Thermonuclear Battery 25shot 38mm F3 SRPyro CLE4319

Thermonuclear 25s 38mm CLE4319 F3 – firework cake 25 shots 38mm

The Thermonuclear 25s 38mm CLE4319 F3 is a standout, high-calibre firework cake crafted by SRPyro for those seeking maximum visual impact in any fireworks display. Featuring 25 powerful shots with an impressive 38 mm (1.5”) bore, it delivers bold, widespread effects that are easily visible even from a distance. Classified as F3, this fireworks battery is designed for adult users and is ideal as the centrepiece for New Year’s Eve, outdoor celebrations, private shows, or spectacular event finales.

Each shot in the Thermonuclear 25s 38mm is built for intensity, producing dynamic and elegant bursts that combine golden-silver willow effects with vivid red and green tips and shimmering brocade. With a significant NEC of 975 g, this is not a background firework but a commanding highlight of any multi-shot fireworks sequence or as a standalone display. The duration of approximately 50–60 seconds provides just the right length for a captivating, yet well-paced, show.

If you are looking to add impactful and visually stunning fireworks to your set, you can explore more firework cakes in our range, including different calibres and effect combinations suited for various events. To compare the technical details and real-world performance of leading models in one place, refer to our Best Firework Cakes 2026 guide.

Key specifications of Thermonuclear 25s 38mm CLE4319 F3

• Number of shots: 25
• Calibre: 38 mm (1.5”)
• Manufacturer: SRPyro
• Category: F3
• NEC: 975 g
• Approximate duration: 50–60 seconds
• Product code: CLE4319 / 6942037743199
• Effect height: up to 40 metres

What effects does Thermonuclear 25s 38mm produce?

Thermonuclear 25s 38mm CLE4319 fires a sequence of wide, elegant bursts featuring gold and silver willow effects. These are artistically finished with vibrant red and green tips, enriched by sparkling brocade for additional visual brilliance. The show is consistent and powerful, designed for broad, crowd-pleasing displays with a modern and refined look. Its burst height of around 40 metres ensures visibility and impact in open spaces, whether as a primary display or as a key feature in a combination show.

What should you consider when choosing this firework cake?

The large 38 mm calibre and high NEC ensure that every shot delivers maximum effect coverage and visual clarity, making this cake noticeably more impressive than smaller, lower-powered alternatives. As an F3-category product, it should be handled by adults with respect for safety guidelines and used only in open outdoor areas. The 25-shot count is well balanced, giving a dynamic presentation without excessive duration or repetition. Its striking effects and high power make it suitable as a main attraction or for augmenting a multi-cake display with a bold finale.

When is Thermonuclear 25s 38mm a good choice?

Choose Thermonuclear 25s 38mm if you want a fireworks battery that delivers strong, elegant willow effects and vibrant colour tips for large audiences or special events. Its specification and visual style make it particularly suitable for celebrations where impact, width, and distinctive performance are a priority—such as New Year’s Eve, milestone birthdays or large outdoor parties.