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ANTDESIGN / LANTERN GLOW FOB MINI
Antdesign Titanium Lantern Glow Fob Mini

Antdesign Titanium Lantern Glow Fob Mini

Four tritium vials in a 20 mm titanium lantern.
Glowing for the next 25 years.

The Lantern Glow Fob, scaled down: four sealed tritium vials set into a 20 mm CNC-machined Grade 5 titanium lantern, glowing on their own every night for decades — nothing to charge, nothing to switch on. Pick one color or four; every vial is set in its slot and fixed with UV adhesive before it ships — installed for free, and it stays put.

  • Four slots, eight colors — choose each slot yourself, UV-glued in place for free
  • Glows 24/7 for up to 25 years — no battery, no charging, no switch
From$25.90

Sealed Swiss-made vials, safe for everyday carry. Every "4 x Colors" option ships with four vials installed and UV-glued in place — ready to clip on.

30-Day ReturnsSealed & SafeFactory Direct Price
Up to 25yr
Self-powered glow
20 mm
Tall · 13.1 mm across
0
Batteries, ever
4 × 8
Four slots, eight colors
UV-glued
Vials fixed in place, installed free

Find what you need.
Leave the lights off.

Keys vanish into the dark. Zipper pulls all feel the same by touch. Gear disappears the moment the tent goes dark. The Lantern Mini puts four points of light on the exact thing you're reaching for — in whatever colors you choose.

Find your keys. Keep the lights off.
Four vials make one bright, unmistakable marker — the first thing you see when the room goes dark.
Go straight to the pocket you need.
Hang it on the zipper you use most; every other pull can stay lost in the dark.
Find your gear after lights out.
Tent door, headlamp, water bottle — clip it to whatever you reach for at 3 a.m.
Put one wherever you keep losing things.

Keys, pack, tent, flashlight, camera bag, dog leash — if you reach for it in the dark, it can carry a Lantern Mini. No charging before bed or a camping trip; the glow is simply there. It marks the item; it is not a flashlight.

Four slots.
Eight colors. Your mix.

Choose a 4 x Custom Colors set and pick each of the four slots yourself, or go all Green — the brightest — for the strongest single glow. Every set is installed and UV-glued in place for free before it ships. Use the chart below to balance reach against color.

Pick my colors — from $25.90
30-Day ReturnsSealed & SafeFactory Direct Price

Choose your set and your four colors in the product options above. For custom mixes, order the colors to match the Slot Diagram (Slots 1–4) in the product photos so we install them exactly as you picture them. Mix bright and soft colors for contrast, or run four of the brightest for maximum reach — the vials are fixed permanently, so choose the mix you want to keep.

Titanium Lantern Glow Fob Mini with four tritium vials
01 — Design
The lantern silhouette, scaled down.
Same signature lantern shape as our original Lantern Glow Fob, machined from a single piece of titanium and scaled down to 20 mm tall and 13.1 mm across. Four Φ1.5 × 6 mm tritium vials sit in windows cut around the body, so the glow reads as one small lantern rather than a single dot — light enough to forget on a zipper pull, bright enough to find your keys every night. Each vial is bonded into its slot with UV adhesive — no rattling, no loosening, nothing to work its way out — so it arrives ready to carry and stays that way for years.
CNC-machined Grade 5 titanium Lantern Mini body
02 — Material
CNC-machined Grade 5 titanium.
Real Grade 5 titanium (Ti-6Al-4V) — the alloy of jet engines and surgical implants, not coated alloy. Precision-machined so every edge of the lantern is crisp and every slot fits its vial exactly — a tight seat for the UV adhesive to bond to — and light enough to forget on a keyring. It won't rust, won't bend and won't age in your pocket.
Lantern Glow Fob Mini on a keyring
03 — Carry
The lightest way to carry a lantern.
Smaller and lighter than the full-size Lantern, it disappears on a keyring, a zipper pull or a flashlight lanyard and never snags in a pocket. Four vials in a body this small means more glow per gram than any single-vial fob — the pick for minimalists who still want the lantern look.
Pick my colors — from $25.90
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. Bonded into the titanium with UV adhesive, it stays exactly where it was installed.

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 Lantern Mini
Glow Paint
Glow duration
Up to 25 years
2-4 hours after charging
Self-powered
Yes
Needs light
Body material
Grade 5 Ti
Plastic
Color mixing
Up to 4 colors
One
Light charging
Never
Every day
Light sources
4 sealed vials
Painted surface
Light source fixed
UV-glued into titanium
Wears off

Four vials, UV-glued into titanium.

Every Φ1.5 × 6 mm vial is fixed in its slot with UV adhesive, so it cannot rattle loose or fall out. Order any "4 x Colors" set and we do all of this for free before shipping. Shell-only buyers install their own vials the same way — a dab of UV glue and a UV light, about a minute per vial.

