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Titanium Glow Capsule

Titanium Keychain Glow Fob V3

Whatever you reach for in the dark, find it first.
For the next 25 years.

Rated 4.9 by verified buyers · Read reviews

Keys on the nightstand, the right pocket of your pack, the tent zipper at 3 a.m., the flashlight when the power goes out. Clip a Glow Fob to it and it marks itself — a sealed tritium vial in a Grade 5 titanium capsule that glows on its own, every night, for decades. Nothing to charge, nothing to switch on.

  • Marks keys, bags, tents, flashlights — anything you need to find in the dark
  • Glows 24/7 for up to 25 years — no battery, no charging, no switch
From$57.90

Sealed Swiss-made vial, safe for everyday carry. Every color ships pre-installed — ready to clip on.

30-Day ReturnsSealed & SafeFactory Direct Price
Up to 25yr
Self-powered glow
Ti Gr.5
Titanium, V3 side protection
0
Batteries, ever
8
Glow colors
60s
Swap vial or glass, no tools

Find what you need.
Leave the lights off.

Keys vanish on a dark nightstand. Zipper pulls disappear into tent fabric. Even a flashlight is useless until you find it. One Glow Fob puts a steady point of light on the exact thing you're reaching for — and most owners end up with one on every piece of gear they grab after dark.

Glow Fob on a keyring, glowing in the dark
Find your keys. Keep the room dark.
Set them down anywhere — they're the first thing you see when the lights are off.
Glow Fob attached to everyday carry gear
Go straight to the pocket you need.
Mark the pocket you use most; no checking every zipper by touch.
Glow Fob on a bedside table before sunrise
Out the door before sunrise.
Whatever lives on the nightstand, the fob marks it — reach, take, leave, nobody wakes.
Glow Fob on a tent zipper at night
Find the tent door at 3 a.m.
Clip it to the entrance zipper; no phone light sweeping across sleeping people.
Glow Fob on a flashlight lanyard during a blackout
Find your light before you can turn it on.
When the power cuts out, the beam is one reach away — even in a pitch-black room.
Put one wherever you keep losing things.

Keys, pack, tent, flashlight, first-aid kit, dog leash — if you reach for it in the dark, it can carry a Glow Fob. No charging before bed or a camping trip; the glow is simply there. Keep the window facing out: it marks the item, it is not a flashlight.

Glow capsule in hand Glow capsule on keychain Glow capsule in darkness Glow capsule on desk
Real product · Actual glow · No post-processing

The details owners notice

4.9
All from verified buyers · The feel in hand, the size on a keyring, the freedom to change the glow
"This key fob is actually extremely cool. If you get the green, which you probably should, it is the brightest. A few people have already asked me where I got it. Highly recommend!"
Christopher W.
Green · Verified Purchase
Brighter than expected
"Build quality is far above other tritium key fobs I have purchased. The ease of changing out the vials allows me to switch colors to match my backpack for the day."
Jason H.
Green · Verified Purchase
Feels premium in hand
"Coolest key chain I got. The everlasting glow is a nice pop when keys are hanging in the ignition while driving at night! The titanium is crisp and clean."
Edy V.
Green · Verified Purchase
Perfect size for keys
"Very well milled titanium and the tritium is extremely bright. Love it and need more now!! Construction is excellent."
Matt
Green · Verified Purchase
Worth the price
"The green glow is just right for finding keys in the bottom of a work bag. It's so good I've ordered more for my wife and sister."
Anonymous
Green · Verified Purchase · Canada
Great gift
"Exactly as advertised, no charge needed. I like this one way better than the steel competitor — people say those bend. This one is titanium. Got mine in green for maximum brightness."
Nick
Green · Verified by Shop
Much better than cheap ones
"Great addition to my keychain. Extremely lightweight and provides a nice glow to help locate my keys in the dark. Well designed, not too big to hang on keys or a pack."
Brian B.
Green · Verified Purchase
Perfect size for keys
"Gift for a friend, nice size and everything looks as advertised. Love the design and it's so easy to find my key fob in the dark!"
A.
Verified by Shop
Great gift
"I love these fobs! The construction is excellent. Love the ability to replace the glass and change the trit tube later. A+ five stars, would recommend!"
David B.
Pink · Verified Purchase
Worth the price

See it in someone else's hands

Size, finish and real-world glow, from an independent EDC reviewer.

