterproofing

Why not every LED neon survives outdoors
Many LED neons sold as "outdoor" are actually indoor models coated in a thin layer of silicone. Fitted on an exposed façade, they fail within a few months.
Four enemies attack a waterproof outdoor LED neon every day. Driving rain seeps in through poorly sealed joints and connectors. UV rays bleach low-grade silicone and make it brittle within two years. Frost expands micro-pores and cracks the junctions. Condensation, more insidious still, settles inside the tube and clouds the light.
A true outdoor neon is not a product, it is an assembly: monobloc silicone tube, remote IP65 power supply, heat-sealed connectors, ventilated acrylic mount. At Helioneon, every link in the chain is validated for outdoor use. Not an IP sticker stuck on an indoor product.




They trust us for their outdoor signs
The IP rating that changes everything: certified IP65
The IP rating, defined by the IEC 60529 standard, measures how well an electrical product is protected against dust and water. The higher the second digit, the stronger the water protection. For a neon that lives outdoors, it is the only indicator that matters.
IP65 is the standard we apply to every outdoor neon we make. In practical terms: total dust protection, and full resistance to water jets in every form (driving rain, high-pressure washing, sea spray, garden splash). It is the right level for 100% of professional signage projects, shop façades, restaurant terraces, residential gardens and outdoor events.
Helioneon indoor neons
All our standard indoor neons are IP44 protected: enough for a ventilated bathroom, kitchen, changing room or any dry to moderately humid interior. No surcharge, no option to tick.
Helioneon outdoor neons
Our outdoor version steps up to certified IP65: water jets, driving rain, frost, UV, weather from the north-east as much as the coast. Waterproofing certificate supplied with every outdoor order.
No IP67 or IP68 in our catalogue, and that is not a gap: those ratings only make sense for fully submerged products (fountains, permanently filled pools). For everything else, IP65 is the only relevant level, and it is the one we stand behind on every outdoor neon that leaves our workshop.
Uses for a waterproof outdoor LED neon
An IP65 rating opens up settings no indoor neon can handle. Here are the projects our customers order most.
Restaurant and terrace bar signage
Logo, name or slogan on the façade or hung over the terrace. Long-range visibility, instant atmosphere, strong identity. See our restaurant neon or bar neon page.
Shop front and window display
Permanent illuminated signage exposed to rain and sun. Our IP65 replaces traditional light boxes with a more modern graphic signature. Details on the retail neon page.
Garden and residential terrace
A quote, the house name, a pergola outline, pathway signage. The neon survives storms and north-eastern winters with no visible change.
Outdoor events and festivals
Outdoor wedding, festival, trade show under a marquee. The neon goes out, comes back, goes out again, with no degradation. Hire or buy depending on your needs.
Swimming pool and pool house
Pool edge outline, pool house wall, outdoor décor near water. Our IP65 standard handles splashes, spray and poolside mist without issue.
Architecture and agency projects
Façade cladding, office signage, open lobby. We work hand in hand with architects and design offices through our business neon offer.




How Helioneon guarantees IP65 waterproofing
IP65 is not declared, it is built. Here are the four waterproofing engineering steps that set our custom neon signs for outdoor use apart. To go further, read our installation guide.
Food-grade high-density silicone, extruded in a single piece, with no seam or glue. No weak point where water can seep in. UV resistance tested for 100,000 hours with no colour shift.
Each end is closed with a laser-welded silicone cap, not glued. A process drawn from the aerospace industry and adapted for signage. Waterproofing validated at the factory on 100% of units.
Threaded connectors with O-ring seals, no terminal blocks or Wago connectors. The cable exits the neon through a cable gland, never through a cut made with a knife. IP65 rating maintained all the way to the power supply housing.
A 12V or 24V IP65 waterproof power supply is always included, never an indoor PSU "to protect yourself". Aluminium housing withstands thermal shock from -25 °C to +50 °C. 3-year parts warranty, identical to the neon.
Pricing and lead times for a custom outdoor neon
The ranges below reflect real projects delivered in 2025-2026, excluding installation. Firm quote within 24 hours after you send the brief or vector logo.
Small professional signage
200 - 500 €Bar logo, shop name, short outdoor word. Lead time 7 to 10 days.
- 40 to 80 cm wide
- IP65 silicone tube
- IP65 PSU and connectors
- 3-year warranty
Restaurant façade, retail window
500 - 1 500 €Complete outdoor sign, terrace signage. Lead time 7 to 10 days.
- 80 to 180 cm wide
- Multi-colour available
- Clear acrylic backing
- Installation by a fitter recommended
Architectural project, large format
1 500 - 3 000 €+Façade cladding, hospitality project, recurring events. Lead time 7 to 10 days.
- 180 cm and above
- Dedicated technical study
- Work with architects
- Extended warranty available
Want to compare with other formats? The custom neon page details our full range, indoor and outdoor. For a specific project, request a quote.
Helioneon outdoor guarantees
The outdoors are demanding, and so are our commitments. Three written guarantees, not marketing fluff, that apply to every IP65 order.
If the waterproofing fails, we replace the faulty neon free of charge, parts and labour included for the full term, not just the first year. Terms on the 3-year warranty page.
Workshop in the United Kingdom, English-speaking technical team, returns handled within 5 working days. No offshored hotline.
A documented waterproofing fault (photos, video) triggers a full replacement with no excess. That is our commitment, not a commercial gesture.
Helioneon standard validated on 100% of outdoor units, PSU and connectors included. A tested waterproofing chain, not a stuck-on IP sticker.
Outdoor technical FAQ
The questions our trade and private customers ask before every quote. If yours is not listed, send it via the form and we will reply within 24 hours.
Your outdoor project deserves genuine IP65, not a sticker
Send us your brief, your logo or your idea. Firm quote within 24 hours, 3D prototype included, handcrafted to order, signed 3-year warranty.