Installing tritium vials in the Lantern Glow Fob Mini
Seat the vial in its slot
Each slot is machined to the Φ1.5 × 6 mm vial. Drop it in and press gently until it sits flush — no forcing.
Add a dab of UV adhesive
A small drop of clear UV glue along the edge of the vial is all it needs. Wipe away any excess before curing.
Cure it under UV light
A few seconds under a UV torch and the adhesive sets hard and clear. The vial is now bonded into the titanium.
Clip it on. Already glowing.
Order a "4 x Colors" set and we do all of the above for free, then check every vial in the dark before it ships.
4 vial slotsTi Gr.5 bodyΦ1.5 × 6 mm vialsFree installation~25 year glow8 colorsUV-glued vials20 mm tall4 vial slotsTi Gr.5 bodyΦ1.5 × 6 mm vialsFree installation~25 year glow8 colorsUV-glued vials20 mm tall

20 mm of lantern-shaped character

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

Lantern Glow Fob Mini size reference
Body materialGrade 5 Titanium (Ti-6Al-4V), CNC machined
Tritium vial capacity4 slots
Dimensions20 mm tall · 13.1 mm across (0.79 × 0.52 in)
Vial sizeΦ1.5 × 6 mm
Vial installationFixed permanently with UV adhesive · free installation on every order
Glow typeSelf-luminous / No charging
Glow lifespanUp to 25 years
Colors8 options, mix freely across the 4 slots
In the box"4 x Colors": titanium fob with four vials installed · "No Tritium (Shell Only)": titanium fob, no 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: four clear, steady points 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. The Φ1.5 × 6 mm vials are smaller than the ones in a full-size glow fob, so each point is finer; four together still make an unmistakable lantern shape. Brightness runs Green > Yellow > White > Orange > Ice Blue > Pink = Red > Purple; that's the physics of each phosphor, not a defect, so mix in Green or Yellow if reach matters more than color. 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. The titanium body will outlast the glow many times over. How tritium illumination works
The titanium body will shrug it off, and because each vial is UV-glued into its slot, nothing comes loose or falls out. The vials are still sealed glass tubes, though: a hard drop or impact on a hard surface can crack one. Treat it as a keychain, not a tool, and it will glow for years.
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 full-size 3 x 22.5 mm vial holds about 0.04 mg of tritium gas, and the tiny 1.5 × 6 mm vials in the Lantern Mini each hold far less. 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.
No. Every "4 x Colors" order — including "4 x Custom Colors" — is installed and secured with UV adhesive by us before it ships, at no charge. If you order the shell only and buy vials from us separately, we still install them for free. Only customers who source their own Φ1.5 × 6 mm vials need to glue them in: a small dab of UV adhesive, a few seconds under a UV light, about a minute per vial — see the steps above.
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 vials and the machining, not into someone else's margin.
It depends on the variant you choose. Any "4 x Colors" option includes the titanium fob and four tritium vials, installed for free before shipping. "4 x Custom Colors" lets you pick each slot; order them to match the Slot Diagram (Slots 1–4) in the product photos. "No Tritium (Shell Only)" is the titanium housing without vials, for customers who already own Φ1.5 × 6 mm vials or want to source their own — and if you buy vials from us separately, we still install them for free. Other keys, clips and accessories shown in photos are not included.
The vials are securely installed in the titanium housing, but they are glass, so we ask every owner to do a quick check as soon as the parcel arrives. It takes a minute:
  1. Open the box and, within five calendar days of the delivery date, take the fob into a completely dark room.
  2. Let your eyes adjust for 30 seconds and confirm all four tubes glow steadily.
  3. Look over each tube for cracks or chips.
  4. Spotted a problem? Email us with photos of the fob and the original packaging, and we'll sort out a replacement.
Every vial is inspected before shipping, which is why the check is quick: the warranty covers tubes that arrive damaged or non-glowing. Once the fob is in use — on a keyring, in a pocket or bag, or dropped — cracks, breakage or dimming from impacts and daily wear are not covered. 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 vials have their own arrival-check terms — see the answer above. Full details: Shipping & Returns.
Never search in the dark again.
Four vials, UV-glued into one tiny titanium lantern.

CNC-machined Grade 5 titanium, 20 mm tall. Four sealed tritium vials, fixed with UV adhesive. Free installation.
Pick your mix, clip it to the thing you always lose, and forget about batteries for years.

Pick my colors — from $25.90
30-Day Returns · Sealed & Safe · Factory Direct Price
Tritium Vial Capacity4 (Vials included based on selection)
TritiumΦ1.5*6mm
Installation MethodUV glue (required for secure placement)
MaterialGrade 5 Titanium
Height20 mm / 0.79"
Diameter13.1 mm / 0.52"
Tritium Glow25 years (with Swiss-made tubes)
  • 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 2 reviews
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B
Brandon

Pretty cool trinket. Glow effect is a little underwhelming, but it is there.

M
Mathew

Outstanding quality. Really really great