Watch: Titanium Glow Capsule

Open the review on YouTube · 17:04

Glow Capsule - Green

Eight colors.
One is yours.

Tap a color to preview it. Green is the brightest and the one most owners start with.

Preview: Green
Green
Yellow
White
Orange
Ice Blue
Pink
Red
Purple
Relative brightness
100%
Pick my glow color — from $57.90
30-Day ReturnsSealed & SafeFactory Direct Price

Real product photos, no filters. Choose add-ons in the product options above.

How the colors compare: Green reads brightest to the human eye and is the one most owners start with, with Yellow close behind — the best picks for a true low-light locator. White, Orange and Ice Blue sit in the middle: still easy to spot, more balanced in tone. Pink, Red and Purple are the softest — pick these for character rather than reach. All eight share the same self-powered vial, and you can always swap the vial later.

Max visibility
Best for finding keys, bag zippers, and gear in near-total darkness.
GreenYellow
Balanced glow
Visible at a glance, with a less intense look. Great for daily carry.
WhiteOrangeIce Blue
Subtle accent
A gentle ambient glow — more about character than locating things.
PinkRedPurple
V3 / Drop-tested on five surfaces

Keys get dropped.
See how V3 handles it.

Keys rarely land the way you expect. V3 adds a full-length side buffer and a reprofiled window so an edge-on hit is spread through the titanium shell instead of landing on the glass — and both the glass and the vial stay replaceable.

V1 · Previous
SIDE IMPACT LOAD LANDS DIRECTLY ON GLASS
Previous design: a wide side window meant an edge-on hit was carried by the glass tube itself.
V3 · Current
SIDE IMPACT LOAD SPREAD ALONG THE TITANIUM SHELL
V3: a full-length lateral buffer and a reprofiled window spread the same hit through the shell and cushioning before it reaches the glass.
V1
V3
Side-impact resistance
Baseline
Substantially improved
Lateral buffer layer
None
Full-length
Window profile
Wide opening
Reprofiled, shielded edges
Glass tube support
End caps only
End caps + side support
Vial protection on failure
Glass sacrificial
Sacrificial glass + cushioned vial
Vial & glass compatibility
V1 parts
Same 3 × 22.5mm standard
Five surfaces. One production unit. No cuts.
We dropped the same V3 onto:
01
Brick Pavement
02
Asphalt Road
03
Concrete Basketball Court
04
Wood Floor
05
Tile Floor

Watch the drop tests

Unedited footage from our own bench. Same production V3 unit, five surfaces, one take each. Judge for yourself.

Real Test Footage
V3 drop test footage

Open the drop tests on YouTube

Filmed in-house · No cuts within each drop · Production V3 unit
90%
of drops in our everyday-scenario testing left the fob without damage.
Antdesign internal testing on production V3 units. Results vary with surface, height and angle; beyond everyday drops the outer glass is designed to break first to protect the vial, and replacement glass is available.
Pick my glow color — from $57.90
30-Day ReturnsSealed & SafeFactory Direct Price
Shock-Absorbing Design
02 — Protection
Precision outside. Protection inside.
Most tritium fobs are a vial in a tube. V3 is a capsule engineered around the glass: the vial sits in a spring-loaded, shock-absorbing chamber, and V3 adds full-length side support that spreads knocks through the titanium shell before they reach the glass. In a serious fall the cheap, replaceable outer glass takes the hit so the tritium vial doesn't.
Grade 5 Titanium
01 — Material
Machined from Grade 5 titanium. Built to keep.
Real Grade 5 titanium (Ti-6Al-4V) — the alloy of jet engines and surgical implants, not coated alloy. Half the weight of steel, it shrugs off pocket wear, keys and sweat. It won't rust, won't bend and won't age on your keyring; the bead-blasted finish just gets more yours.
Borosilicate Glass
03 — Optics
Borosilicate glass lens. Stays clear for years.
Plastic yellows, scratches and hazes within weeks. Borosilicate glass — the same material as lab beakers — keeps optical-grade clarity that won't degrade. The glow looks as good on year five as on day one, and both the window and the vial can be replaced separately, so you keep the same fob for life.
Pick my glow color — from $57.90
30-Day ReturnsSealed & SafeFactory Direct Price

Why it never needs charging

Glow paint has to be charged under a light and fades within hours — usually before you need it. Tritium makes its own light: inside each sealed glass vial it excites a phosphor coating around the clock, whether the fob lives on your keys, in a pack pocket or at the bottom of a camping bin for months. Nothing to remember, nothing to switch on.

