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Imported from Switzerland

Always On.
Zero Power.

Self-powered tritium vials. No batteries. No charging. Just pure, self-sustained light for up to 25 years.

Price is for 1 UNIT

Choose Size & Color ↓View Compatibility

Explore

25 Years

Max Glow Lifespan

Gradually dims over decades, never stops

Tritium Colors

Green to purple, each with unique brightness

Swiss Origin

Directly imported, strict quality control

What EDC Enthusiasts Say

★★★★★

"Green is incredibly bright in the dark. Way beyond my expectations."

— J.M., Texas

★★★★★

"Installed ice blue on my Q1 V2. Looks absolutely stunning at night."

— R.K., UK

★★★★★

"Still glowing strong after 2 years. Best EDC upgrade I've made."

— T.S., Australia

★★★★★

"Swiss quality you can see. Literally. In complete darkness."

— D.W., Canada

How Tritium Tubes Work

Inside each sealed glass vial, tritium excites a phosphor coating to create a steady glow. The result is always-on illumination with no battery or charging required.

Tritium gas (H-3)

β-decay electrons

Phosphor coating on inner wall

Tritium Sealed in Glass

Hydrogen-3 isotope undergoes natural beta decay, releasing low-energy electrons

Electrons Excite Phosphor

Beta particles strike the thin phosphor coating on the inner glass wall

Steady Continuous Glow

Phosphor emits a constant visible light for up to 25 years — no external energy needed

When sealed, tritium vials are safe to handle. Their beta radiation is too weak to penetrate the glass vial and is easily blocked by paper. Similar light sources are commonly used in watches, exit signs, and aviation instruments.

Why Tritium

Zero Power. Pure Light.

Beta decay of hydrogen-3 produces a self-sustained glow. No charging, no batteries, no UV activation — ever.

Self-Powered

Generates its own light through natural radioactive decay, 24/7, for decades.

Mil-Spec Heritage

Trusted in aviation, military optics, and aerospace where darkness is the norm.

Swiss Precision

Manufactured in Switzerland under strict quality control. Directly imported.

Sealed & Safe

Hermetically sealed borosilicate glass with phosphor coating. Maintenance-free.

8 Colors Available

Choose Your Glow

Each color has a distinct brightness. Green is the brightest and most popular for maximum visibility.

Green — Most Popular

Ice Blue — Best Contrast

Perceived Brightness

Among the standard colors, green is perceived by the human eye as the brightest. Due to differences in visual perception, the other colors appear dimmer by the following amounts. For maximum visibility in low light, Green and Yellow are the strongest choices.

Green100%

Yellow90%

White60%

Orange50%

Ice Blue40%

Pink20%

Red20%

Purple15%

Specifications

Two Sizes. One Standard.

Choose the vial that fits your Antdesign product or custom project.

∅1.5 × 6 mm Best for Small Slots

Compact — ideal for keychain slots & small tools

∅3 × 22.5 mm Brighter Glow

Larger vial — stronger illumination, fits bigger cavities

Material	Borosilicate glass + Tritium gas (H-3)
Lifespan	Up to 25 years (brightness gradually decreases over time)
Origin	Switzerland
Colors	Green, Ice Blue, Yellow, Orange, Red, White, Pink, Purple
Power	Self-luminous — no external source required
Sold As	1 vial per order
Applications	EDC tools, watches, instruments, aviation, decoration

Compatibility

Choose the Right Size for Your Product

Match the tritium vial size to your Antdesign EDC product.

Vial Size	Compatible Products
Φ1.5 × 6	• Pathfinder+ V2 • GH Carabiner • Q1 V2 - Supports Tritium Tubes • Titanium Belt Clip V2 • Titanium Grenade Keychain Glow Fob V2 • Titanium Thunder Hammer Keychain Glow Fob • E-ONE V2 • Titanium Lantern Tritium Bead • Titanium Lantern Glow Fob Mini • Apex
Φ2 × 6	No corresponding Antdesign product available
Φ2 × 12	No corresponding Antdesign product available
Φ3 × 11	• Titanium Lantern Glow Fob
Φ3 × 22.5	• Titanium Keychain Glow Fob

Care & Handling

Inspect with Confidence

We stand behind the quality of every vial we ship. Here's how to verify yours on arrival.

✓ Quick Inspection Guide

1Find a completely dark space, such as a closet or bathroom with all lights off.

2Open the package and inspect the tritium tube immediately on the delivery date.

3Place the item in total darkness and allow your eyes to adjust for about 30 seconds.

4An intact tritium tube should glow on its own and does not require any light charging.

5If the tube does not glow or has any defect, you must contact us by email no later than the end of the day following delivery. Photos of the defective tube must be provided together with the original packaging. Delivery time shall be determined solely by the carrier's tracking information and delivery confirmation record. Claims reported after this deadline will not be accepted.

★ Our Quality Promise

Every vial is inspected before shipping. To protect both parties, the item must be inspected immediately upon opening the package on the delivery date and checked in a completely dark environment. The delivery date and time shall be determined solely by the carrier's tracking information and delivery confirmation record. Any issue must be reported to us by email no later than the end of the day following delivery. Claims reported after this deadline will not be accepted.

Please note: Tritium vials are glass and inherently delicate. Once a tube has been handled for installation, test-fitted, or installed, no warranty, replacement, refund, or compensation will be provided — regardless of the condition. We strongly recommend inspecting every vial in complete darkness before any use or installation.

⚙

Free Installation Available

Ordering a tritium vial with an Antdesign product? Leave a note with your order specifying the color sequence, and we'll install it for you — no extra charge.

Light That Never
Runs Out.

Swiss-made tritium. No batteries. No charging. Just decades of glow.

From $8.90

per vial · price varies by size & color

Add to Cart — From $8.90

Swiss Imported Up to 25 Years of Glow Ships Worldwide

Always On.Zero Power.

Tritium Sealed in Glass

Electrons Excite Phosphor

Steady Continuous Glow

Zero Power. Pure Light.

Self-Powered

Mil-Spec Heritage

Swiss Precision

Sealed & Safe

Choose Your Glow

Two Sizes. One Standard.

Choose the Right Size for Your Product

Inspect with Confidence

✓ Quick Inspection Guide

★ Our Quality Promise

Free Installation Available

Light That NeverRuns Out.

Always On.
Zero Power.

Light That Never
Runs Out.

Best Seller

Tritium Vials