Photoluminescent Number 4 Sign | UK Health & Safety Sign

What Is a Photoluminescent Number 4 Sign?

The Photoluminescent Number 4 Sign is an essential safety and navigation aid used to indicate Level 4 in buildings, especially in stairwells, lift lobbies, and emergency escape routes. It features a bold, highly visible number “4” on a vertical green background with glow-in-the-dark photoluminescence for maximum legibility.

This sign absorbs ambient light and glows brightly in low-light or blackout conditions, providing vital wayfinding during fire alarms, power failures, or emergency evacuations. It helps building occupants and emergency personnel clearly identify floor levels during stressful or hazardous situations.

Manufactured in the convenient 100×300 mm size and available in both self-adhesive vinyl and 1mm rigid PVC, it suits both new installations and retrofit safety upgrades. Trusted in offices, flats, schools, and healthcare environments across the UK.

🔧 Key Features & Benefits

✅ Glow-in-the-dark photoluminescent surface
✅ Bold vertical “4” for Level 4 identification
✅ Self-adhesive or rigid PVC options
✅ UK fire safety and escape route compliant
✅ Quick to install – no power required

📌 Ideal For

• Fourth floor stairwells and lobbies

• Emergency exits and corridors

• Hotels, flats, and care homes

• Schools, universities, and office buildings

• Hospitals, council buildings, and retail areas

🧠 Summary

The Photoluminescent Number 4 Sign is a glow-in-the-dark floor level indicator that enhances safety on Level 4 of any UK building.

📊 Product Specifications Table

🔗 Additional Useful Links