B-DECAY ELECTRONS TRITIUM GAS (H-3) PHOSPHOR COATING ON INNER WALL

Glows continuously for years

Hydrogen-3 undergoes natural beta decay inside a sealed glass vial, releasing low-energy electrons nonstop — day and night, whether you look at it or not.

Nothing to charge or maintain

Those electrons hit the phosphor coating on the inner glass wall and turn straight into visible light. No battery, no sunlight, no switch.

Sealed safely inside titanium

The phosphor keeps emitting a steady glow for up to 25 years, all self-contained. Swap in a fresh vial whenever you want it back at full strength.

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. The same light sources are used in watches, exit signs and aviation instruments.

Why this isn't a $5 glow stick

Tritium vs photoluminescent glow paint — the difference is 25 years.

Antdesign V3
Glow Paint
Glow duration
Up to 25 years
2-4 hours after charging
Self-powered
Yes
Needs light
Body material
Grade 5 Ti
Plastic
Lens
Borosilicate
N/A
Light charging
Never
Every day
Drop protection
Shock-absorbing
None
Color swap
60 seconds, no tools
No

New color. Same titanium fob.

Start with one color today. Switch to another next year, or refresh the vial a decade from now. No tools, no manual — just your thumbs and 60 seconds.

How to swap tritium vial
Twist off the tail cap
Screw thread plus O-ring seal — it won't loosen in your pocket. Two turns and it's free.
Slide out the glass tube
The glass tube holding the tritium vial slides right out. Handle the glass with care.
Seat the new tube
Drop in your chosen color, snap the plug home, slide it back in.
Done. Already glowing.
Tighten the cap, pocket it. Green on Monday, Ice Blue by Friday. The titanium body is the last one you'll need.
9mm diameter45.5mm lengthTi Gr.5 body3 × 22.5mm tritium tubeBorosilicate window~25 year glow8 colorsTool-free swap9mm diameter45.5mm lengthTi Gr.5 body3 × 22.5mm tritium tubeBorosilicate window~25 year glow8 colorsTool-free swap

45.5 mm of everyday character

Small enough to hang on a zipper pull. Bright enough to find from across a dark room.

Glow Capsule size reference
Overall sizeΦ9mm × 45.5mm
Tritium tubeΦ3mm × 22.5mm
Body materialGrade 5 Titanium (Ti-6Al-4V)
WindowBorosilicate glass
Glow typeSelf-luminous / No charging
Glow lifespanUp to 25 years
Colors8 options
In the boxCapsule + keyring + pre-installed vial (color variants)
Optional add-onsBackup outer glass · Extra vials

