STFU

£499.99Manufacturer RRP

800 shots1.3GF3

800 Shot Long-Duration Compound Cake
Mixed firing design with 16mm and 20mm tubes
1.3G classification with 3856.2g NEC
Part of the Encrypted Fireworks 2026 flagship range

STFU is our 800 shot compound cake, engineered as part of the Encrypted Fireworks 2026 flagship range to deliver extended runtime and continuous sky coverage on a scale rarely seen within consumer fireworks. Built using 16mm and 20mm tubes with a very high NEC load, this compound focuses on sustained firing energy and long-duration visual impact.

We created STFU for customers who want maximum runtime, relentless pace, and uninterrupted performance. The large shot count combined with mixed firing sequences produces a display that remains active for an extended period, making it ideal as a centrepiece firework or as the backbone of a larger display sequence.

Special licence required

This is a 1.3G firework. It needs a higher-tier licence than standard consumer fireworks — we’ll need to see it when you collect.

Reserved online, paid for and collected in store. Over 18s only, photo ID required.

Specification

Brand: Encrypted Fireworks
Product code: ENCRYPT-CF2006
Type: Compound Cakes
Shots / pieces: 800
Tube size: 16/20MM
Firing pattern: Mixed
N.E.C.: 3856.2g
Firework category: F3
Hazard class: 1.3G

Performance and Display Style

STFU is engineered around long-duration firing and continuous sky activity. The mixed firing structure introduces changes in tempo, angle, and effect density, ensuring the display maintains energy throughout its extended runtime while preventing repetition or visual fatigue.

The 16mm and 20mm calibre combination allows for high shot density and rapid firing sequences, creating a busy sky effect that sustains audience engagement for the full duration. This makes it particularly effective when used alongside larger calibre cakes from our cakes and barrages range to create layered display depth.

With nearly 4kg of NEC and an extreme shot count, STFU delivers long-form compound performance with relentless firing intensity, making it suitable for customers seeking maximum runtime and spectacle within the F3 category.

Safety and Handling

Safety is a fundamental part of our design process. STFU is classified as 1.3G and is intended for outdoor use only in large open areas suitable for F3 fireworks. Always follow UK fireworks safety guidance before use.

Why Choose Encrypted Fireworks

We design large-format compounds to perform reliably under real display conditions. Our focus is on consistent ignition, structured pacing, and extended runtime engineering, ensuring every sequence delivers predictable results from start to finish.

No Interruptions

STFU delivers exactly what it promises — long-duration compound dominance with relentless firing pace. With 800 shots and an extended runtime profile, it creates a display that remains active, immersive, and visually intense from ignition through to the final sequence.