So, you’ve decided a custom neon sign is the perfect statement for your space. Now comes the key choice: real glass neon sign or a modern custom LED Neon Sign? This isn’t about one being universally “better”—it’s about which is better for you. This guide breaks down the differences in aesthetics, performance, and practicality, so you can invest with confidence.
The Core Difference: A Tale of Two Technologies
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Real (Traditional) Neon: A skilled artisan hand-bends borosilicate glass tubes, which are then evacuated and filled with noble gases (like neon or argon). A high-voltage transformer electrifies the gas, causing it to emit its characteristic glow.
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LED Neon Flex: Bright LED chips are embedded within a continuous, flexible silicone or PVC jacket. A low-voltage driver powers the LEDs, which shine through the coloured or diffused tubing to replicate the neon look.
Head-to-Head Comparison: Key Factors at a Glance
| Feature | Real Glass & Gas Neon | Modern LED Neon Flex |
|---|---|---|
| Light Quality & Aesthetic | Organic, deep glow with subtle texture & faint flicker. Unmatched depth and “soul.” Classic, authentic vibe. | Bright, even, and consistent colour. Can achieve ultra-vibrant hues. Modern, crisp appearance. |
| Durability & Use | Fragile. Glass can break if struck. Sensitive to extreme temperature shifts. Best for protected indoor use. | Highly durable. Flexible, waterproof, and resilient. Ideal for outdoors, high-traffic areas, or rentals. |
| Energy Efficiency & Heat | Less efficient. Uses a high-voltage transformer that emits noticeable heat. | Very efficient (uses up to 70% less power). Runs cool to the touch, enhancing safety. |
| Customisation & Complexity | Artisanal process; superb for unique, flowing shapes. Colour is tied to gas/phosphors. | Easily cut and shaped. Excels at intricate designs and full RGB colour-changing effects. |
| Installation & Maintenance | Requires professional installation due to high voltage & fragility. | DIY-friendly (low voltage, lightweight). Easier to handle and re-install. |
| Lifespan | Extremely long-lived (10+ years), but tubes can slowly lose gas. | Long lifespan (30,000-50,000+ hours), limited by LED driver longevity. |
| Cost | Higher due to skilled labour, materials, and specialised components. | Generally more cost-effective, especially for complex or multi-colour designs. |
When to Choose Real Glass & Gas Neon:
Choose this path if your priority is authentic craftsmanship and heritage.
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You seek the classic, warm, organic glow that defines “true neon.”
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Your project is a centrepiece art installation for a stable, indoor environment.
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You value the story of hand-blown glass and traditional technique as part of the product’s worth.
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You desire specific traditional colours, like the iconic neon red or argon blue.
When to Choose LED Neon Flex:
Choose this path if your priority is versatility, durability, and modern functionality.
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You need a sign for outdoor use, a business window, or a high-touch area.
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Budget, safety, and energy efficiency are key considerations.
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You want dynamic colour changes, complex logos, or a very intricate design.
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You’re a renter or may need to move and re-install the sign easily.
Bridging the Gap: The Hybrid Question
Some makers offer “hybrid” signs, using real neon for key elements and LED for others, though this is less common. A more practical approach is to choose the technology that best fits 95% of your needs.
Making Your Decision: Final Checklist
Answer these questions:
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Where is it going? (Indoor/outdoor, bedroom/bar facade)
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What’s the vibe? (Classic vintage vs. modern vibrant)
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What’s my budget? (Including potential professional installation)
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Is it a permanent fixture or might it move?
The Bottom Line
Both real and LED neon create stunning illumination. Real neon is an artisanal craft product with an irreplaceable glow. LED neon is an innovative, adaptable solution that has democratised the aesthetic.
By understanding their inherent strengths, you can move beyond the dilemma and make a choice that ensures your sign isn’t just a purchase, but a perfect fit.
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At Smithers of Shoreditch, we craft both authentic real gas neon and cutting-edge LED neon signs. Our experts can help you navigate this choice based on your specific project. Discuss your idea with us for honest, tailored advice.