A few things worth knowing

Yes. The tritium is hermetically sealed inside borosilicate glass, inside titanium. Its low-energy beta radiation cannot penetrate the glass, let alone skin. The same light sources are used in watches, exit signs and aviation instruments. Just never open, cut or deliberately break the vial; if you ever suspect it's damaged, stop using the fob and contact us.
Think of it as a marker, not a flashlight: a clear, steady point of light you can spot across a dark room once your eyes adjust — enough to find keys, a zipper pull, a flashlight or a bag in total darkness. Green is the brightest choice; the other colors are chosen for their look and appear softer. It shows you where the item is; it won't light up a keyhole or the room around you. Photos can look brighter than the real thing because of camera exposure.
A tritium vial keeps glowing for years without any charging, with a useful glow life of up to 25 years depending on the color and where you view it. The glow softens gradually over that time rather than switching off; most owners find it practically useful for 15+ years. When you want it back at full strength, swap in a new vial and keep the same titanium body. How tritium illumination works
V3 uses a spring-loaded chamber and full-length side support so impact energy is absorbed before it reaches the glass — watch the drop-test video above. The outer window and the inner vial are still glass and can break in a serious fall; the design lets the cheap, replaceable outer glass take the hit first. Replacement outer glass is available as an add-on, and we recommend adding one to your order.
The vial sits inside the titanium body and very rarely breaks. If it does, nothing dangerous happens: tritium is a gas, so it spreads out and is gone. Why the risk is low A 3 x 22.5 mm vial holds about 0.04 mg of tritium gas. Tritium gas is barely absorbed by the body and is mostly exhaled, so even the extreme case of inhaling that entire amount at once works out to roughly a few days of natural background radiation. In reality the gas spreads through the room in seconds and you breathe in only a tiny fraction of it, well below a single day of background. There is nothing to clean up beyond a bit of glass. Three things not to do
  • Do not crush, cut, drill or heat a vial on purpose.
  • Do not open a vial to reuse the phosphor. The gas is the useful part, and it is gone once the seal breaks.
  • Do not give loose vials to children. The glass is the hazard, not the tritium.
Yes. Tritium keychains are consumer self-luminous products, not hazardous materials, and travel in carry-on or checked luggage. If you fly a route with unusual rules, the airline can confirm in a minute. FAA packing guidance
We own the CNC machines. Design, manufacturing and shipping are all in-house, and we sell directly to you. No middlemen, no distributor markup — your money goes into the titanium, the vial and the serviceable construction, not into someone else's margin.
It depends on the variant you choose. If you select a color (Green, Ice Blue, etc.), you receive the titanium capsule, keyring attachment, and a pre-installed tritium vial in that color — ready to glow out of the box. If you select No Tritium (Shell Only - No Glow), you receive the titanium capsule and keyring attachment without a tritium vial, for customers who already own vials or want to source their own. Backup glass and extra vials are optional add-ons; other keys, clips and accessories shown in photos are not included.
Both the tritium vial and the outer window are glass, so we ask every owner to do a quick check on the day the parcel arrives, before installing or using the fob. It takes a minute:
  1. Open the box on the delivery date (per the carrier's tracking record) and keep the packaging.
  2. Look over the outer glass for chips or cracks.
  3. Take the fob into a completely dark room, let your eyes adjust for 30 seconds and confirm the vial glows steadily on its own.
  4. Spotted a problem? Email us by the end of the following day with photos of the part and the original packaging, and we'll sort out a replacement.
Every vial and glass tube is individually inspected before shipping, which is why this window is short: once a fob has been handled beyond this first check, test-fitted, installed or used, the glass components are no longer covered for replacement or refund. The titanium body is unaffected. Email Antdesign support
Shipping options and delivery estimates are shown at checkout. Our 30-day return policy has eligibility conditions, including original, unopened packaging; contact us before sending a return. The tritium vial and outer glass have their own arrival-check terms — see the answer above. Full details: Shipping & Returns.
Never search in the dark again.
Keys. Packs. Tents. Flashlights.

Grade 5 titanium. Tritium core. Borosilicate glass.
Pick a color, clip it to the thing you always lose, and forget about batteries for years.

Pick my glow color — from $57.90
30-Day Returns · Sealed & Safe · Factory Direct Price
Overall sizeΦ9 mm × 45.5 mm (Φ0.35" × 1.79")
Tritium tubeΦ3 mm × 22.5 mm (Φ0.12" × 0.89")
Body materialGrade 5 Titanium (Ti-6Al-4V)
WindowBorosilicate glass
Glow typeSelf-luminous / No charging
Glow lifespan~25 years visible
Colors8 options
IncludesCapsule + keyring (tritium vial included with color variants)
  • Quality Guaranteed by Antdesign
  • 30-Day Return Policy
  • Secure payments
  • Standard shipping: 5-8 business days
  • Express shipping: 3-5 business days

Customer Reviews

Based on 156 reviews
83%
(130)
9%
(14)
3%
(5)
1%
(2)
3%
(5)
B
Bryan

Very nice! Got for my wife and she loves it. Glows bright enough to find lost items at night.

r
russ messinger (United States)
Nice addition to key chain

Nice addition to key chain,very handy finding keys

W
William

Exactly as advertised! Very fun little trinket to have on my keys.

D
Donald Goodall (United States)
Titanium Keychain Glow Fob V3

Great little light!

S
Salvatore

Not that bright

A
Anonymous (United States)
Just perfect

It’s great. I love the color and design. Thanks

C
Charlie
Shipping was good and fast… very nice never needing to recharge

Shipping was good and fast… very nice never needing to recharge. Makes keys easy to locate and best of all well made and looks awesome?!!?

R
Ronald

Not bright at all. Total waste of money

c
cody pondexter

i like it alot..... was hoping it was about 25% bigger but i am still very happy with it